Inorganic Fire Retardant

Encapsulant

Flame Proof

High 

Temperature

Ceramic Housing

Terminals Suitable

For Re-Flow

Soldering

• Fusible safety version available

• Tape and Reel packing available

• Non Inductive style with Aryton - 

Perry winding available 

• 2W to 3W

• R10 to 5K6

SURFACE MOUNT RESISTORS

CERAMIC ENCASED TYPE

HCAS

SERIES

POWER TYPE 

Ceramic Encased Wire 

Wound Resistors

Surface Mount -

Fire Retardant

e : info@htr-india.com

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Rev Date : 22/11/2016

As per  AEC-Q200

C2S 

2W 

11.0 

10.0 

5.3 

7.0 

5.5 

2.25 

  R10 

1K6 

0.8 

4527 

1000

 

 

(±0.8) 

(±0.7) 

(±0.6) 

(±0.7) 

(±0.3) 

(min)

C3S 

3W 

17.0 

16.0 

7.8 

7.0 

5.5 

2.5 

  R10 

5K6 

2.0 

6927  

700

 

 

(±0.8) 

(±0.7) 

(±0.6) 

(±0.7) 

(±0.3) 

(min)

POWER

RATING

70°C

DIMENSIONS (mm)

RESISTANCE 

RANGE

PACKING

NO. OF

PCS

PER REEL

min

HTR

TYPE

IMPORTANT MOUNTING / ASSEMBLY DATA

For the guidance of the design engineer, our applications laboratory has given the recommended pad size and geometry which is shown 
below :

    L 

L

1 

H 

W 

W

1

 T 

max

 

HTR  

 

    DIMENSIONS (mm)

 

TYPE 

A 

B 

C

 

C2S 

3.94 

5.84 

5.21

 

C3S 

3.94 

5.97 

11.94

SIZE

TYPICAL

WEIGHT 

PER PC

(gms)

• For Non Inductive winding, please reduce maximum resistance to one half of value shown.

SURFACE 

MOUNT 

RESISTORS 

CERAMIC EN-

CASED TYPE 

HCAS

PHYSICAL CONFIGURATION

e : info@htr-india.com

www.htr-india.com

Rev Date : 22/11/2016

ELECTRICAL AND ENVIRONMENTAL CHARACTERISTICS / DATA

Power Rating (Rated Ambient Temperature) 

Full Power dissipation at 70°C and linearly 

 

derated to zero at 275°C for C3S / C3FS & at  

 

 

 

160°C for C2S / C2FS (Refer Derating Curve above)

Resistance Tolerances Available 

±10% (K); ±5% (J); ±3% (H); ±2% (G); ±1% (F)

Operating Temperature Range 

-55°C to +160°C (C2S / C2SFS) and -55°C to +275°C 

 

(C3S / C3SFS) with suitable derating as per derating curve

Voltage Rating / Limiting Voltage / Max Working Voltage 

V=   PxR

Voltage Proof / Dielectric Withstanding Voltage 

∆

R ± [0.2% + R05] - 

(based on 1000V rms for 60 secs) 

No flashover or mechanical damage

Insulation Resistance (MIL STD 202F - Test Method 302) 

>1000M (Min)

Short Time Overload (5 x Rated Power for 5 secs) 

∆

R ± [0.2% + R05] - Average

Temperature Co-efficient of Resistance 

<1R0 ±80 ppm/°C

       

<100R ±60 ppm/°C

        

>100R ±90 ppm/°C or ±30 ppm/°C 

 

(Depending on wire selected)

Thermal Shock [-65°C to +125°C, 5 cycles,  

∆

R ± [0.2% + R05] - Average

15 min. at each extreme temperature]
Temperature Rise (Ambient 30°C) 

Refer Temperature Rise Curve shown above

Moisture Resistance (MIL STD 202F - Test Method 106E 

∆

R ± [0.5% + R05] - Average

with step 7b eliminated)
Damp Heat (Steady State) / Humidity 

∆

R ± [0.5% + R05] - Typical

(40°C at 95% R.H for 250 hours)
Endurance - Load Life (70°C with limiting voltage -  

∆

R ± [1.0% + R05] - Average

1.5 hours on / 0.5 hours off for 1000 hours)
Solvent Resistance [IPA for 60 secs ± 10 secs] 

No effect on case filling / marking

PARAMETER/PERFORMANCE TEST & TEST METHOD                            PERFORMANCE REQUIREMENTS

•  

At HTR, a special “Safety Version” is available in HCAS series for resistance values 

≥

10R wherein the resistor will fuse instantaneously 

when mains voltage 220/240V is applied with no flame or explosion. 

• 

For resistance values <10R, the fusing time and suitability must be tested and validated by the buyer for his particular application.

• 

For Tape and Reel packing, add 100% to typical weight per pc given to ascertain gross weight of 

 consignment.

Note: The ceramic cases used may be steatite ceramic or corderite ceramic or high alumina ceramic. Hence, the ceramic cases may be 

off-white or variations of brown and variations of grey; colours which are inherent to these ceramic materials.

Resistance to Soldering Heat (260°C - 270°C for 4 secs) 

 ∆

R ± [0.5% + R05] - Typical

Solderability (MIL STD 202F - Test Method 208F) 

 Must meet the requirements laid down (95% satisfactory coverage)

MECHANICAL SPECIFICATIONS

1. For RoHS version - C2S *

2. For Non Inductive type - N C2S

3. For Tape & Reel packing - C2S TR

4. For Fusible Safety Version -  C2S FS

ORDERING INFORMATION

PARAMETER/PERFORMANCE TEST & TEST METHOD 

 PERFORMANCE REQUIREMENTS

 

Series 

HTR Type 

Packing 

Resistance Value 

Tolerance 

 

HCAS 

C2S / C2S* 

Bulk C2S / C2S* 

10R 

J

 

 

 

Tape & Reel C2STR / C2S*TR 

SURFACE 

MOUNT 

RESISTORS 

CERAMIC EN-

CASED TYPE 

HCAS

e : info@htr-india.com

www.htr-india.com

Rev Date : 22/11/2016