Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

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

Reed Switches & Sensors

|Smart.

CONTENTS

About Standex

Our Capabilities

Tool Shop

Our Approach & Process

Reed Switch Technology

Reed Switch Selection Guide

Custom Sensors

Reed Sensors

Magnets

Sensor Activation Distances

Hall Effect Sensors

Partner, Solve, Deliver

“Solving your complex

problems is why we exist.”

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

|Smart.

That’s

standexelectronics.com

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.

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

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.”

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

of reed switch and sensor solutions. Our sensor
solutions include Meder, Standex and KOFU (formerly
OKI) brand reed switches, as well as a complete
portfolio of reed relays, and a comprehensive array
of fluid level, proximity, motion, water flow, HVAC
condensate,

hydraulic pressure differential, capacitive, conductive
and inductive sensors. 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 & Transportation
•  Fluid Flow
•  Food Service
•  General Industrial
•  Heavy Duty Truck
•  Household & Appliances
•  HVAC/R
•  Hydraulics
•  Industrial & Power
•  Lighting

•  Medical
•  Metering
•  Off Highway
•  Pool & Spa
•  Recreational
•  Security & Safety
•  Space
•  Test & Measurement
•  Utilities & Smart Grid
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.

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

1960

1970

1990

2000

2010

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.

S TA N D E X

E L E C T R O N I C S C O M PA N Y

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.

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

MANUFACTURING

Automated Optical Inspection (AOI)
Auto AT Switch Sorting
SMT Line with Pick & Place & Reflow
Reed Switch Manufacturing & Sensor Packaging
Wire Prep & Harness Assembly
Thermoplastic & Thermoset Overmolding
Wave & Selective Soldering
Low Pressure (Hot Melt) & Injection Molding
Potting - 2 Component
Reflow Oven – Multiple Zone Convection
Laser Welding
Plasma Surface Treatment
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
Reed Switch Parametric Testing
Custom Sensor Test System Design & Build
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

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

Complete, In-House Machine Shop

“Utilizing advanced techniques in milling, wire
eroding, die sinking, and grinding since 1996”

• Laser welding
• PCB assembly and other
• Molding tool design and fabrication
• Machining processes including milling,

wire eroding, die sinking, and grinding

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

Tool Shop - Machinery & Equipment, Tools &
Assembly Services

tandex Electronics’ tool shop was established
in 1996, as a result of the growing demand

for high precision quality tooling for our Reed
Products as well as a means of expanding our
customer service offering. Our qualified tool shop
is a reliable partner providing customer support in
the areas of planning, designing and constructing
molding tools, punching tools and smaller pressure
die-casting tools. Whether single piece or mass
production tooling, a team of highly motivated and
qualified employees will work with you to design

and construct the tooling that is according to your
specifications as agreed upon in the form of a
written quotation. The most advanced techniques
will be utilized in milling, wire eroding, die sinking
and grinding, as well as a select grade of steel in
connection with the ideal coating will be used to
guarantee that the best quality and durability is
achieved for the longest life of the tool. In general,
sampling, optimizing and in-house maintenance
are provided for all tooling as well as first sample
and failure analysis reporting.

TOOL SHOP - MACHINERY, TOOLS & ASSEMBLY

Machinery & Equipment

• Sink EDM machine

EXERON / INGERSOLL
Machining stroke max. 620 x 420 x 400 mm

• Milling machine

HERMLE / BRIDGEPORT
Machining stroke max. 1000 x 500 x 500 mm

• Wire EDM machine

SODICK / MITSUBISHI
Machining stroke max. 530 x 370 x 265 mm

• Grinding machine

ELB-SCHLIFF / ZIERSCH
Machining stroke max. 800 x 400 x 475 mm

• Measuring machine

ZEISS
Machining stroke 450 x 450 x 400mm

• Several state-of-the-art lathe, milling and

grinding machines

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

Die-cast zinc tools

Various types for prototyping,
molding and stamping

Transfer molding tools

Low-pressure injection molding

Progressive stamping tools

for lead frames

Stamped parts

for housing

shields and contact pins

Specific Tools

Stamping Tools

Stainless steel tube machining

cutting, laser welding, marking

Manufacturing of electrodes

in copper or graphite

Fixture design and production

Tooling repair and maintenance

Development, design and
construction

CNC design, simulation,
verification and integration

Machine & Assembly Services

Design parts

with high quality

surfaces

Optical components

Technical molded parts

Gearwheels, spindles, frames and
holders

Insert molded parts

Injection Mold Tools

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

PARTNER | SOLVE | DELIVER

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

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

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

Complex problems deserve custom solutions

- As your

“application engineer experts”

we select the appropriate advanced sensing technology to meet the demands of our
customers. Our versatile engineering expertise in magnetic sensing technologies and
custom packaging allows us to be a one-stop-shop for your sensing requirements.”

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

LEADING BRANDS

tandex 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.

Reed relays and reed sensors both use the reed switch as the heart of their
switching mechanism. New applications continue to arise at a significant pace
for both products because of the reed switch’s unique switching capability. What
is driving these new applications is the ever broadening of new reed relay, reed
sensor and fluid level designs by Standex Electronics. Our solutions include

KOFU

(formerly OKI Sensor Device Corp.), MEDER and KENT brand reed switches

...

REED SWITCH TECHNOLOGY

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

KOFU REED SWITCHES

•  Largest global production volume >500M/yr
•  Widest product range 7mm - 21mm
•  Highest industry quality/long life
•  Suitable for high-rel automotive & ATE
•  Meet high voltage/breakdown requirements

MEDER REED SWITCHES

•  Mechanized manufacturing in Germany
•  World’s smallest 3.95mm
•  Unique flat blade ideal for surface mounting
•  High voltage vaccuum version now available

KENT REED SWITCHES

•  Manufactured in the UK
•  Clear glass 12.7mm - 20mm glass
•  Highly automated, lowest industry cost
•  Industrial grade- security, appliance, consumer

“Standex offers the most comprehensive listing of reed switches
that cover the majority of low power switching requirements”

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

he Reed Switch was first invented by Bell Labs in the late 1930s. However,
it was not until the 1940s when it began to find application widely as a

sensor and a Reed Relay. Here it was used in an assortment of stepping/
switching applications, early electronic equipment and test equipment. In the late
1940s Western Electric began using Reed Relays in their central office telephone
switching stations, where they are still used in some areas today. The Reed Switch
greatly contributed to the development of telecommunications technology.

Over the years several manufacturers have come and gone, some staying longer
than they should have, tainting the marketplace with poor quality, and poor
reliability. However, most of the manufacturers of Reed Switches today produce
very high quality and very reliable switches. This has given rise to unprecedented
growth.

Today Reed Switch technology is used in all market segments including: test
and measurement equipment, medical electronics, telecom, automotive, security,
appliances, general purpose, etc. Its growth rate is stronger than ever, where the
world output cannot stay abreast with demand.

As a technology, the Reed Switch is unique. Being hermetically sealed, it can exist
or be used in almost any environment. Very simple in its structure, it crosses
many technologies in its manufacture. Critical to its quality and reliability is its
glass to metal hermetic seal, where the glass and metal used must have exact
linear thermal coefficients of expansion. Otherwise, cracking and poor seals will
result. Whether sputtered or plated, the process of applying the contact material,
usually Rhodium or Ruthenium, must be carried out precisely in ultra clean
environments similar to semiconductor technology. Like semiconductors, any
foreign particles present in the manufacture will give rise to losses, quality and
reliability problems.

Over the years, the Reed Switch has shrunk in size from approximately 50 mm
(2 inches) to 3.9 mm (0.153 inches) or less. These smaller sizes have opened up
many more applications particularly in RF and fast time domain requirements.

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

ELECTRICAL & MECHANICAL BENEFITS

Ability to switch up to 10,000 Volts
Ability to switch currents up to 5 Amps
Ability to switch or carry as low as 10 nanoVolts without signal loss
Ability to switch or carry as low as 1 femtoAmp without signal loss
Ability to switch or carry up to 7 GigaHz with minimal signal loss
Isolation across the contacts up to 10

Ohms

Contact resistance (on resistance) typical 50 milliOhms (mW)
In its off state it requires no power or circuitry
Ability to offer a latching feature
Operate time in the 100 ms to 300 ms range
Ability to operate at extreme temperature ranges from –55°C to 200°C
Ability to operate in all types of environments including air, water, vacuum, oil,
fuels, and dust laden atmospheres
Ability to withstand shocks up to 200 G
Ability to withstand vibration environments of 50 Hz to 2000 Hz at up to 30 G
Long life with no wearing parts, load switching under 5 Volts at 10 mA, will
operate well into the billions of operations

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)

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

tandex Reed Switches can be customized for your
design needs. Some customization includes sorting

specific magnetic sensitivity pull-in ranges and cutting
and/or bending the Reed contact leads for either
horizontal or vertical surface mount applications or other
special mounting requirements. All GR/GP, KSK and
ORD Reed Switch series with normally open, normally
closed or SPDT switching functions can be customized.
Various different pad layouts, length of soldering pin and
magnetic sensitivity class are standard options when it
comes to customizing a reed switch.

In addition to these standard options, we can also
customize any switch to your own design including many
value add services such as PCB assembly, epoxy sealing,
conformal coating, wire termination and much more.
Custom switches can also be supplied in tape and reel
or other desired packaging. Standex has the expertise
and specialized equipment to ensure the highest quality
during the custom reed switch manufacturing process.

REED SWITCH SELECTION GUIDE

“Standex has the expertise and specialized equipment to
ensure the highest quality during the custom reed switch
manufacturing process.”

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

øD

øC

.5A ref

Form A

(Kent GR, NL, PR Series)

øD

øC

.5A ref

Form A

(Kofu ORD Series)

(Meder KSK-1A Series)

øD

øC

Form C

(Kofu ORT Series)

(Meder KSK-1C Series)

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

SOLUTIONS |

Reed Switches

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.

Super Ultraminiature <8mm

Ultraminiature 9-14mm

Reed Switch Series

KSK-1A04*

KSK-1A80*

MK23-80 (SMD)

GP400*

KSK-1A87

Description

World’s Smallest

Long Life/Close

Professional

Long Life

* Most Used

Flat Lead

Differential

Grade

Dimensions in mm (inches)

A - Overall Length

34.5 (1.358)

35.8 (1.410)

12.3 (0.484)-13.35 (0.525)

54 (2.125)

35.7 (1.405)

B - Glass Length Max.

3.95 (0.155)

7.0 (0.275)

10.0 (0.393)

C - Glass Dia. Max.

1.5 (0.059)

1.8 (0.070)

1.9 (0.075)

2.0 (0.078)

D - Lead Dia.

0.8 (0.031) x 0.15 (0.006) max 0.3 (0.011)

0.3 (0.011)

0.43 (0.017)

0.4 (0.015)

Specifications

FORM A

Pull-In Range

5-30 AT

10-40 AT

7-30 AT

10-40 AT

Rated Power Max.

10W

Switching Voltage

30VDC

170VDC

180VDC

200VDC

Switching Current

0.3A DC

0.5A DC

0.5A DC/AC

0.4A DC

Highlights
UL Certificate NRNT2/8.E156887

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

Ultraminiature

9-14mm

Super Ultraminiature

<8mm

Approval

Ultraminiature 9-14mm

Reed Switch Series

MK23-87 (SMD)

KSK-1A35

MK23-35 (SMD)

KSK-1A35/1*

KSK-1A31

Description

Long Life

Flat Lead

Mini/ Flat Lead

Miniature

* Most Used

High Voltage

Mercury

Dimensions in mm (inches)

A - Overall Length

14.9 (0.586)-16.6 (0.653)

34.5 (1.358)

15.75 (0.620)-19.9 (0.775)

34.5 (1.358)

41.0 (1.614)

B - Glass Length Max.

10.0 (0.393)

10.5 (0.413)

11.0 (0.433)

C - Glass Dia. Max.

2.0 (0.078)

2.1 (0.082)

2.5 (0.098)

D - Lead Dia.

0.4 (0.015)

1.2 (0.047) x 0.2 (0.008)

0.5 (0.019)

Specifications

FORM A

Pull-In Range

10-40 AT

10-30 AT

10-40 AT

Rated Power Max.

10W

20W

50W

Switching Voltage

200VDC

500VDC

Switching Current

0.4A DC

1A DC

2.0A DC

Highlights
UL Certificate NRNT2/8.E156887

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

SOLUTIONS |

Reed Switches

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.

Ultraminiature

9-14mm

Approval

Ultraminiature 9-14mm

Reed Switch Series

KSK-1A46

MK23-46 (SMD)

GP501*

KSK-1A66*

KSK-1E66

Description

High

High Automotive Grade

Latching

* Most Used

Differential

Stability

High Automotive Grade

Dimensions in mm (inches)

A - Overall Length

44.3 (1.744)

16.9 (0.665)-18.55 (0.730)

54 (2.125)

44.3 (1.744)

B - Glass Length Max.

12.0 (0.472)

12.7 (0.5)

14.0 (0.551)

C - Glass Dia. Max.

2.0 (0.078)

2.3 (0.090)

2.2 (0.086)

D - Lead Dia.

0.5 (0.019)

0.45 (0.017)

0.5 (0.019)

Specifications

FORM A

FORM E

Pull-In Range

10-40 AT

10-35 AT

10-40 AT

30-40 AT

Rated Power Max.

10W

Switching Voltage

200VDC

180VDC

100VDC

Switching Current

0.5A DC

0.5A DC/AC

0.5A DC

Highlights
UL Certificate NRNT2/8.E156887

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

Ultraminiature 9-14mm

Reed Switch Series

KSK-1A66/3*

MK23-66 (SMD)

KSK-1B90U*

KSK-1C90U*

KSK-1C90F

Description

High

High-Grade

Normally Closed

Changeover

* Most Used

Performance

Automotive

NC Dog Leg Bend

Dimensions in mm (inches)

A - Overall Length

44.3 (1.744)

18.8 (0.740)-20.55 (0.809)

55.1 (2.169)

54.5 (2.145)

B - Glass Length Max.

14.0 (0.551)

C - Glass Dia. Max.

2.2 (0.086)

2.54 (0.1)

D - Lead Dia.

0.5 (0.019)

Specifications

FORM A

FORM B

FORM C

Pull-In Range

10-40 AT

15-45 AT

Rated Power Max.

10W

Switching Voltage

200VDC

180VDC

175VDC

Switching Current

0.5A DC

Highlights
UL Certificate NRNT2/8.E156887

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

SOLUTIONS |

Reed Switches

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

Ultraminiature 9-14mm

Reed Switch Series

MK23-90 (SMD)

GP560*

PR560

Description

Changeover

High

AC Line

* Most Used

NC Dog Leg Bend

Stability

Voltage

Dimensions in mm (inches)

A - Overall Length

24.9 (0.980)-25.9 (1.019)

54 (2.125)

B - Glass Length Max.

14.0 (0.551)

14.2 (0.559)

C - Glass Dia. Max.

2.54 (0.1)

2.3 (0.090)

D - Lead Dia.

0.5 (0.019)

0.6 (0.023)

Specifications

FORM C

FORM A

Pull-In Range

15-45 AT

10-50 AT

20-40 AT

Rated Power Max.

10W

Switching Voltage

175VDC

200VDC

100VDC/250VAC

Switching Current

0.5A DC

1.0A DC/AC

Highlights
UL Certificate NRNT2/8.E156887

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

Miniature 16-21mm

Reed Switch Series

KSK-1A55

KSK-1A82

GR100

NL126

PR126

Description

Lamp Load

High Current

Medium Power

Lamp

Line

* Most Used

Professional Grade

Load

Voltage

Dimensions in mm (inches)

A - Overall Length

44.1 (1.736)

54 (2.125)

B - Glass Length Max.

16.5 (0.649)

20.3 (0.799)

C - Glass Dia. Max.

2.8 (0.110)

2.5 (0.098)

D - Lead Dia.

0.6 (0.023)

0.7 (0.027)

Specifications

FORM A

Pull-In Range

15-60 AT

30-40 AT

10-40 AT

20-50 AT

Rated Power Max.

50W

120W

10W

50W

70W

Switching Voltage

100VDC

150VDC

100VDC/150VAC

200VDC/150VAC

300VAC/200VDC

Switching Current

0.5A DC

2.0A DC

1.0A DC

1.5A DC/AC

Highlights
UL Certificate NRNT2/8.E156887

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

Approval

High

Power

SPDT

Changeover

Ultraminiature

9-14mm

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

SOLUTIONS |

Reed Switches

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.

Miniature 16-21mm

Reed Switch Series

KSK-1A53

KSK-1A52

MK23-52 (SMD)

MK23-85 (SMD)

KSK-1A85

Description

High

High Breakdown

Vacuum

* Most Used

Frequency

Voltage

High Power

Dimensions in mm (inches)

A - Overall Length

55 (2.165)

55.4 (2.181)

27.9 (1.098)-29.6 (1.165)

55.5 (2.185)

B - Glass Length Max.

20.5 (0.807)

21.0 (0.826)

C - Glass Dia. Max.

2.8 (0.110)

2.75 (0.108)

D - Lead Dia.

0.6 (0.023)

Specifications

FORM A

Pull-In Range

15-70 AT

15-55 AT

Rated Power Max.

10W

50W

100W

Switching Voltage

200VDC

350VDC

1,000VDC

Switching Current

1.0A DC

0.5A DC

1.0A DC

Highlights
UL Certificate NRNT2/8.E156887

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

Approval

High

Power

High

Voltage

High

Frequency

Normally

Closed

SPDT

Changeover

Miniature 16-21mm

Reed Switch Series

KSK-1B85

KSK-1E85

KSK-1C10

KSK-1A33

KSK-1A83

Description

Normally Closed

Latching

High Current

* Most Used

Latching

Changeover

Flat Lead

Dimensions in mm (inches)

A - Overall Length

55.5 (2.185)

86.1 (3.390)

79.0 (3.110)

81.6 (3.212)

B - Glass Length Max.

21.0 (0.826)

34.3 (1.350)

52.0 (2.047)

53.4 (2.102)

C - Glass Dia. Max.

2.75 (0.108)

5.16 (0.203)

5.4 (0.212)

D - Lead Dia.

0.6 (0.023)

1.01 (0.040)

0.5 (0.019)

2.49 (0.098) x 0.54 (0.213)

Specifications

FORM B

FORM E

FORM C

FORM A

Pull-In Range

15-55 AT

30-55 AT

60-80 AT

80-100 AT

100-150 AT

Rated Power Max.

100W

50W

Switching Voltage

350VDC

500VDC

10,000VDC

7,500VDC

Switching Current

1.0A DC

3.0A DC

Highlights
UL Certificate NRNT2/8.E156887

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

SOLUTIONS |

Reed Switches

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

Approval

High

Power

High

Voltage

High

Frequency

Reed Switch Series

KSK-1A69

KSK-1A54

Description

High Current

High

* Most Used

Flat Lead

Frequency

Dimensions in mm (inches)

A - Overall Length

81.6 (3.212)

B - Glass Length Max.

53.4 (2.102)

C - Glass Dia. Max.

5.4 (0.212)

D - Lead Dia.

2.49 (0.098) x 0.54 (0.213)

1.3 (0.051)

Specifications

FORM A

Pull-In Range

95-170 AT

Rated Power Max.

50W

25W

Switching Voltage

10,000VDC

500VDC

Switching Current

3.0A DC

1.5A DC

Highlights
UL Certificate NRNT2/8.E156887

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S B R A N D

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

SOLUTIONS |

Reed Switches

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.

Ultraminiature

9-14mm

Super Ultraminiature

<8mm

Approval

Super Ultraminiature <8mm

Ultraminiature 9-14mm

Reed Switch Series

ORD213*

ORD311*

ORD211*

ORD219*

ORD312*

Description

* Most Used

Dimensions in mm (inches)

A - Overall Length

35.8 (1.409)

35.7 (1.405)

44.3 (1.744)

B - Glass Length Max.

7.0 (0.275)

10.0 (0.393)

12.0 (0.472)

C - Glass Dia. Max.

1.8 (0.070)

2.0 (0.078)

D - Lead Dia.

0.3 (0.011)

0.33 (0.013)

0.4 (0.015)

0.5 (0.019)

Specifications

FORM A

Pull-In Range

10-40 AT

Rated Power Max.

10W

30W

Switching Voltage

24VAC/DC

100VAC / DC

24VAC/DC

100VAC / DC

200VDC / 100VAC

Switching Current

0.1A DC

0.5A DC

0.1A DC

0.5A DC

Highlights
UL Certificate NRNT2.E70063

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

Ultraminiature 9-14mm

Reed Switch Series

ORD221

ORD2221

ORD228VL*

ORD324*

ORD324H

Description

Offset

High Automotive

High Performance

* Most Used

Long Lead

Grade

Long Lead

Dimensions in mm (inches)

A - Overall Length

44.2 (1.740)

56.7 (2.232)

44.3 (1.744)

56.7 (2.232)

B - Glass Length Max.

13.0 (0.512)

14.0 (0.551)

C - Glass Dia. Max.

2.3 (0.090)

2.2 (0.086)

D - Lead Dia.

0.35 (0.014) x 0.6 (0.024)

0.5 (0.019)

Specifications

FORM A

Pull-In Range

10-30 AT

10-40 AT

Rated Power Max.

10W

Switching Voltage

100VAC / DC

200VDC / 150VAC

Switching Current

0.3A DC

0.5A DC

Highlights
UL Certificate NRNT2.E70063

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

SOLUTIONS |

Reed Switches

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

High

Voltage

High

Power

Approval

Ultraminiature 9-14mm

Miniature 16-21mm

Reed Switch Series

ORT551

ORT551-1

ORD2211

ORD2211H

ORD9215

Description

Changeover

Lamp Load

General Purpose Miniature

* Most Used

NC Dog Leg Bend

Long Lead

Dimensions in mm (inches)

A - Overall Length

56.1 (2.208)

55.1 (2.169)

44.1 (1.736)

57.0 (2.244)

44.1 (1.736)

B - Glass Length Max.

14.0 (0.551)

16.5 (0.649)

17.0 (0.668)

C - Glass Dia. Max.

2.54 (0.1)

2.8 (0.110)

2.7 (0.106)

2.8 (0.110)

D - Lead Dia.

0.5 (0.019)

0.6 (0.023)

0.5 (0.019)

Specifications

FORM C

FORM A

Pull-In Range

10-30 AT

20-40 AT

10-50 AT

Rated Power Max.

50W

10W

Switching Voltage

30VAC / DC

30VDC

100VAC / DC

Switching Current

0.2A DC

0.5A DC inrush 3A

0.4A DC

Highlights
UL Certificate NRNT2.E70063

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

Miniature 16-21mm

Reed Switch Series

ORD229

ORD2210

ORD2210V

Description

Pressurized

Vaccuum

* Most Used

High Breakdown Voltage

Dimensions in mm (inches)

A - Overall Length

55.4 (2.181)

B - Glass Length Max.

21.0 (0.826)

C - Glass Dia. Max.

2.75 (0.108)

D - Lead Dia.

0.6 (0.023)

Specifications

FORM A

Pull-In Range

20-60 AT

15-60 AT

20-60 AT

Rated Power Max.

50W

100W

Switching Voltage

350VDC / 300VAC

200VDC / 150VAC

350VDC / 300VAC

Switching Current

0.7A DC/ 0.5A AC

1.0A DC/ 0.7A AC

1.0A DC

Highlights
UL Certificate NRNT2.E70063

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

R E E D S W I TC H E S

S TA N D E X

E L E C T R O N I C S J A PA N B R A N D

ORD/ORT switches are measured with Standex Electronics
Japan (KOFU) standard coils. Pull-In value is measured with
tolerances of +/-2AT

Ultraminiature

9-14mm

SPDT

Changeover

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

|Strong.

tandex Electronics incorporates our magnetic reed switches into a wide variety of custom proximity
sensors and switches. The reed sensors come in hundreds of different sizes and shapes to meet

a multitude of different application requirements. Customers have the opportunity to work with our
engineers to design or select the best packaging concept that will line up with their application.

Our unique and patented production process allows us to produce not only very small reed switches,
but when we incorporate these into proximity sensors the result is a small sensor with big performance
impact.

These ultra-miniature components allow big improvements in the performance of diverse products
within medical devices, security systems, safes, and industrial control applications.

“Complex problems deserve custom solutions”

CUSTOM SENSORS

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

|Strong.

That’s

standexelectronics.com

magnetoresistive

(AMR, GMR & TMR)

Highest sensitivity

Very low power consumption

High accuracy over wide

temperature range

TYPES OF SENSORS

Proximity

Linear

Angular

Speed

Fluid Level

Fluid Flow

inductive

Non contact metal detection

Ideal in applications with

small changes in position

Solid-state reliability

TYPES OF SENSORS

Proximity

Metal Detection

capacitive

Continuous analog output

for fluid level sensing

Solid state solution with

no moving parts

Capable of working over a

wide temperature range

TYPES OF

SENSORS

Fluid Level

combo

Combine any of our

sensing technologies and

temperature together for

multi-sensing/smart sensing

TYPES OF SENSORS

Various technologies

conductive

Solid state reliability

Measure fluid

quality (WIF,

Salinity, etc.)

Patented false full and

electrolysis protection

TYPES OF SENSORS

Fluid Level

Fluid Quality

reed

No power required

Reliable 2-wire device

High-end sensing applications

World leader in reed technology/applications

TYPES OF SENSORS

Proximity

Pressure Differential

Push Button

Metal Detection

Fluid Flow

Fluid Level

hall effect

Advanced outputs over reed on/off

Ideal for speed sensing

Power consumption in low mA

TYPES OF SENSORS

Proximity

Linear

Angular

Speed

Fluid Level

Fluid Flow

manufacturing

engineering

testing +

tooling

quality/

certifications

Lean Manufacturing Principles

Thermoplastic & Thermoset Molding

Low Pressure Molding (Hot Melt)

Laser Welding

Plasma Surface Treatment

Plastic Injection Molding

Potting – 2 Component

Reed Switch Manufacturing

Stainless Steel Fabrication

SMT Line with Pick & Place, Reflow

& AOI

Selective Soldering

Wire Harness Processing

3-D CAD Modeling & Printing

3-D Magnetic Sensor Mapping

Mechanical Design & Packaging

Rapid Prototyping

Magnetic Simulation Software

Mechanical, Thermal & FEA Analysis

Plastic Mold Flow Simulation

APQP Project Management

2-D/3-D Micro Focus X-ray Inspection

Full Load & Temperature Rise Testing

Digital Microscopic Inspection

MIL-STD-202 In-House Qualification

Testing

Mechanical, Shock & Vibration

Burn-In & Life Testing

Thermal Shock & Temperature Cycling

Humidity, Salt Fog, & Solderability

Moisture Resistance & Seal Testing

Complete, In-House Machine Shop

Reed Switch Parametric Testing

Custom Sensor Test System Design

& Build

AS9100 Certified

ISO9001 Certified

TS16949 Certified

UL & ATEX Certified

ITAR Compliance

IP67 Compliance

Regulatory Agency Approvals

PPAP & First Article Inspection

ALTERNATIVE ENERGY

AUTOMOTIVE/TRANSPORTATION

AEROSPACE/MILITARY

HOUSEHOLD/APPLIANCE

FOOD SERVICE

HVAC/R

INDUSTRIAL/POWER DISTRIBUTION

MEDICAL

SMART GRID/METERING

SECURITY/SAFETY

POOL/SPA

ELECTRIC POWER/UTILITIES

TEST & MEASUREMENT

We partner, solve, and deliver

custom engineered solutions using the appropriate advanced sensing

technology to meet the demands of our customers. Our versatile engineering expertise in magnetic sensing

technologies and custom packaging allows us to be a one-stop-shop for your sensing requirements.

PARTNER

SOLVE

DELIVER

1.866.782.6339

standexelectronics.com

SENSING

TECHNOLOGIES

Customer Focused

Engineering

Solutions

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

8.5

12.3

1.25

0.5

2.1

0.9

6.7

8.5

9.7

1.25

0.65

2.1

1.1

2.2

5.5 (Form A)
7.0 (Form B)

1.6 (Form A)
2.5 (Form B)

0.1

0.75

7-21

13-29.6

Ø 1.8-2.5

2.2

1.95

6.9

6.4

0.1

0.8

MK17 -B - 0

Surface Mount (SMD)

1 2

Rated Power Max. 10W/170VDC/0.25A | Operating Range 10-40 AT | Contact Form A

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, ...+5AT increments

Highlights

Lead Design:

1 (Axial), 2 (Gull-Wing), 3 (J-Lead)

•  On/Off control switch, position detection
•  Portable medical device, white goods, telecomm, security
•  Supplied in tape and reel according to IEC 286/part 3
•  Axial, Gull-Wing or J-lead, UL

MK24 -B - 0 - OE

Surface Mount (SMD)

1 2 3

Rated Power Max. 3W/30VDC/0.3A | Operating Range 5-30 AT | Contact Form A, B

Sensitivity Range AT: A=5-10, B=10-15, C=15-20, D=20-25, +5AT spans

Highlights

Lead Design:

1 (Axial), 2 (Gull-Wing), 3 (J-Lead)

Option:

Contact Form B (Normally Closed)

•  On/Off control switch, position detection
•  Portable medical device, white goods, telecomm, security
•  Supplied in tape and reel according to IEC 286/part 3
•  Worlds smallest SMD reed sensor

MK31 -B - 3

Surface Mount (SMD)

1 2

Rated Power Max. 3W/30VDC/0.3A | Operating Range 5-30 AT | Contact Form A

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, ...+5AT increments

Highlights

Lead Design:

3 (J-Lead)

•  On/Off control switch, position detection
•  Portable medical device, white goods, telecomm, security
•  Supplied in tape and reel according to IEC 286/part 3
•  J-lead, UL

Values depend on switch model (xxx)

MK23 -000 - 0 - 0

Surface Mount (SMD)

1 2 3

Rated Power Max. 100W/1000VDC/1A | Operating Range 10-60 AT | Contact Form A, C

Switch Model:

35, 46, 52, 66, 80, 85, 87, 90 (Form C), 501

Highlights

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, ...+5AT increments

Lead Design:

1 (Axial), 2 (Gull-Wing), 5 (Helix)

•  On/Off control switch, position detection
•  Telecomm, white goods, industrial, security
•  Supplied in tape and reel according to IEC 286/part 3
•  Axial, Gull-Wing, inverse Gull-Wing, or helix lead, UL

Normally

Closed

Super Ultraminiature

<8mm

Approval

Tape &

Reel

Best

Value

High

Voltage

Industrial

Security

Telecomm

White

Goods

Medical

REED SENSORS

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

2.95

11.6

15.6

2.3

0.2

1.2

0.1

19.5

11.6

15.6

2.3

0.6

0.1

2.3

12.7

18.1

0.55

0.37

2.75

Ø 2.3

19.5

2.5 (Form A)

3.75 (Form B)

0.1

2.5

0.7

SOLUTIONS |

Reed Sensors

are possible, consult the factory for more info. We reserve the right to make any changes according to technological progress or further developments. All product images are scaled 1:1 unless otherwise noted.

R E E D S E N S O R S

S TA N D E X

E L E C T R O N I C S B R A N D

MK22 -B - 0

Surface Mount (SMD)

1 2

Rated Power Max. 20W/200VDC/1.0A | Operating Range 10-30 AT | Contact Form A

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, ...+5AT increments

Highlights

Lead Design:

1 (Axial), 2 (Short Gull-Wing), 4 (Long Gull-Wing)

•  On/Off control switch, position detection
•  Portable medical device, white goods, telecomm, security
•  Supplied in tape and reel according to IEC 286/part 3
•  Axial or Gull-Wing lead, UL

MK16 -B - 0

Surface Mount (SMD)

1 2

Rated Power Max. 10W/200VDC/0.5A | Operating Range 10-60 AT | Contact Form A

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, ...+5AT increments

Highlights

Lead Design:

1 (Axial), 2 (Gull-Wing)

MK23 -501-B - 0 “Helix”

Surface Mount (SMD)

1 2

Rated Power Max. 10VA/200VDC/0.5A | Operating Range 7-30 AT | Contact Form A

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, E=25-30

Highlights

Lead Design:

5 (Helix)

•  On/Off control switch, position detection
•  Telecomm, white goods, industrial, security
•  Supplied in tape and reel according to IEC 286/part 3
•  Axial or Helix lead, UL

Normally

Closed

Ultraminiature

9-14mm

Approval

Tape &

Reel

Best

Value

Industrial

Security

Telecomm

White

Goods

Medical

MK15 -B - 0

Surface Mount (SMD)

1 2

Rated Power Max. 10W/200VDC/0.5A | Operating Range 10-60 AT | Contact Form A, B

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, ...+5AT increments

Highlights

Lead Design:

1 (Axial), 2 (Gull-Wing)

•  On/Off control switch, position detection
•  Telecomm, white goods, industrial, security
•  Supplied in tape and reel according to IEC 286/part 3
•  Axial or Gull-Wing lead, high power switch, UL

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

16.8

32.4

3.2

8.65

12.65

25.4

19.05

6.35 3.2

0.9

Ø0.8

Ø3.26

3.81

6.35

18.8

3.7

0.6

3.4

0.25

13.9

5.9

2.9

10.9

3.1

7.5

SOLUTIONS |

Reed Sensors

R E E D S E N S O R S

S TA N D E X

E L E C T R O N I C S B R A N D

MK04 - 1 X 00 0 - 0000 W

Screw Flange

1 2 3 4 5 Termination

Rated Power Max. 10W/400VDC/0.5A | Operating Range 10-60 AT

Contact Quantity:

Highlights

Position, level,

and end limit

sensing

Contact Form:

A, B, C

Switch Model:

66, 90

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, ...+5AT increments

Cable Length (mm): 200, 300, 500, 1000, 1500, 2000, 3000, 5000

*Magnet sold separate

Scale 1:1.5

MK01 -X

Surface Mount (SMD)

Rated Power Max. 10VA/200VDC/0.5A | Operating Range 10-60 AT | Contact Form A, B, C

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, E=25-30 (Form A,B)

Highlights

H=15-20, I=20-25, K=25-30 (Form C)

•  On/Off control switch, position detection
•  Telecomm, white goods, industrial, security
•  Supplied in tape and reel according to IEC 286/part 3
•  J-Lead, high power switch, UL

MK02 /0 - 1 X 00 - 0000 X

Metal Detection

1 2 3 4 5 Termination

Rated Power Max. 10W/200VDC/0.5A | Operating Range 4.5-15 MM

Operation Series:

0, 1, 2, 3, 4

Highlights

Contact Quantity:

Contact Form:

A, B, C

Switch Model:

66, 90

Cable Length (mm): 200, 300, 500, 1000, 1500, 2000, 3000, 5000

• Integrated magnet (Only MK02/4 requires ext. magnet),
• Front or above operation

Scale 1:1.5

MK28 - 1 X - 000 X

Metal Detection

1 2 3 Termination

Rated Power Max. 10W/175VDC/0.5A | Operating Range Exact

Contact Quantity:

Highlights

Contact Form:

A, B, C

Switch Model:

Cable Length (mm): 500

• Vane operated screw mount proximity/motion sensor (integrated magnet)
• Automotive, industrial automation equipment, robotics, harsh environments

Scale 1:1.5

Normally

Closed

SPDT

Changeover

Approval

Tape &

Reel

Automotive

Hazardous

Environments

IP67

Rated

Industrial

Security

Telecomm

White

Goods

Medical

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

13.9

5.9

2.9

10.8

3.1

12.45

1.55

7.5

14.9

6.9

3.0

11.5

Ø4.06

19.4

5.9

2.9

13.4

5.1

7.5

5.6

6.5

Ø4.4

3.3

Ø3.3

SOLUTIONS |

Reed Sensors

R E E D S E N S O R S

S TA N D E X

E L E C T R O N I C S B R A N D

MK05 - 1 X 00 0 - 0000 W

Screw Flange

1 2 3 4 5 Termination

Rated Power Max. 10W/400VDC/0.5A | Operating Range 10-60 AT

Contact Quantity:

Highlights

Position, level,

and end limit

sensing

Contact Form:

A, B, C

Switch Model:

66, 90

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, ...+5AT increments

Cable Length (mm): 200, 300, 500, 1000, 1500, 2000, 3000, 5000

*Magnet sold separate

Scale 1:1.5

MK12 - 1 X 00 0 - 0000 W

Screw Flange

1 2 3 4 5 Termination

Rated Power Max. 10W/400VDC/0.5A | Operating Range 10-60 AT

Contact Quantity:

Highlights

Position, level,

and end limit

sensing

Contact Form:

A, B, C

Switch Model:

66, 90

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, ...+5AT increments

Cable Length (mm): 200, 300, 500, 1000, 1500, 2000, 3000, 5000

*Magnet sold separate

Scale 1:1.5

MK13 - 1 X 00 0 - 0000 W

Screw Flange

1 2 3 4 5 Termination

Rated Power Max. 10W/400VDC/0.5A | Operating Range 10-60 AT

Contact Quantity:

Highlights

Position, level,

and end limit

sensing

Contact Form:

A, B, C

Switch Model:

66, 90

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, ...+5AT increments

Cable Length (mm): 200, 300, 500, 1000, 1500, 2000, 3000, 5000

*Magnet sold separate

Scale 1:1.5

Normally

Closed

SPDT

Changeover

Approval

Best

Value

Industrial

Security

White

Goods

MK26 - 1 X 00 0 - 0000 W

Screw Flange

1 2 3 4 5 Termination

Rated Power Max. 100W/1000VDC/1.0A | Operating Range 10-60 AT

Contact Quantity:

Highlights

Position, level,

and end limit

sensing

Contact Form:

A, B, C

Switch Model:

66, 90

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, ...+5AT increments

Cable Length (mm): 200, 300, 500, 1000, 1500, 2000, 3000, 5000

Termination:

*Magnet sold separate

Scale 1:1.5

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

Ø3

2.7

7.5

2.7

2.5

4.9

Ø4.5

28.5

6.25

3.4

Ø3.25

4.72

11.45

4.55

9.5

SOLUTIONS |

Reed Sensors

R E E D S E N S O R S

S TA N D E X

E L E C T R O N I C S B R A N D

MK20 /1- X - 000 W

Cylindrical

1 2 Termination

Rated Power Max. 10W/30VDC/0.25A | Operating Range 10-60 AT

Contact Quantity:

Highlights

3.0mm

Position, level,

and end limit

sensing

Contact Form:

Switch Model:

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, E=25-30

Cable Length (mm): 100, 200, 300, 500

*Magnet sold separate

MK27 - 1 A 00 0 - 000 W

Screw Flange

1 2 3 4 5 Termination

Rated Power Max. 100W/1000VDC/1.0A | Operating Range 10-60 AT

Contact Quantity:

Highlights

Position, level,

and end limit

sensing up to

40mm

Contact Form:

Switch Model:

66, 85

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, ...+5AT increments

Cable Length (mm): 500

*Magnet included

Scale 1:2

MK21 /X- 1 X 00 0 - 0000 W

Screw Flange

1 2 3 4 5 6 Termination

Rated Power Max. 100W/1000VDC/1.0A | Operating Range 10-60 AT

Case Version:

P=Potted, M=Molded (M = High Temp +150°C)

Highlights

Position, level,

and end limit

sensing

Contact Quantity:

Contact Form:

A, B, C

Switch Model:

66, 90

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, ...+5AT increments

Cable Length (mm): 500, 1000, 1500, 2000, 3000, 5000

*Magnet sold separate

Scale 1:1.5

External

Magnet Included

MK20 /2- X - 000 W

Cylindrical

1 2 Termination

Rated Power Max. 3W/30VDC/0.25A | Operating Range 10-30 AT

Contact Quantity:

Highlights

2.7mm

Position, level,

and end limit

sensing

Contact Form:

Switch Model:

Sensitivity Range AT: B=10-15, D=20-25

Cable Length (mm): 100, 200, 300, 500

*Magnet sold separate

High

Voltage

High Temp

Resistant

IP67

Rated

Normally

Closed

SPDT

Changeover

Super Ultraminiature

< 8mm

Approval

Automotive

HVAC/R

Industrial

Hazardous

Environments

Security

White

Goods

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

25.5

Ø4

25.5

Ø5.8

Ø5

Ø4.6

100

Ø18

Ø4.5

Ø21.6

Ø12.8

Ø11.4

SOLUTIONS |

Reed Sensors

R E E D S E N S O R S

S TA N D E X

E L E C T R O N I C S B R A N D

MK14 - 1 X 00 0 - 0000 W

Cylindrical

1 2 3 4 5 Termination

Rated Power Max. 10W/400VDC/0.5A | Operating Range 10-60 AT

Contact Quantity:

Highlights

4.0mm

Position, level,

and end limit

sensing

Contact Form:

A, B, C

Switch Model:

66, 90

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, ...+5AT increments

Cable Length (mm): 200, 300, 500, 1000, 1500

*Magnet sold separate

MK03 - 1 X 00 0 - 0000 W

Cylindrical

1 2 3 4 5 Termination

Rated Power Max. 10W/400VDC/0.5A | Operating Range 10-60 AT

Contact Quantity:

Highlights

5.75mm

Position, level,

and end limit

sensing

Contact Form:

A, B, C

Switch Model:

66, 90

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, ...+5AT increments

Cable Length (mm): 200, 300, 500, 1000, 1500, 2000, 3000, 5000

*Magnet sold separate

MK18 - X - 0000 W

Cylindrical

1 2 Termination

Rated Power Max. 10W/200VDC/0.5A | Operating Range 10-60 AT

Contact Quantity:

Highlights

5.0mm

Position, level,

and end limit

sensing

Contact Form:

Switch Model:

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, E=25-30

Cable Length (mm): 100, 200, 300, 500, 1000, 1500

*Magnet sold separate

Normally

Closed

SPDT

Changeover

Ultraminiature

9-14mm

Approval

Industrial

Security

White

Goods

MK08 - 1 X 00 - 0000 W

Cylindrical

1 2 3 4 Termination

Rated Power Max. 60W/400VDC/1.0A | Operating Range 10-60 AT

Contact Quantity:

Highlights

Oil resistant wire

Operate

-40°C to +130°C

Contact Form:

A, B

Switch Model:

66, 85

Cable Length (mm): 200, 300, 500, 1000, 1500

(KEMA 00ATEX1112 X, IECEx KEM09.0006 X according to DIN EN 60062)

Scale 1:3

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

39.5

Ø6.5

31.5

2.5

Thread M8 x 0.75, SW 12

Ø13

Thread M8 x 0.75, SW 12

M8x1.25

5.5

SW10

Dia.: M6, M10, M12 x 1.0 inch, M8
x 1.25 inches

25 (M5)
50 (M8)

SW7 (M5)
SW13 (M8)

M5x0.5
M8

SOLUTIONS |

Reed Sensors

R E E D S E N S O R S

S TA N D E X

E L E C T R O N I C S B R A N D

MK07 - 1 X 00 0 - 0000 W

Threaded Barrel

2 3 4 5 6 Termination

Rated Power Max. 10W/200VDC/0.5A | Operating Range 10-60 AT

Case, Thread Size:

Plastic M8

Highlights

Position, level,

and end limit

sensing

Contact Quantity:

Contact Form:

A, B

Switch Model:

66, 85, 90

Sensitivity Range AT: C=15-20, D=20-25, E=25-30, ...+5AT increments

Cable Length (mm): 200, 300, 500, 1000, 1500

*Magnet sold separate

Scale 1:1.5

Normally

Closed

SPDT

Changeover

Approval

IP67

Rated

ATEX

Certified

IECEx

Certified

High

Voltage

Hazardous

Environments

Industrial

Security

Telecomm

White

Goods

MK11 - 1 X 00 0 - 0000 W

Threaded Barrel

2 3 4 5 6 Termination

Rated Power Max. 10W/200VDC/0.5A | Operating Range 10-60 AT

Case, Thread Size:

Stainless Steel M5 or M8

Highlights

Position, level,

and end limit

detection and

sensing

adjustment

Contact Quantity:

Contact Form:

A, B, C

Switch Model:

66, 85, 90

Sensitivity Range AT: C=15-20, D=20-25, E=25-30, ...+5AT increments

Cable Length (mm): 200, 300, 500, 1000, 1500, 2000, 3000, 5000

*Magnet sold separate

Scale 1:1.5

MK11 /B00- 1 X 00 0 - 0000 W

Threaded Barrel

1 2 3 4 5 6 Termination

Rated Power Max. 100W/1000VDC/1.0A | Operating Range 10-60 AT

Case, Thread Size:

B=Brass, 6=M6, 8=M8, 10=M10, 12=M12

Highlights

Position, level,

and end limit

detection and

sensing

adjustment

Contact Quantity:

Contact Form:

A, B, C

Switch Model:

66, 85, 90

Sensitivity Range AT: C=15-20, D=20-25, E=25-30, ...+5AT increments

Cable Length (mm): 200, 300, 500, 1000, 1500, 2000, 3000, 5000

*Magnet sold separate

Scale 1:3

MK11 /M8- 1 X 00 0 - 0000 W

Threaded Barrel

1 2 3 4 5 Termination

Rated Power Max. 100W/1000VDC/1.0A | Operating Range 10-60 AT

Case, Thread Size:

Plastic M8

Highlights

Position, level,

and end limit

detection and

sensing

adjustment

Contact Quantity:

Contact Form:

A, B, C

Switch Model:

66, 85, 90

Sensitivity Range AT: C=15-20, D=20-25, E=25-30, ...+5AT increments

Cable Length (mm): 200, 300, 500, 1000, 1500, 2000, 3000, 5000

*Magnet sold separate

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

Ø29.7

36.8

Ø39.5

Ø25.5

Sheet 1-4mm max.

12.06 - 28.58

10.16 - 25.4

3.3-5.72

2.9

3.3 - 3.81

Ø 0.3

0.4

30.0

10.4

18.25

5.8

12.0

2.54

3.8

0.25

0.5

SOLUTIONS |

Reed Sensors

R E E D S E N S O R S

S TA N D E X

E L E C T R O N I C S B R A N D

Normally

Closed

SPDT

Changeover

ATEX

Certified

Approval

HVAC/R

Hazardous

Environments

Industrial

Security

Telecomm

White

Goods

MK06 -00-X

Other Packaging

1 2

Rated Power Max. 10W/170-200VDC/0.25-0.5A | Operating Range 10-60 AT

Package Length (mm): 4=12.06, 5=14.30, 6=17.24,

Highlights

On/Off control

switch, position

detection

1inch (2.54mm)

pin spacing

7=19.78, 8=22.32, 10=28.50

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, E=25-30 (Form A,B)

H=15-20, I=20-25, K=25-30 (Form C)

Switch Model:

66, 87, 90 (Form E Latching option)

Scale 1:1.5

MK09 - 1 A 00 - 0

Other Packaging

1 2 3 4

Rated Power Max. 10W/180VDC/1.25A | Operating Range 10-30 AT

Highlights

Contact Quantity:

Contact Form:

A, B, C

Switch Model:

66, 84, 90

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, E=25-30

*Reed sensor integrated into a standard Hirschmann connector

MK25 - 1 X 00 - 0000 W

Other Packaging

1 2 3 4 Termination

Rated Power Max. 10W/400VDC/0.5A | Push Button Reed Sensor/Contactless Switching

Contact Quantity:

Operate -40°C to +60°C

(KEMA 05ATEX1206 X
according to EN 60062)

Highlights

Contact Form:

A, B, C

Switch Model:

46, 90

Cable Length (mm): 200, 300, 500, 1000, 1500, 2000, 3000, 5000

*Button Accessories Sold Separate

Scale 1:1.5

Button plates, emergency stop buttons, etc. can be provided with laser inscriptions as required. The
information is burnt into the surface and thus, unlike with print-inscribed elements, is very durable.

MK10 -C - 270

Other Packaging

1 2

Rated Power Max. 10W/170VDC/0.25A | Operating Range 10-40 AT | Contact Form A

Sensitivity Range AT: B=10-15, C=15-20, D=20-25, E=25-30

Highlights

Resistance Ω:

270 (others available)

•  On/Off control switch, position detection
•  Level sensing applications
•  Excellent for low power operation

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

Reed Switch requires either a permanent
magnet or magnetic field in order to

activate the switch, thus it is commonly called a
magnetic reed switch. Magnets have reversible
and irreversible demagnetization specifications.
Engineers should consider shock, vibration,
strong external magnetic fields as well as high

temperatures in their designs. All these factors
influence the magnetic force and the long term
stability in different ways.
Preferably the magnet is mounted on the moving
part of the application. Professional tuning of the
magnet and reed switch pairing can improve the
functionality of the whole sensor-magnet system.
We offer permanent magnets in various standard
housings for quick mounting or as is.

We offer the following types of permanent magnets:
• AlNiCo (Aluminum Nickel, Cobalt, Iron and

Titanium)

• SmCo (Samarium–Cobalt) & NdFeB

(Neodymium) - rare earth

• Hf - hard ferrite
These are some of our most widely used models,
others available as required.

LOW

HIGH

costs

Ferrite

AlNiCo

NdFeB

SmCo

energy (WxH max.)

Ferrite

AlNiCo

SmCo

NdFeB

working temperature

NdFeB

Ferrite

SmCo

AlNiCo

corrosion - resistant

NdFeB

SmCo

AlNiCo

Ferrite

opposing field - resistant

AlNiCo

Ferrite

NdFeB

SmCo

mechanical strength

Ferrite

SmCo

NdFeB

AlNiCo

temperature coefficient

AlNiCo

SmCo

NdFeB

Ferrite

LOW

HIGH

Hard Ferrite

Hf 28/26 2.6 x 2.6 x 4.0
Hf 28/26 3.5 x 1.8 x 1.8
Hf 28/26 6.7 x 6.7 x 2.7

AlNiCo

AlNiCo Ø2.5 x 12.7
AlNiCo Ø3.0 x 12.0
AlNiCo Ø4.0 x 19.0
AlNiCo Ø5.0 x 4.0
AlNiCo Ø5.0 x 20.0
AlNiCo Ø5.5 x 22.0
AlNiCo Ø7.5 x 27.0
AlNiCo 3.2 x 3.2 x 19.0

Rare Earth

SmCo5 Ø1.9 x 3
SmCo5 Ø3 x 4
NdFeB N35 Ø4 x 19
NdFeB N35H Ø4 x 19
NdFeB N45 Ø4 x 19
NdFeB 250/175H Ø6 x 10
NdFeB 250/175H 10 x 5 x 1.9

Dimensions in mm

MAGNETS

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

SOLUTIONS |

Magnets

M02

M04

M13

M05

M21/P(1,2)

Dimensions in mm (inches)

L - 32.4 (1.275)

L - 23 (0.905)

L - 23.2 (0.913)

L - 28.6 (1.125)

W - 16.7 (0.657)

W - 13.9 (0.547)

W - 19.6 (0.771)

W - 19 (0.748)

H - 10 (0.393)

H - 5.9 (0.232)

H - 6.35 (0.25)

Magnets in Housings

M27

M11(B)

M11(S)

M11(P)

M03

Dimensions in mm (inches)

L - 50.0 (1.969)

L - 38 (1.496)

L - 25 (0.984)

L - 38 (1.496)

L - 25 (0.984)

W - 20.0 (0.787)

Ø - M6-M12

Ø - M5 x 0.5 / M8 x 0.5

Ø - M8 x 1.25

Ø - M5 x 0.5

H - 10.0 (0.394)

Magnets in Housings

Scale 1:2.25

Scale 1:1.5

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

MK03

-1A66

-500W

> 1.70

15.0 6.5

9.3

8.5

8.5 17.5 8.0 11.4 10.1 10.1

MK03

-1A66

-500W

> 2.30

13.0 4.4

7.4

7.2

7.2 16.5 6.5

9.9

9.5

MK03

-1A66

-500W

> 2.70

11.0 4.0

5.7

6.5

6.5 14.5 5.5

8.5

9.0

MK03

-1A66

-500W

> 3.10

10.0 3.5

4.5

5.7

5.7 13.5 5.0

8.0

8.5

MK04

-1A66

-500W

> 1.70

15.0 6.5

9.3

8.5

8.5 17.5 8.0 11.4 10.1 10.1

MK04

-1A66

-500W

> 2.30

13.0 4.4

7.4

7.2

7.2 16.5 6.5

9.9

9.5

MK04

-1A66

-500W

> 2.70

11.0 4.0

5.7

6.5

6.5 14.5 5.5

8.5

9.0

MK04

-1A66

-500W

> 3.10

10.0 3.5

4.5

5.7

5.7 13.5 5.0

8.0

8.5

MK05

-1A66

-500W

> 1.70

15.0 6.5

9.3

8.5

8.5 17.5 8.0 11.4 10.1 10.1

MK05

-1A66

-500W

> 2.30

13.0 4.4

7.4

7.2

7.2 16.5 6.5

9.9

9.5

MK05

-1A66

-500W

> 2.70

11.0 4.0

5.7

6.5

6.5 14.5 5.5

8.5

9.0

MK05

-1A66

-500W

> 3.10

10.0 3.5

4.5

5.7

5.7 13.5 5.0

8.0

8.5

MK11/M8

-1A66

-500W

> 1.70

15.0 6.5

9.3

8.5

8.5 17.5 8.0 11.4 10.1 10.1

MK11/M8

-1A66

-500W

> 2.30

13.0 4.4

7.4

7.2

7.2 16.5 6.5

9.9

9.5

MK11/M8

-1A66

-500W

> 2.70

11.0 4.0

5.7

6.5

6.5 14.5 5.5

8.5

9.0

MK11/M8

-1A66

-500W

> 3.10

10.0 3.5

4.5

5.7

5.7 13.5 5.0

8.0

8.5

MK13

-1A66

-500W

> 1.70

15.0 6.5

9.3

8.5

8.5 17.5 8.0 11.4 10.1 10.1

MK13

-1A66

-500W

> 2.30

13.0 4.4

7.4

7.2

7.2 16.5 6.5

9.9

9.5

MK13

-1A66

-500W

> 2.70

11.0 4.0

5.7

6.5

6.5 14.5 5.5

8.5

9.0

MK13

-1A66

-500W

> 3.10

10.0 3.5

4.5

5.7

5.7 13.5 5.0

8.0

8.5

4003004003 / Perm. magnet Ø4 x 19mm
2500000002 / M02
2500000004 / M04

2500000005 / M05
2500000013 / M13
2500000021 / M21

SENSOR ACTIVATION DISTANCES

Reed Sensor

Magnetic

Sensitivity

Position and Movement

Max. Pull-in Distance in mm

Position and Movement

Min. Drop-out Distance in mm

Resulting from position and

movement of the actuator magnet.

All distance data above are
valid for the magnets below:

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

WHT

BLK

WHT

BLK

13.9

5.9

2.9

10.9

3.1

7.5

28.5

6.25

3.4

Ø3.25

4.72

11.45

4.55

9.5

WHT

BLK

12.75

5.5

High Temp

Resistant

Automotive

Food &

Beverage

HVAC/R

Industrial

Marine

Security

Telecomm

White

Goods

MH21- 00 X - 000 W

Screw Flange

1 2 3 Termination

Standard Power 3-24VDC/4mA (V

=12V) | Micro Power 2.5-3.5V/10μA (V

=3.5V)

Power Version:

11 = Standard Power, 10 = Micro Power

Highlights

Function:

Switch, *Latch (

*Standard Power only)

Cable Length (mm): 300, 500, other lengths as needed

MH04- 00 X - 000 W

Screw Flange

1 2 3 Termination

Standard Power 3-24VDC/4mA (V

=12V) | Micro Power 2.5-3.5V/10μA (V

=3.5V)

Power Version:

11 = Standard Power, 10 = Micro Power

Highlights

Function:

Switch, *Latch (

*Standard Power only)

Cable Length (mm): 300, 500, other lengths as needed

MH32- 00 X - 000 W

Screw Flange

1 2 3 Termination

Standard Power 2.7-24VDC/25mA (V

=12V) | Micro Power 2.5-3.5V/10μA (V

=3.5V)

Power Version:

11 = Standard Power, 10 = Micro Power

Highlights

Function:

Bipolar Switch, *Bipolar Latch (

*Standard Power only)

Cable Length (mm): 300, 500, other lengths as needed

tandex Electronics’ Hall Effect Sensor series offer

solid state reliability,

low power consumption

, and consistent activation points over a wide

temperature range in a rugged and environmentally isolated package.
Micro-Power versions operate on 2.5-3.5V battery voltage with only 5μA
average supply current vs. the industry average of 5mA.

Custom options include: output- switch, latch, etc., high temperature resistance,
package design and much more.

HALL EFFECT SENSORS

Stdx-Product-Line-Brochure-Reed-Switch-Sensors-html.html

standexelectronics.com

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