P R O D U C T   L I N E   B R O C H U R E

Reed Relays & Optocouplers

|Smart.

02

CONTENTS

03

   About Standex

06

   Our Capabilities

08

   Our Approach & Process

10

   Reed Relay Technology

14

   Battery Management Systems

16

   Reed Relay Selection Guide

26

   Optocoupler Selection Guide

32

   E-Cars & Alternative Energy

34

   Test & Measurement

36 

  Medical

38

   Intrinsically Safe

Partner, Solve, Deliver

®

 

“Solving your complex 

problems is why we exist.”

|Smart.

That’s

 

standexelectronics.com

03

ABOUT STANDEX

Customer Focused Engineering Solutions. 

“Innovating for more 

than 50 years.”

The Standex Electronics business, a division of Standex International Corporation (NYSE:SXI), has been 
providing solutions through high-performing products since the 1950’s. Through growth, acquisition, 
strategically partnering with customers, and applying the latest engineering designs to the needs of our 
ever-changing world, Standex Electronics technology has been providing quality results to the end-user. The 
approach is achieved by partnering with customers to design and deliver individual solutions and products 
that truly address customers’ needs.

Standex Electronics is headquartered in Fairfield, Ohio, USA, Standex Electronics has eleven manufacturing 
facilities in seven countries, located in the United States, Germany, China, Mexico, the United Kingdom, Japan, 
and India.

04

WHO WE ARE / WHERE WE PLAY

Powerfully

 

transforming. “When failure is not an option, 

designers of critical electronic components rely on Standex 
and their decades of experience.”

S

tandex Electronics is a worldwide market leader 
in the design, development and manufacture of 

custom magnetics and power conversion components 
and assemblies. Our work, growth, and dedication to 
providing reliable high-quality products through our 
engineering and manufacturing expertise go beyond 
products we ship.  

We offer engineered product solutions for a broad 
spectrum of product applications in all major markets, 
including but not limited to: 
•  Aerospace & Military
•  Alternative Energy
•  Automotive (EV) & Transportation
•  Electric Power & Utilities 
•  Medical
•  Smart Grid & Metering
•  Industrial & Power Distribution
•  Test & Measurement 
•  Security & Safety
•  Household & Appliances
•  Mining & Intrinsically Safe

 
Our values and what we believe align to the partner, 
solve, and deliver® approach. We produce parts but 
we are more than that. Connecting with your team 
as a strategic partner, listening to your challenges, 
and arriving at ways to solve your complex problems 
through our solutions are why we exist. We have 
custom capabilities that address your needs. Our 
team leverages our dynamic and diverse engineering 
expertise and other resources such as our global 
facilities for logistics and production. 

1960  National Transistor
1969  Paul Smith Company

1971 Comtelco
1973 Underwood Electric
1974 Van Products

1998 ATR Coil /  
Classic Coil Winding

2001 ATC-Frost Magnetics
2002 Cin-Tran
2003 Magnetico / Trans America
2004 Lepco
2008 BG Laboratories

2012 Meder Electronic
2014 Planar Quality Corp.
2015 Northlake Engineering, Inc.
2017 OKI Sensor Device Corp.
2018 Agile Magnetics
2020 Renco Electronics, Inc.

1960

1970

1990

2000

2010

A  

S TA N D E X  

E L E C T R O N I C S   C O M PA N Y

05

Standex Electronics has been innovating for over 
50 years by developing new products, partnering 
with customers, and expanding our global 
capabilities. We have also grown our global reach 
and local touch through synergistic acquisitions.

06

MANUFACTURING

Automated Optical Inspection (AOI)
Auto AT Switch Sorting
SMT Line with Pick & Place & Reflow
Reed Switch Manufacturing
Reed Relay Design & Manufacturing
Automatic CNC Winding & Termination
Bobbin, Layer, & Self-Supporting Winding
Thermoplastic & Thermoset Overmolding
Wave & Selective Soldering
Low Pressure (Hot Melt) & Injection Molding
Potting - 2 Component
Reflow Oven – Multiple Zone Convection
Stainless Steel, Metal & Plastic Fabrication
Lean Manufacturing Principles
Complete, In-House Machine Shop

ENGINEERING

 3-D Magnetic Sensor Mapping
3-D CAD Modeling & 3-D Printing
Electronic sensor engineering
Circuit Design and PCB Layout
Mechanical Design & Packaging
Rapid Prototyping
Magnetic Simulation Software
Mechanical, Thermal & FEA Analysis
Plastic Mold Flow Simulation
APQP Project Management

QUALITY & COMPLIANCE

AS9100, ISO9001 & IATF16949 Certifications
ITAR Compliance
Automotive Core Tools
RoHS, REACH, UL, ATEX & IECEx, VDE, Vds

TESTING & LAB CAPABILITIES

High Voltage/Partial Discharge Testing 
Specialized Lab Testing Equipment: Network 
Analyzers, Nanovoltmeters, Gauss / Teslameters, 
Fluxmeters, Picoammeters
Full Load & Temperature Rise Testing
2-D/3-D Microfocus X-ray Inspection
Digital Microscopic Inspection
Burn-In & Life Testing
Thermal Shock & Temperature Cycling
Humidity, Salt Fog, & Solderability
Moisture Resistance & Seal Testing

OUR CAPABILITIES

07

MEDER electronic
UMS05-1A80-75D

1

            yyww/P

Standex-Meder Electronics

SIL12-1A72-71L

MEDER  

       YM/P

LI05-1A85

Standex-

Meder

SIL12-1

A85-78D

3K

1

YW

/P

Standex-Meder Electronics

SIL05-1A72-74L

MED

ER e

lect

roni

c

DIP

05-

1C9

0-5

1L

YW

/P

relay

modules

4-8 pole relays in single package
Built-in relay drivers and shift registers
Up to 4GHz RF signals

intrinsically safe

 

ATEX/IECEx approved relays 

and optocouplers
High isolation and 

non-arcing
ATEX relays used for 

galvanic separation

general purpose

Hermetically sealed 

reed switch technology
Multitude of package sizes 

in SMT and thru-hole
Long life expectancy and 

high insulation resistance

high density

Small thru-hole and SMT packages 

for closely stacked matrices

Multiple pole packages for 

reduced material handling
High voltage and high carry 

currents in standard packages 

low thermal

Thermal offset <1µV
Insulation resistance >10^12Ω
High voltage isolation up to 1.5kVDC

high voltage

& isolation 

 

Up to 10kVDC switching
Up to 15kVDC isolation
Switching currents up to 3 amps 

and carry currents up to 5 amps

high frequency

 

Ability to carry RF signals 

from DC up to 7GHz
Internal coaxial shields 

for 50 Ω impedance
<0.3pF typical capacitance 

across open switch

REED RELAY

SOLUTIONS

Customer Focused 

Engineering

Solutions

PARTNER | SOLVE | DELIVER

®

08

PARTNER

 

// TEAMWORK

Dig deep into the customer’s project  
and develop relationship through our  
thought leadership, expertise, team,  
and global footprint.

SOLVE

 

// UNDERSTAND

Capabilities, lab, size, shape, power  
management, ranges, frequency, and more 
around how our capabilities can provide 
efficient, productive, designs & products. 

DELIVER

 // QUALITY

Help customers win through our diverse 
products, dynamic capabilities, reliable  
high-quality magnetics solutions, and  
customer driven innovation and service. 

Our 

Approach

•  Understand Application
•  Define Design Targets
•  No. of Switches & Form (A,B,C,E)
•  Coil Voltage
•  Max Voltage, Power, & Current
•  Hot or Cold Switching
•  Life Expectancy Requirements
•  Isolation Requirements
•  Impedance Limitations
•  Temperature Range

•  Certifications & Standards
•  Open Engineering Team Dialogue
•  Footprint, Special Pin-Outs
•  Optimize Efficiency 
•  Electrical Modeling
•  Preliminary Design Approval
•  Identify Custom Components
•  Creepage & Clearance Distances
•  Generate Print & Quotation

•  Final Design Approval
•  Generate BOM
•  Order Material
•  Queue Samples
•  Sample Build
•  Test & Report
•  Application Testing
•  Feedback
•  Repeat As Needed

•  Production Order
•  APQP
•  FAI
•  DFMEA & PFMEA
•  Line Audit
•  PPAP
•  Delivery 
•  Sustaining Engineering

Pre-Qualify

INTERACT

FEEDBACK

DEVELOP

Collaborate

Work

Deliver

Our Custom Solutions Process

09

Complex problems deserve custom solutions

 - As your 

“application engineer 

experts”

, we deliver custom design, development, and manufacture of reliable 

high-quality reed relays & optocouplers that are used across all major markets.

|Strong.

10

REED RELAY TECHNOLOGY

“Fast switching in the hundreds of microseconds and long 
life capability that surpasses electromechanical relays.”

T

he 

Standex Electronics brand “MEDER electronic REED RELAYS”

 came as 

the result of the 2012 acquisition of MEDER electronic in Germany, where the 

production of high quality reed relays originated. Reed relays and reed sensors 
both use the reed switch as the heart of their switching mechanism. Therefore, 
all the features associated with Standex Electronics’ reed switch technology are 
captured in 

MEDER electronic reed sensors

 and 

MEDER electronic reed relays.

 

New applications continue to arise at a significant pace for both products because 
of the reed switch’s unique switching capability. 

Standex Electronics is the world’s largest manufacturer of reed switches  

(>700M/yr)

 with >50% market share offering the most comprehensive listing 

of reed switches that cover the majority of low power switching requirements.  
Because reed switches are hermetically sealed (glass to metal seal) they 
are impervious to almost all environments.  This opens up a vast number of 
applications where they are the only technology capable of meeting specific 
requirements where certain mechanical switches and semiconductor switches are 
environmentally limited. 

|Strong.

That’s

 

standexelectronics.com

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12

STANDEX ELECTRONICS UNIQUE ADVANTAGES

Global leader in reed relay manufacturing and world’s largest reed switch  
manufacturer >50% market share
• 

Unique flat blade switches 4mm & 10mm for SMD processes

• 

High voltage vacuum version now available

• 

Highest industry quality and manufacturing volume

• 

Suitable for high-reliability automotive & ATE

• 

Long life expectancy, wider product range with form C, high voltage, etc.

• 

Most reliable in the market

In-house life testing capabilities
• 

Unique, proprietary life cycle testing technology

• 

Monitors and analyzes each cycle in real time

• 

Adjustable loads, from 1 milliwatts up to 100 watts

• 

Speeds of 100 hertz, 100 times per second

ELECTRICAL & MECHANICAL BENEFITS

Long life, billions (10^9) of operations (load dependent)
Multi-pole configurations up to 8 poles
Form A, B, C, and E versions
Stable low contact resistance <150 mΩ
High insulation resistance >10^14 Ω
Ability to switch up to 10,000 VDC
Breakdown voltages and dielectric strength up to 15kVDC
Carry currents up to 5 Amps continuous (10 Amps pulsed)
Withstand shocks to 100g, vibrations 50-2,000Hz at 20g
Hermetically sealed switches
Operate times in the 500μs to 3 ms range
Suitable for high density matrix assembly
Wide array of coil resistances
Large assortment of package styles and pin-outs

13

OUR PRODUCTS ARE RECOGNIZED*

Tested in accordance with AEC-Q200
In compliance with UL, CSA, EN60950, VDE, BABT 223ZV5,  
ATEX & IECEx, RoHS, REACH (*not applicable to all products)

14

“Reed Relays are making headway in some of the most 
demanding applications and emerging markets.”

W

e offer engineered reed relay solutions for a 
broad spectrum of product applications in all 

major markets. Battery charging, electric vehicles, 
solar inverters, medical, and test and measurement 
markets are just some of the areas where reed 
technology is gaining ground. 

APPLICATIONS

Automotive, Electric & Hybrid Vehicles

- Battery Management Systems
- Battery Conditioning
- High Insulation Measurement

Renewable Energy - PV Systems

- Solar Inverters
- Power Distribution

Medical Equipment

- Surgical Generators
- Automated External Defibrillators
- Isolation Functions

Test & Measurement

- Integrated Circuit Testers
- Automated & Precision Test Equipment
- Multiplexers, High Density Matrices

Intrinsic Safety

- Electronics, Mining, Oil & Gas Production
- Geothermal & Seismic Instrumentation

HIGH ISOLATION MEASUREMENT

KT Series (SMT/THT 30 x 11 x 9 mm)

•  Switching voltage 1kVDC
•  Breakdown voltage 4kVDC
•  Dielectric strength (coil-contact) 7kVDC
•  Creepage distance >17mm
•  Air clearance 12mm
•  Ambient range -40°C ~ +100°C
•  Capable of 125°C internal temperature
•  Millions of operations at 800V-1kVDC
•  Tested in accordance with AEC-Q200
•  UL94 recognized

+

–

15

“When properly designed-in, the reed relays 
features will stand up to the high requirements of 
modern electric devices very well.”

KT SERIES IN BATTERY MANAGEMENT SYSTEM

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REED RELAY SELECTION GUIDE

Complex problems deserve custom solutions 

- “Custom parameters for design in a large array of packages.”

General Purpose

High Density Boards

Reed Relay Series

BE

DIL

DIP

MS

SIL

UMS

CRR

RM05-8A-SP

Package / Mounting

Potted/THT

Potted/THT

Molded/THT

Molded/THT

Molded/THT

Molded/THT

Molded/SMD

Molded/THT

Contact Form

1-5A, 2 (B,C)

1-4A, 1 (B,C),  
2 (A,C)

1 (A,B,C),
2A

1A

1 (A,B,C)

1A

1A

8A + shift register

Power rating Max. (W)

100

10

10

10

10

10

10

10

Switching voltage Max. (VDC)

1000

500

500

200

500

170

170

170

Switching current Max. (A)

1.0

0.5

0.5

0.5

0.5

0.5

0.5

0.5

Carry current Max. (A)

2.5

1.0

1.0

1.0

1.0

1.0

1.0

0.5

Breakdown voltage Min. (VDC)

2500

1000

1000

225

1000

210

210

210

Insulation resistance Min. (Ω)

10^13

10^11

10^10

10^10

10^10

10^10

10^11

10^10

Coil resistance Min-Max. (Ω)

140-8,000

500-10,000

500-2,000

280-700

200-2,000

400-500

70-150

8x500

Coil voltage(s)

5, 12, 24

5, 12, 24

3, 5, 12, 15, 24

5, 12

3, 5, 12, 15, 24

5

3, 5

5 (3.3 driver)

Options and features

Plastic/metal case
Many pin-outs
Up to 5 A switches

Mercury optional
Int. mag shield
Line sense 11kΩ coil
Dielectric 4.25kVDC

Flyback diode 
Mercury optional
IC compatible in-line
Dielectric 4kVDC

Flyback diode
Micro in-line

Flyback diode
Mag shield

Ultra micro in-line 
Int. mag shield
Flyback diode

Ball Grid Array (BGA) 
Int. mag shield
Tape & Reel

Driver MAX4823  
Kickback Protection, 
Serial Interface
Compact size

Highlights &  
Certifications

 

 

 

 

 

 

 

 

 

Ordering info on page(s)

19

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R

eed Relays are ideally used for switching applications requiring low and stable contact resistance, low capacitance, high insulation resistance, long life and small 
size. For specialty requirements such as high RF switching, very high voltage switching, extremely low voltage or low current switching, Reed Relays are ideal. 

Custom-made relays are designed to offer specific features and parameters, such as a latching function, very high insulation resistance, different shielding options etc., 
and thereby appropriately complete our product range of standard relays.

Test &

Measurement

UL

Recognized

Tape &

Reel Packaging

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High Voltage & High Isolation

Reed Relay Series

MHV

KT

LI

SHV

BE/MRE

H

HE

Package / Mounting

Molded/SMD

Molded/SMD, THT

Potted/THT

Molded/THT

Potted/THT

Molded/Open Frame Potted/THT, Cable

Contact Form

1A

1A

1A

1A

1A, 2A

1 (A,B)

1 (A,B)
2A, 2C

Power rating Max. (W)

10

100

100

100

100

50

50

Switching voltage Max. (VDC)

1000

1000

1000

1000

1000

10000

10000

Switching current Max. (A)

0.7

1.0

1.0

1.0

1.0

3.0

3.0

Carry current Max. (A)

1.25

2.5

2.5

2.5

2.5

5.0

5.0

Breakdown voltage Min. (VDC)

3000

4500

4500

4000

7000

15000

15000

Insulation resistance Min. (Ω)

10^12

10^12

10^12

10^11

10^14

10^14

10^13

Coil resistance min-Max. (Ω)

140

65-1,800

150-2,000

140-2,000

70-1,400

180-700

50-2,000

Coil voltage(s)

5

3, 5, 12, 24

5, 12, 24

5, 12, 24

5, 12, 24

12, 24

5, 12, 24

Options and features

Isolation 5kVDC
Off-State leakage current typical 
1 nA
Meets creepage/clearance

Isolation 7kVDC
High creepage/clearance Tape & 
Reel

Isolation 7kVDC
High creepage/clearance

Flyback diode
Int. mag shield

Plastic/metal case
High creepage/clearance

Creepage  
distance  
>26mm

Highlights &  
Certifications

   

 

 

 

 

   

 

 

 

 

   

 

 

 

 

 

 

Ordering info on page(s)

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High Voltage & High Isolation

High Frequency

Relay Module

Reed Relay Series

HM

HI

CRF

HF

SIL RF

RM05-8A-SP

Package / Mounting

Potted/THT

Open Frame/THT

Ceramic/SMD

Potted/THT

Molded/THT

Molded/THT

Contact Form

1 (A,B)

1A

1A

1 (A,B),
2A

1A

8A + shift register

Power rating Max. (W)

50

100

10

25

10

10

Switching voltage Max. (VDC)

10000

1000

170

500

200

170

Switching current Max. (A)

3.0

1.0

0.5

1.5

0.4

0.5

Carry current Max. (A)

5.0

2.5

1.0

5.0A@30MHz

0.5

0.5

Breakdown voltage Min. (VDC)

15000

3000

210

9000

230

210

Insulation resistance Min. (Ω)

10^13

10^14

10^10

10^11

10^9

10^10

Coil resistance Min-Max. (Ω)

10-1,650

140-3,000

70-150

40-1,000

500-1,000

8x500

Coil voltage(s)

5, 12, 24

5, 12

3, 5

5, 12, 24

5, 12

5 (3.3 driver)

Options and features

Creepage  
distance  
>32mm

High Insulation  
Resistance

7GHz <40ps rise
10µV thermal offset
Int. mag shield
Coax screen Z = 50Ω

Electrostatic and  
mag shield

High RF 1GHz
Coax screen Z = 50Ω

Driver MAX4823 Kickback Protection, 
Serial Interface
Compact size

Highlights &  
Certifications

 

 

 

 

 

 

Ordering info on page(s)

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AEC-Q200

Tested

Battery

Management

EV &

Automotive

Hazardous

Locations

Medical

Solar

Test &

Measurement

UL

Recognized

Tape &

Reel Packaging

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Special

Reed Relay Series

MRX

BT/BTS

DIP / SIL

BE

Description

Intrinsically Safe

Relays certified for Explosive  
Environments and Hazardous Locations

Low Thermovoltage

Special internal design for very low Thermal 
Voltage Offset between Input and Output

Low Coil Consumption

“HR” suffix = higher coil resistance than  
standard, hence need a lower current

Latching

A short coil pulse closes contacts which remain 
unchanged until opposite pulse is present

Package / Mounting

Molded/THT

Potted/THT

Potted/THT 

Potted/THT

Contact Form

1, 2, 4 (A,B,C)

2A

1A

1E

Power rating Max. (W)

50

100

10

10

Switching voltage Max. (VDC)

375

1000

200

500

Switching current Max. (A)

0.7

1.0

0.5

0.5

Carry current Max. (A)

1.0

2.0

1

1.5

Breakdown voltage Min. (VDC)

2000

1500

200

2000

Insulation resistance Min. (Ω)

10^10

10^11

10^9

10^11

Coil resistance Min-Max. (Ω)

125-5,880

350-5,000

1,000 - 2,000

850-5,000

Coil voltage(s)

5, 12, 24

5, 12, 24

5, 12

5, 12

Options and features

Special pin-outs, ATEX and IECEx certified for 
Intrinsically Safe Circuits

Thermal Offset <1µV, Magnetic Shield
Special Pinouts

Magnetic Shield, Flyback Diode

Latching, 2 Input Coils, Metal Housing
Magnetic Shield

Highlights & Certifications

 

 

 

  

 

 

Ordering info on page(s)

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24

25

25

Test &

Measurement

Telecomm

Special

Reed Relay Series

NP-CL / DIL-CL

SPL

Description

Current Loop

Sensitive relays activated by a current level in range of 
milliamperes

Customized Design - 

Customized and special relay designs on demand

Package / Mounting

Potted/THT 

Contact Form

1A

Power rating Max. (W)

5

Switching voltage Max. (VDC)

100

Switching current Max. (A)

0.5

Carry current Max. (A)

1

Breakdown voltage Min. (VDC)

100

Insulation resistance Min. (Ω)

10^09

Coil resistance Min-Max. (Ω)

4-9

Coil voltage(s)

Pull-In in mA range

Options and features

Magnetic Shield
2 Coils Optional

Highlights & Certifications

 

 

Ordering info on page(s)

25

ATEX

Certified

IECEx

Certified

Hazardous

Locations

10-20

10

33

25.4

2.54

5.08

3.2

15

 °

0.5x0.25

2.54

15.24

3.2

7.62

5.1

(7.5)

6.5

(7.0)

19.3

10.4

20.3

15.24

2.54

3.4

7.62

10.1

Ø0.5

3.81

15.2

3.81

11.43

3.2

0.25x0.5

6.8

19

SOLUTIONS  | 

 Reed  Relays

Note:  All  dimensions  are  in  mm  and  tolerances  according  to  ISO  2768-m.  Please  refer  to  the  product  datasheets  on  our  website  for  full  dimensions,  specifications,  tolerances,  etc.    Not 

all part number combinations are possible, consult the factory for more info. We reserve the right to make any changes according to technological progress or further developments. 

R E E D   R E L AY S

A  

S TA N D E X  

E L E C T R O N I C S   B R A N D

BE

00 - 0 X 00 - X

General Purpose

   1            2    3       4            5

Rated Power Max. 100W/1000VDC/1A | Coil Resistance Ω 140-8,000

1

Nominal Voltage:  05, 12, 24

Highlights 

Up to 5A 

Switches

Many Pinouts

Switching1kVDC

Breakdown 

2.5kVDC

High IR 10^13Ω

2

Contact Quantity: 1-5A, 1-2B, 1-2C

3

Contact Form:

A, B, C

4

Switch Model:

66, 85, 90

5

Housing Option:

(P)lastic, (M)etal, (V) High Insulation

*Option (V) offers 4.5kVDC dielectric coil to contact

 

DIP 00 - 0 X 00 - 00 X

General Purpose

   1            2    3       4             5       6

Rated Power Max. 10W/500VDC/0.5A | Coil Resistance Ω 500-2,000

1

Nominal Voltage:  05, 12, 15, 24

Highlights 

 

Dielectric 4kVDC

IC Compatible 

in-line

IR 10^10Ω

2

Contact Quantity: 1, 2

3

Contact Form:

A, B, C

4

Switch Model:

72, 75, 90

5

Pin-Out:

10, 11, 12, 13*, 19, 21, 51 

6

Option:

L(M), D(Q), E(R), F(S)  ()=version with magnetic shield

*Breakdown voltage contact to coil 4kVDC 

 

DIL 00 - 0 X 00 - 00 X

General Purpose

   1            2    3       4             5       6

Rated Power Max. 10W/500VDC/0.5A | Coil Resistance Ω 500-10,000

1

Nominal Voltage:  05, 12, 24

Highlights

 

Line Sense

 11kΩ Coil

Dielectric 

4.25kVDC

IR 10^11Ω

2

Contact Quantity: 1-4A, 1B, 1C, 2A, 2C

3

Contact Form:

A, B, C

4

Switch Model:

66, 75, 90

5

Pin-Out:

13, 15, 21, 51, 62, 63 

6

Option:

L(M), D(Q), E(R), F(S)  ()=verion with magnetic shield

*HR = High Resistance (not available in 24V coil), CL=Current Loop

MS

00 - 1 A 87 - 75 XXX

High Density Boards

   1            2    3       4             5          6

Rated Power Max. 10W/200VDC/0.5A | Coil Resistance Ω 280-700

1

Nominal Voltage:  05, 12

Highlights

 

IR 10^11Ω

2

Contact Quantity: 1

3

Contact Form:

A

4

Switch Model:

87

5

Pin-Out:

75

6

Option:

L Standard, D Diode, (HR)=High Resistance coil

 

Test &

Measurement

UL

Recognized

5.08
(5.9)

19.8 (20.6)

5.08

15.24

3.5

0.5x0.25

7.8 (8.3)

4.4

3.6

8.6

3.6

6.85

1.52

4.56

3.3

0.25

9.5

33

7.35

14.7

3.3

2 (15x)

3.85

2

0.5x0.5

20

SOLUTIONS  |  

Reed Relays 

Note:  All  dimensions  are  in  mm  and  tolerances  according  to  ISO  2768-m.  Please  refer  to  the  product  datasheets  on  our  website  for  full  dimensions,  specifications,  tolerances,  etc.    Not 

all part number combinations are possible, consult the factory for more info. We reserve the right to make any changes according to technological progress or further developments. 

R E E D   R E L AY S

A  

S TA N D E X  

E L E C T R O N I C S   B R A N D

SIL

00 - 1 X 00 - 00 XXX

High Density Boards

   1            2    3       4             5           6

Rated Power Max. 10W/500VDC/0.5A | Coil Resistance Ω 200-2,000

1

Nominal Voltage:  03, 05, 12, 15, 24

Highlights

 

Dielectric 4kVDC

IR 10^11Ω

2

Contact Quantity: 1

3

Contact Form:

A, B, C (Form C in 5V only)

4

Switch Model:

72, 75, 90

5

Pin-Out:

71, 73 (73 = 4kV Dielectric)

6

Option:

L, M, D, Q, (HR)=High Resistance coil

L=No option, D=Diode, M=Mag Shield, Q=D+M

 

UMS 05 - 1 A 80 - 75 XXX

High Density Boards

   1            2    3       4             5          6

Rated Power Max. 10W/170VDC/0.5A | Coil Resistance Ω 400-500

1

Nominal Voltage:  05

Highlights

 

Internal Mag 

Shield

IR 10^10Ω

2

Contact Quantity: 1

3

Contact Form:

A

4

Switch Model:

80

5

Pin-Out:

75

6

Option:

L Standard, D Diode

 

CRR 00 - 1 A X - (250)

High Density Boards

   1            2    3      4               5

Rated Power Max. 10W/170VDC/0.5A | Coil Resistance Ω 70-150

1

Nominal Voltage:  03, 05

Highlights

 

IR 10^11Ω

2

Contact Quantity: 1

3

Contact Form:

A

4

Mount:

S (BGA), empty = standard

5

T&R Qty:

empty=1,000pcs standard, 250=250pcs option

 

RM 05 - 8 A - SP

High Density Boards/Relay Module

   1            2    3            4

Rated Power Max. 10W/170VDC/0.5A | Coil Resistance Ω 500

1

Nominal Voltage:  05

Highlights

 

Relay Module

8-pole  RF  

Low Profile

8-channel

2

Contact Quantity: 8 + shift register

3

Contact Form:

A

4

Pin-out:

SP=Standard in-line pin-out 2x2mm

Driver MAX4823 Kickback Protection, Serial Interface, Compact size

 

Test &

Measurement

UL

Recognized

Tape &

Reel Packaging

15.6±0.3

10.5

8.5

17.2

0.25

±0.015

10.4±0.3

4.2±0.3

1.5

5

10

10.4

30

25

5

3

Ø 0.65

7.62

20.32

6.22

24.13

5.08

7.62

3.18

Ø0.508

8.13

21

SOLUTIONS  | 

 Reed  Relays

Note:  All  dimensions  are  in  mm  and  tolerances  according  to  ISO  2768-m.  Please  refer  to  the  product  datasheets  on  our  website  for  full  dimensions,  specifications,  tolerances,  etc.    Not 

all part number combinations are possible, consult the factory for more info. We reserve the right to make any changes according to technological progress or further developments. 

R E E D   R E L AY S

A  

S TA N D E X  

E L E C T R O N I C S   B R A N D

MHV 00 - 1 A

High Voltage & Isolation

   1            2    3   

Rated Power Max. 10W/1000VDC/0.7A | Coil Resistance Ω 140

1

Nominal Voltage:  05

Highlights

Switching1kVDC

Breakdown 

3kVDC

UL Recognized

High IR 10^12Ω

Dielectric 5kVDC

   

 
 

 

2

Contact Quantity: 1

3

Contact Form:

A

Smallest high voltage relays up to 1kVDC switching voltage
Meets required creepage & clearance distances acc. to IEC 60664-1,  
IEC 60255-27 and ISO 6469-3
Off-State leakage current typ. 1 nA

  

SHV 00 - 1 A 85 - 78 X0K

High Voltage & Isolation

   1            2    3       4              5      6    7

Rated Power Max. 100W/1000VDC/1A | Coil Resistance Ω 140-2,000

1

Nominal Voltage: 

05, 12, 24

Highlights

Alternative for 

Mercury Wetted

Breakdown 

4kVDC

High IR 10^11Ω

Int. Magnetic 

Shield

2

Contact Quantity:

1

3

Contact Form:

A

4

Switch Model:

85

5

Pin-out:

78

6

Option:

L (Standard), D (Diode)

7

Breakdown Voltage: 2KVDC, 3KVDC, 4KVDC

 

LI

00 - 1 A 00

High Voltage & Isolation

   1            2    3       4   

Rated Power Max. 100W/1000VDC/1A | Coil Resistance Ω 150-2,000

1

Nominal Voltage: 

05, 12, 24

Highlights 

Switching1kVDC

Breakdown  

4.5kVDC

High IR 10^12Ω

Dielectric 7kVDC

  

 

2

Contact Quantity:

1

3

Contact Form:

A

4

Switch Model:

85

 

AEC-Q200

Tested

Battery

Management

EV &

Automotive

Solar

Test &

Measurement

UL

Recognized

Tape &

Reel Packaging

17

10.2

8.7

30.2

27.94

20.3

THT

SMD

0.1

8.7

12.7

3.4

KT

00 - 1 A - 40 X - XXX

High Voltage & Isolation

   1            2    3            4       5             6

Rated Power Max. 100W/1000VDC/1A | Coil Resistance Ω 65-1,800

1

Nominal Voltage:  03, 05, 12, 24

Highlights

Switching1kVDC

Breakdown 

4.5kVDC

UL Recognized

High IR 10^12Ω

Dielectric 7kVDC

   

 
 

 

2

Contact Quantity: 1

3

Contact Form:

A

4

Layout:

40

5

Mounting:

SMD, THT

High creepage & clearance distances

 

18

30

54

82

21

17.9

35

Ø 2.8

2

21

4.1

10

14.5

10.1

65

16.6

42.5

3.2

Ø 0.8

15.5

19

10.16

5.08

68

25.4

50.08

3.2

Ø 0.8

19.8

22

SOLUTIONS  |  

Reed Relays 

Note:  All  dimensions  are  in  mm  and  tolerances  according  to  ISO  2768-m.  Please  refer  to  the  product  datasheets  on  our  website  for  full  dimensions,  specifications,  tolerances,  etc.    Not 

all part number combinations are possible, consult the factory for more info. We reserve the right to make any changes according to technological progress or further developments. 

R E E D   R E L AY S

A  

S TA N D E X  

E L E C T R O N I C S   B R A N D

H

00 - 1 X 00

High Voltage & Isolation

   1            2    3       4       

Rated Power Max. 50W/10,000VDC/3A | Coil Resistance Ω 180-700

1

Nominal Voltage: 

12, 24

Highlights 

Switching10kVDC

Breakdown 

15kVDC

High IR 10^14Ω

 

2

Contact Quantity:

1

3

Contact Form:

A, B

4

Switch Model:

69, 83

 

HE

00 - 0 X 00 - 000

High Voltage & Isolation

   1            2    3       4                5  

Rated Power Max. 50W/10,000VDC/3A | Coil Resistance Ω 50-1,500

1

Nominal Voltage: 

05, 12, 24

Highlights 

Switching10kVDC

Breakdown 

15kVDC

High IR 10^12Ω

Leakage Dist. 

>26mm 

Axial Wire  

Leads Optional

 

2

Contact Quantity:

1, 2

3

Contact Form:

A, B

4

Switch Model:

69, 83

5

Pin-out:

02, 03, 150, 300 (150 and 300mm axial cables)

 

HM 00 - 1 X 00 - 000

High Voltage & Isolation

   1            2    3       4                5  

Rated Power Max. 50W/10,000VDC/3A | Coil Resistance Ω 10-1,650

1

Nominal Voltage: 

05, 12, 24

Highlights 

Switching10kVDC

Breakdown 

15kVDC

High IR 10^12Ω

Leakage Dist. 

>32mm

Axial Wire  

Leads Optional

 

2

Contact Quantity:

1

3

Contact Form:

A, B

4

Switch Model:

69, 83

5

Pin-out:

02, 03, 150, 300 (150 and 300mm axial cables)

 

Medical

Test &

Measurement

10

10

33

25.4

2.54

5.08

3.2

00 - 0 X 00 - X

High Voltage & Isolation

   1            2    3       4            5

Rated Power Max. 100W/1000VDC/1A | Coil Resistance Ω 70-1,400

1

Nominal Voltage:  05, 12, 24

Highlights 

Switching1kVDC

Breakdown 

6kVDC

High IR 10^14Ω

2

Contact Quantity: 1, 2

3

Contact Form:

A

4

Switch Model:

85

5

Housing Option:

(P)lastic, (M)etal, (V) High Insulation

Isolation Voltage up to 6 kVDC

 

BE/
MRE

5.08

7.5

7.4

34

20.32

3

Ø 0.5

28

4.4

3.6

8.6

15.24

19

20

67

38.1

25.4

3.2

Ø 0.8

53.7

10.5

5.08

19.8

2.54

15.24

3.5

0.5x0.25

7.8

23

SOLUTIONS  | 

 Reed  Relays

Note:  All  dimensions  are  in  mm  and  tolerances  according  to  ISO  2768-m.  Please  refer  to  the  product  datasheets  on  our  website  for  full  dimensions,  specifications,  tolerances,  etc.    Not 

all part number combinations are possible, consult the factory for more info. We reserve the right to make any changes according to technological progress or further developments. 

R E E D   R E L AY S

A  

S TA N D E X  

E L E C T R O N I C S   B R A N D

HI

00 - 1 A 00

High Voltage & Isolation

   1            2    3       4   

Rated Power Max. 100W/1000VDC/1A | Coil Resistance Ω 140-3,000

1

Nominal Voltage: 

05, 12

Highlights

Switching1kVDC

High IR 10^14Ω

 

2

Contact Quantity:

1

3

Contact Form:

A

4

Switch Model:

66, 75, 85

 

SIL

00 - 1 A 72 - 74 X

High Frequency

   1            2    3       4             5       6

Rated Power Max. 10W/200VDC/0.4A | Coil Resistance Ω 500-1,000

1

Nominal Voltage:  05, 12

Highlights

 

1GHz RF

Coax screen for 

Z=50Ω  

Impedance

2

Contact Quantity: 1

3

Contact Form:

A

4

Switch Model:

72

5

Pin-Out:

74

6

Option:

L (Standard), D (Diode)

 

CRF 00 - 1 A X - (250)

High Frequency

   1            2    3      4               5

Rated Power Max. 10W/170VDC/0.5A | Coil Resistance Ω 70-150

1

Nominal Voltage:  03, 05

Highlights

 

7GHz >40ps rise

Coax screen Z 

= 50Ω

Low thermal 

offset 10µV typ.

IR 10^11Ω

2

Contact Quantity: 1

3

Contact Form:

A

4

Mount:

S (BGA), empty = standard

5

T&R Qty:

empty=1,000pcs standard, 250=250pcs option

 

HF

00 - 1 A - 54 - 0

High Frequency

   1            2    3            4           5

Rated Power Max. 25W/500VDC/1.5A | Coil Resistance Ω 40-1,000

1

Nominal Voltage: 

05, 12, 24

Highlights 

Carry current

5A@30MHz

Breakdown  

up to 9kVDC

IR 10^11Ω

2

Contact Quantity:

1

3

Contact Form:

A

4

Switch Model:

54

5

Breakdown Voltage: 5, 6, 8, 9

Complete Electrostatic and Magnetic Shielding

Battery

Management

Test &

Measurement

UL

Recognized

Tape &

Reel Packaging

Medical

12.1

10

32.4

27.94

2.54

7.62

3.2

Ø0.65

12.7

11

30.48

25.4

5.08

3.2

10

10

30

20

2.5

3.7

5.0

24

SOLUTIONS  |  

Reed Relays 

Note:  All  dimensions  are  in  mm  and  tolerances  according  to  ISO  2768-m.  Please  refer  to  the  product  datasheets  on  our  website  for  full  dimensions,  specifications,  tolerances,  etc.    Not 

all part number combinations are possible, consult the factory for more info. We reserve the right to make any changes according to technological progress or further developments. 

R E E D   R E L AY S

A  

S TA N D E X  

E L E C T R O N I C S   B R A N D

MRX 00 - 0 X 00

Special - Intrinsically Safe

   1            2    3       4    

Rated Power Max. 50W/375VDC/0.7A | Coil Resistance Ω 125-5,880

1

Nominal Voltage:  05, 12, 24

Highlights

Breakdown 

2kVDC

 

  

2

Contact Quantity: 1, 2, 4

3

Contact Form:

A, B, c

4

Switch Model:

66, 85, 90

 

00 - 2 A 00

Special - Low Thermal

   1            2    3       4   

Rated Power Max. 100W/1000VDC/1A | Coil Resistance Ω 350-5,000

1

Nominal Voltage: 

05, 12, 24

Highlights 

Switching1kVDC

Breakdown 

1.5kVDC

 Thermal Offset 

<1µV

 

2

Contact Quantity:

2

3

Contact Form:

A

4

Switch Model:

66, 75, 45 (BTS)

 

BT/

BTS

ATEX

Certified

Hazardous

Locations

Test &

Measurement

10.4

10.5

20.3

15.24

2.54

7.62

3.5

10

10.1

22

17.78

Ø0.5

5.08

2.8

10

10

33

25.4

2.54

5.08

3.2

25

SOLUTIONS  | 

 Reed  Relays

Note:  All  dimensions  are  in  mm  and  tolerances  according  to  ISO  2768-m.  Please  refer  to  the  product  datasheets  on  our  website  for  full  dimensions,  specifications,  tolerances,  etc.    Not 

all part number combinations are possible, consult the factory for more info. We reserve the right to make any changes according to technological progress or further developments. 

R E E D   R E L AY S

A  

S TA N D E X  

E L E C T R O N I C S   B R A N D

00 - 0 X 00 - 00 XHR

Special - Low Coil Consumpion

   1            2    3       4             5       6

Rated Power Max. 10W/200VDC/0.5A | Coil Resistance Ω 1,000-2,000

1

Nominal Voltage:  05, 12,

Highlights 

IR 10^9Ω

Breakdown 

200VDC

Magnetic 

Shield

Diode

2

Contact Quantity: 1

3

Contact Form:

A

4

Switch Model:

72

5

Pin-Out:

DIP = 12, 13, 51, SIL = 71

6

Option:

L, (M), = Standard D, (Q) = Diode () = Magnetic Shield

Coil power consumption 25 - 72 mW

*For dimensions refer to the standard DIP (p19) and SIL (p23) section

DIP/

SIL

1 A 00 - 0000 - 000

Special

 1    2       3                  4                    5

Rated Power Max. 10W/200VDC/0.5A | Coil Resistance Ω 4-18

Pull-In in mA range

Highlights 

Magnetic Shield

2 Coils Optional

Current Loop 

Relays

Activated by 

small current

1

Contact Quantity: 1

2

Contact Form:

A

3

Switch Model:

66, 81

4

Coil Resistance:

4/4, 9, 10, 15, 18

5

Pin-Out:

DIL = 13, 15, 18 NP = 210, 213, 218

Standard Pull-In Current = 15 mA

 

NP-CL/

DIL-CL

Test &

Measurement

Telecomm

BE

00 - 0 X 00 - X

Special - Latching

   1            2    3       4            5

Rated Power Max. 100W/1000VDC/1A | Coil Resistance Ω 500-800

1

Nominal Voltage:  05, 12, 24

Highlights 

Latching

Switching

500V

Breakdown 

2kVDC

 IR 10^12Ω

2

Contact Quantity: 1E, 2A+2B

3

Contact Form:

(A+B), E

4

Switch Model:

66, 85

5

Housing Option:

(M)etal

 

R E E D   R E L AY S

A  

S TA N D E X  

E L E C T R O N I C S   B R A N D

26

Intrinsically Safe

Special

Optocoupler Series

522

525

535

567

521

528

530

Description

Small housing with 
creepage distance 
of 12 mm and  
Isolation 4000VDC

Compact hous-
ing with creepage 
distance of 14.5 
mm and Isolation 
4000VDC

Optocoupler with  
Darlington Output 
and Current  
Transfer Ratio of 
300% 

Optocoupler with 
Schmitt Trigger as 
Output ensures  
transmission  
frequency up to 2MHz

Stable Optocoupler 
with a higher  
creepage distance 
of 25.4 mm and  
Isolation 6,000VDC

Two Optocouplers 
integrated into one 
housing with high 
Isolation of  
10,000VDC 

Slim housing with 
extra high  
Isolation from 
10,000 to  
22,000VDC

Output

Transistor

Transistor

Darlington

Schmitt Trigger

Transistor

Two transistors

Transistor

Package / Mounting

Potted/THT 

Potted/THT 

Potted/THT 

Potted/THT 

Potted/THT 

Potted/THT 

Potted/THT 

Isolation Voltage Input/Output Min. (VDC)

4,000

4,000

4,000

4,000

6,000

10,000

10,000 - 20,000

Creeping Distance, Air Path I/O Min. (mm)

12

14.5

14.5

14.5

24.5

42

34

Current Transfer Ratio lc/lf (lf = 10mA) Min. (A)

0.5

0.5

3.0

-

0.5

0.9

0.5

Transmission frequencies up to (KHz)

85

50

2

500

50

50

50

Insulation resistance input /output up to (Ω)

10^12

10^12

10^13

10^13

10^13

10^13

10^13

Ambient Temperature (°C)

-40 to 85

-40 to 85

-40 to 85

-20 to 85

-40 to 85

-40 to 85

-40 to 85

Options and features

Small size

Small size

High current  
transfer ratio

Fast switching time High creepage 

distance

Two optocouplers 
in one housing

Extra high voltage 
isolation

Highlights & Certifications

 

 

 

 

 

 

 

 

 

 

 

Ordering info on page(s)

28

28

29

29

30

30

31

ATEX

Certified

IECEx

Certified

Hazardous

Locations

OPTOCOUPLER SELECTION GUIDE

“Optocouplers Handle Hazardous Environments And Meet ATEX Intrinsically Safe Requirements.”

O

ften times electronic equipment is required to carry out certain functions in potentially explosive atmospheres. To prevent potential ignition of the explosive 
atmosphere via a spark or arc in these environments, all components must be selected very carefully. Components meeting these requirements are generally 

referred to as intrinsically safe.  These components must be tested such that they will not become an ignition point when subjected to short circuits or adjacent 
component failures. They must also switch to a defined state when subjected to overload conditions.  Our 522-03-i, 525-03-0-i, 535-04-0-i, and 567-70-i Optocoupler 
and MRX reed relay series (page 24) are all ideal for this environment.

27

TYPICAL OPTOCOUPLER FEATURES

•  Galvanic separation between input & output circuits 
•  Analog & digital signal transfer is possible 
•  Marginal coupling capacities between input & output 
•  Minor output delay times compared to relays 
•  Long life due to non-abrasive mechanical wear 
•  Isolation resistance between input & output up to 10^13Ω 
•  Magnetic fields do not impact operation 

•  A photodiode makes very short cycle times (microseconds) possible,  

with up to 500 KHz

•  Isolation voltage between input & output up to 22 kVDC 
•  Able to invert the output signal during transfer 
•  Lifetime factor increased by a factor of 10, if the LED is used with  

< 50% of the nominal current 

•  Resistant against voltage drop
•  ATEX & IECEx certified

Important Notice: The scope of the technical and application 
information included in this catalog is necessarily limited. 
Operating environments and conditions can materially 
affect the operating results of Standex Electronics products. 
Users must determine the suitability of any Standex 
Electronics component for their specific application, 
including the level of reliability required, and are solely 
responsible for the function of the end-use product.

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

































































































































































































































































































































































































































































































































































































































































































6.6

9

16.5

3.2

12.7

2.54

10

8

19

2.5

15.24

7.62

Ø0.65

28

SOLUTIONS  |  

Optocouplers

Note:  All  dimensions  are  in  mm  and  tolerances  according  to  ISO  2768-m.  Please  refer  to  the  product  datasheets  on  our  website  for  full  dimensions,  specifications,  tolerances,  etc.    Not 

all part number combinations are possible, consult the factory for more info. We reserve the right to make any changes according to technological progress or further developments. 

R E E D   R E L AY S

A  

S TA N D E X  

E L E C T R O N I C S   B R A N D

Layout 
(Top View)

Test Circuit

Test Circuit

Layout 
(Top View)

522

Intrinsically Safe

Insulation resistance input /output up to 10^12 Ω, Transmission frequencies up to 85KHz
Turn On/Off Time (µsec)

5.5/4.2

Highlights

Protection: II(1)G 

[Ex ia Ga] IIC

  

Small Package

Collector-Emitter Voltage Max. (VDC)

32

Forward Voltage U

f

 max. (VDC)

1.5

DC Forward Current I

f

 max. (mA)

75

Emitter Power Dissipation P

tot

 max. (mW)

170

Collector Power Dissipation P

tot

 max. (mW)

100

Output

Transistor

Isolation Voltage Input/Output Min. (VDC)

4,000

Turn On/Off Creeping Distance, Air Path I/O Min. (mm) 12
Current Transfer Ratio lc/lf (lf = 10mA) Min. (A)

0.5

525

Intrinsically Safe

Insulation resistance input /output up to 10^12 Ω, Transmission frequencies up to 50KHz
Turn On/Off Time (µsec)

5.5/4.2

Highlights

Protection: II(1)G 

[Ex ia Ga] IIC

Small Package

Collector-Emitter Voltage Max. (VDC)

32

Forward Voltage U

f

 max. (VDC)

1.5

DC Forward Current I

f

 max. (mA)

100

Emitter Power Dissipation P

tot

 max. (mW)

170

Collector Power Dissipation P

tot

 max. (mW)

100

Output

Transistor

Isolation Voltage Input/Output Min. (VDC)

4,000

Turn On/Off Creeping Distance, Air Path I/O Min. (mm) 14.5
Current Transfer Ratio lc/lf (lf = 10mA) Min. (A)

0.5

ATEX

Certified

IECEx

Certified

Hazardous

Locations






























































































































































































































































































































































































































































































































































































































































































































































































10

8

19

2.5

15.24

7.62

Ø0.65

10

10

19

3.2

15.24

7.62

Ø0.65

2.54

29

SOLUTIONS  |  

Optocouplers

Note:  All  dimensions  are  in  mm  and  tolerances  according  to  ISO  2768-m.  Please  refer  to  the  product  datasheets  on  our  website  for  full  dimensions,  specifications,  tolerances,  etc.    Not 

all part number combinations are possible, consult the factory for more info. We reserve the right to make any changes according to technological progress or further developments. 

R E E D   R E L AY S

A  

S TA N D E X  

E L E C T R O N I C S   B R A N D

Test Circuit

Layout 
(Top View)

Transfer Characteristics (IFT)

Test Circuit

Layout 
(Top View)

535

Intrinsically Safe

Insulation resistance input /output up to 10^13 Ω, Transmission frequencies up to 2KHz
Turn On/Off Time (µsec)

19.5/212

Highlights

Protection: II(1)G 

[Ex ia Ga] IIC

  

High Current 

Transfer Ratio

Collector-Emitter Voltage Max. (VDC)

32

Forward Voltage U

f

 max. (VDC)

1.5

DC Forward Current I

f

 max. (mA)

100

Emitter Power Dissipation P

tot

 max. (mW)

170

Collector Power Dissipation P

tot

 max. (mW)

100

Output

Darlington

Isolation Voltage Input/Output Min. (VDC)

4,000

Turn On/Off Creeping Distance, Air Path I/O Min. (mm) 14.5
Current Transfer Ratio lc/lf (lf = 10mA) Min. (A)

3.0

567

Intrinsically Safe

Insulation resistance input /output up to 10^12 Ω, Transmission frequencies up to 2MHz
Turn On/Off Time (µsec)

0.5/0.5

Highlights

Protection: II(1)G 

[Ex ia Ga] IIC

  

Fast Switching 

Time

Collector-Emitter Voltage Max. (VDC)

-

Forward Voltage U

f

 max. (VDC)

-

DC Forward Current I

f

 max. (mA)

45

Emitter Power Dissipation P

tot

 max. (mW)

-

Collector Power Dissipation P

tot

 max. (mW)

85

Output

Schmitt Trigger

Isolation Voltage Input/Output Min. (VDC)

4,000

Turn On/Off Creeping Distance, Air Path I/O Min. (mm) 14.5
Current Transfer Ratio lc/lf (lf = 10mA) Min. (A)

-

ATEX

Certified

IECEx

Certified

Hazardous

Locations





















































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































12.6

10

33

5

25.4

2.54

Ø0.65

7.62

14.6

16.5

52

3.2

45

2.5

Ø0.8

10

30

SOLUTIONS  |  

Optocouplers

Note:  All  dimensions  are  in  mm  and  tolerances  according  to  ISO  2768-m.  Please  refer  to  the  product  datasheets  on  our  website  for  full  dimensions,  specifications,  tolerances,  etc.    Not 

all part number combinations are possible, consult the factory for more info. We reserve the right to make any changes according to technological progress or further developments. 

R E E D   R E L AY S

A  

S TA N D E X  

E L E C T R O N I C S   B R A N D

521

Special

Insulation resistance input /output up to 10^13 Ω, Transmission frequencies up to 50KHz
Turn On/Off Time (µsec)

5.5/4.2

Highlights

High Creepage 

Distance

Collector-Emitter Voltage Max. (VDC)

32

Forward Voltage U

f

 max. (VDC)

1.5

DC Forward Current I

f

 max. (mA)

100

Emitter Power Dissipation P

tot

 max. (mW)

170

Collector Power Dissipation P

tot

 max. (mW)

100

Output

Transistor

Isolation Voltage Input/Output Min. (VDC)

6,000

Turn On/Off Creeping Distance, Air Path I/O Min. (mm) 24.5
Current Transfer Ratio lc/lf (lf = 10mA) Min. (A)

0.5

528

Special

Insulation resistance input /output up to 10^12 Ω, Transmission frequencies up to 50KHz
Turn On/Off Time (µsec)

5.5/4.2

Highlights

2 Optocouplers 

in one package

Collector-Emitter Voltage Max. (VDC)

70

Forward Voltage U

f

 max. (VDC)

1.5

DC Forward Current I

f

 max. (mA)

100

Emitter Power Dissipation P

tot

 max. (mW)

170

Collector Power Dissipation P

tot

 max. (mW)

100

Output

Two Transistors

Isolation Voltage Input/Output Min. (VDC)

10,000

Turn On/Off Creeping Distance, Air Path I/O Min. (mm) 42
Current Transfer Ratio lc/lf (lf = 10mA) Min. (A)

0.9

Test Circuit

Layout 
(Top View)

Test Circuit

Layout 
(Top View)



































































































































































































































































































































































































































































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

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

















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



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

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



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



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















































Ø7

38.6

4.0

35

Ø0.4

2.5

9.0

31

SOLUTIONS  |  

Optocouplers

Note:  All  dimensions  are  in  mm  and  tolerances  according  to  ISO  2768-m.  Please  refer  to  the  product  datasheets  on  our  website  for  full  dimensions,  specifications,  tolerances,  etc.    Not 

all part number combinations are possible, consult the factory for more info. We reserve the right to make any changes according to technological progress or further developments. 

R E E D   R E L AY S

A  

S TA N D E X  

E L E C T R O N I C S   B R A N D

530

Special

Insulation resistance input /output up to 10^13 Ω, Transmission frequencies up to 50KHz
Turn On/Off Time (µsec)

5.5/4.2

Highlights

Extra high  

Isolation Voltage

Collector-Emitter Voltage Max. (VDC)

32

Forward Voltage U

f

 max. (VDC)

1.5

DC Forward Current I

f

 max. (mA)

100

Emitter Power Dissipation P

tot

 max. (mW)

170

Collector Power Dissipation P

tot

 max. (mW)

100

Output

Transistor

Isolation Voltage Input/Output Min. (VDC)

10,000 - 20,000
(22,000 Option)

Turn On/Off Creeping Distance, Air Path I/O Min. (mm) 34
Current Transfer Ratio lc/lf (lf = 10mA) Min. (A)

0.5

Test Circuit

Layout 
(Top View)

Medical

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GENERAL REQUIREMENTS - APPLICATION DEPENDENT

High Isolation between control and load circuit (KT, LI)
High Isolation across contacts (KT, LI)
Capability of switching high voltage up to 1kVDC
Capability of carrying very low current (leakage current detection)
High Reliability
Long Lifetime
Compact Size
High Creepage & Clearance Distance
Following the norms IEC 60664-1, ISO 6469-3 and IEC 62109-1/2

S

tandex Electronics reed relays meet the requirements for proper isolation control within photovoltaic 
systems and the internal measurement systems of electric vehicles.  Especially for measuring 

isolation resistance across several components within a power system for solar market applications or 
prior to grid connection. They also assist in detecting current leaks, saving power and preventing injuries.

“Reliable, energy efficient, and high isolation control”

E-CARS & ALTERNATIVE ENERGY

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APPLICATIONS

•  Battery Management Systems
•  Solar Inverters
•  Power Distribution
•  Battery Conditioning
•  Smart Grid

CUSTOMER CONFIGURATIONS

•  Customized nominal voltage of coil
•  High coil resistance for low consumption
•  THT and SMD mounting
•  Life Time Testing dependent on Load
•  Customized Marking

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34

TEST & MEASUREMENT

S

witching both low and high level loads, and passing fast digital pulses (picosecond range) in a 50 
ohm impedance environment, while offering excellent isolation are just a few of the features that 

make Standex Electronics reed relays idealy suited in Test & Measurement applications. 

“Passing fast digital pulses with excellent Isolation”

GENERAL REQUIREMENTS - APPLICATION DEPENDENT

Perfect Isolation between coil/contact and across the open switch (KT, LI, SHV, BE, HI, H, HE, HM)
Capability of switching both low and high level loads
Internal Magnetic Shield for High Density Assembly (CRF, CRR, UMS, RM, SHV, SHC)
High Reliability and Long Lifetime
Low Leakage Currents
Fast Operation Time
High Frequency Signals (CRF, RM-4A, SIL-RF, HF)
Low Thermal Offset Voltage (BT/BTS)
Contact Capacitance 0.3 pF (CRR, CRF, UMS)

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APPLICATIONS

•  Insulation Testers
•  Digital Multimeter (DMM) & Oscilloscopes
•  Semiconductor Testers
•  Multiplexers & Data Selectors
•  Matrix Switches
•  Automated test Equipment
•  Cable Harnesses Testers
•  Embedded PCB Testers

CUSTOMER CONFIGURATIONS

•  Customized series MRE, SPL and many others
•  Open designs for very high IR coil to contact >10^14
•  High Creepage & Clearance Distances
•  Electrostatic Screen and Magnetic Shield optional
•  Switching RF signals up to 7 GHz
•  Internal Magnetic Shield for High Density Assembly
•  Customized coil voltage and pin-outs
•  High coil resistance for low consumption
•  Latching version with one or two coils

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MEDICAL

M

ost of today’s modern hospitals around the world are now equipped with new state of the art 
surgical operating rooms. Only reed relay technology is equipped to handle the high frequency, 

high current, and high voltage isolation requirements in a reliable and safe manner in medical 
equipment such as surgical generators and automated external defibrillators.

“Reliably carry high voltage and frequency signals while 
providing vital galvanic isolation.”

GENERAL REQUIREMENTS - APPLICATION DEPENDENT

High Isolation between control and load circuit
High Isolation across contacts
High Creepage & Clearance Distances
Capable of handling high voltage
High Reliability
Long Lifetime
Following the norms IEC 60601-1, IEC 61010 and IEC 60255-27

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APPLICATIONS

•  HF Surgical Generators
•  Automated External Defibrillators
•  Isolation Functions

CUSTOMER CONFIGURATIONS

•  Open designs for very high IR coil to contact >10^14
•  Creepage & Clearance Distances on demand
•  Electrostatic Screen and Magnetic Shield optional
•  Magnetic Shield for High Density Assembly
•  Customized coil voltage and pin-outs
•  High coil resistance for low consumption

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O

ur line of optocouplers can safely handle input/output isolation as high as 4,000 VDC that have 
met and been certified for the stringent requirements of ATEX. They offer insulation resistances as 

high as 10^13 ohms, operate in less than 10 µsec, and creepage distances from input to output are up 
to 14.5 mm. (see page 26 for more info)

“Isolation up to 4 kVDC and non-arcing environments”

GENERAL REQUIREMENTS - APPLICATION DEPENDENT

Intended for use in Systems in Potentially Explosive Atmospheres 
ATEX certified: KIWA 18ATEX0017U (Directive 2014/34/EU), Protection: II(1)G [Ex ia Ga] IIC
In compliance with EN IEC 60079-0 : 2018 and EN 60079-11 : 2012
Certified: IECEx KIWA 18.0009U, Protection: [Ex ia Ga] IIC
High Isolation Voltage between Input and Output up to 4 kVDC
Isolation resistance up to 10^13 Ohm
Fast Switching Time in microseconds 
High Reliability and Long Lifetime due to non-abrasive mechanical wear
Long creepage distances
Marginal coupling capacities between input and output 
Magnetic fields do not impact operation

INTRINSICALLY SAFE

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APPLICATIONS

•  Electronics for Mining
•  Oil & Gas Production
•  Geothermal Instrumentation
•  Seismic Instrumentation
•  Test & Measurement
•  Any Non-arcing Environment

CUSTOMER CONFIGURATIONS

•  Additional certifications on demand
•  High Voltage and Isolation Resistance Extensions
•  Temperature and Humidity Testing 
•  Size modifications on demand
•  Customized Pin-outs
•  Customized Laser Marking

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StandexMeder Europe (Germany)
+49.7733.9253.200
salesemea@standexelectronics.com

Standex Electronics
+1.866.STANDEX (+1.866.782.6339)
info@standexelectronics.com

Worldwide Headquarters
450 Thunderbird Lane

Fairfield, OH 45014 USA

StandexMeder Asia (Shanghai)
+86.21.37606000
salesasia@standexelectronics.com

Standex Electronics India (Chennai)
+91.98867.57533
salesindia@standexelectronics.com

Standex Electronics Japan (Kofu)
+81.42.698.0026
sej-sales@standex.co.jp