PRODUCTS
 
CARBON FILM FIXED RESISTORS (CF ; RD)
 
Features
 

  • Formed from the crystallization of carbon on ceramic rods, under a high temp. of 1000¢J, making it highly stable.

  • Large range of W value.

  • Widely used as standard parts in consumer electronic appliances.

  • Automated mass production, low price.

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Characteristic Performance
 

Item

Performance
Operating Temp. Range -55¢J ~ +155¢J
Temperature Coefficient

T.C.R.

±450
(PCM/¢J)

-700
(PCM/¢J)

-1,000
(PCM/¢J)

-1,300
(PCM/¢J)
Type

1/8W (1/6W) & 1/4WS

Under 47K£[

51K¡ã100K£[

110K¡ã330K£[

Over 360K£[

1/4W & Over

Under 100K£[

110K¡ã1M£[

1.1M¡ã2.2M£[

Over 2.4M£[
Short Time Overload

Within ±(1%+0.05£[), no evidence of mechanical damage.

Insulation Resistance

104M£[ or more

Dielectric Withstanding Voltage

No evidence of flashover mechanical damage, arcing or insulation breakdown.

Pulse Overload

Within ±(0.75%+0.05£[)

Terminal Strength

No evidence of mechanical damage.

Resistance to Soldering Heat

Within ±(0.5%+0.05£[), no evidence of mechanical damage.

Solderability

Covered with new solder by 95% at least.

Resistance to Solvent

No deterioration of protective coating and markings.

Temperature Cycle

Within ±(1%+0.05£[), no evidence of mechanical damage.

Load Life in Humidity

¡Õ100K£[¡G±3%
¡Ù100K£[¡G±5%

Load Life

¡Õ100K£[¡G±(2%+0.05£[)
¡Ù100K£[¡G±3%
 
Derating Curve
 

 
Structure & Materials
 

 

No.

 Item Material

1

Lead Wire

Soldered or tinned annealed copper wire.

2

Connection

The lead wire, which is plated with solder, shall be mounted to the caps by welding process.

3

Terminal

Tinned iron cap.

4

Ceramic Core

High alumina ceramic is used.

5

Resistance Element

The resistor element shall consists of carbon film, but use metal film when the resistance is less than 2.2£[.

6

Insulation Coating

Epoxy resin is used.

7

Indication

Color code.

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Dimensions
 

 
Style Dimensions (mm) Max.
Working V.		 Max.
Overload V.		 Resistance Range
L D d H (Min.)
CF 1/8W (1/6W) 3.20 ± 0.20 1.80 ± 0.20 0.40 ± 0.05

28.00 ± 3.00

 250V 400V

2.2£[ ~ 2.2M£[

CF 1/4WS

3.20 ± 0.20 1.80 ± 0.20 0.40 ± 0.05

28.00 ± 3.00

 250V 400V

2.2£[ ~ 2.2M£[

CF 1/4W

6.50 ± 0.50 2.30 ± 0.30 0.50 ± 0.05

28.00 ± 3.00

 300V 600V

2.2£[ ~ 4.7M£[

CF 1/2WS

6.50 ± 0.50 2.30 ± 0.30 0.50 ± 0.05

28.00 ± 3.00

 300V 600V

2.2£[ ~ 4.7M£[

CF 1/2W

9.00 ± 1.00 3.20 ± 0.50 0.60 ± 0.10

28.00 ± 3.00

 350V 700V

2.2£[ ~ 5.1M£[

CF 1WS

9.00 ± 1.00 3.20 ± 0.50 0.60 ± 0.10

28.00 ± 3.00

 350V 700V

2.2£[ ~ 5.1M£[

CF 1W

12.00 ± 1.00 4.50 ± 0.50 0.65 ± 0.10

32.00 ± 3.00

 500V 1000V

2.2£[ ~ 5.1M£[

CF 2WS

12.00 ± 1.00 4.50 ± 0.50 0.65 ± 0.10

32.00 ± 3.00

 500V 1000V

2.2£[ ~ 5.1M£[

CF 2W

15.50 ± 1.00 5.00 ± 1.00 0.70 ± 0.10

35.00 ± 3.00

 750V 1500V

2.2£[ ~ 5.1M£[

CF 3WS

15.50 ± 1.00 5.00 ± 1.00 0.70 ± 0.10

35.00 ± 3.00

 750V 1500V

2.2£[ ~ 5.1M£[

CF 3W

17.50 ± 1.00 16.50 ± 1.00 0.70 ± 0.10

35.00 ± 3.00

 750V 1500V

2.2£[ ~ 5.1M£[

Note: Special resistance range min. 0.1£[, max. 10M£[ (±1%, min. 0.22£[, max. 220K£[), but character is not guaranteed.

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How to Order

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Ex.: CF1/4W-T52-100RJ

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CF 1/4W

¡V

 T52

¡V

 100R J
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Product Style (Type) Rated Power (Watts) ¡@ Form Type ¡@ Resistance Value Resistance Tolerance

 CF

or

RD

  

 

  

 

  

 

  

 

Normal

Small

1/8W

1/4WS

1/4W

1/2WS

1/2W

1WS

1W

2WS

2W

3WS

3W

 
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B :

 Bulk

Txx :

 Taping XXmm

PU :

 Horizontal

PF :

 Vertical

  

 

  

 

  

 
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(R = £[)

E-12 Series

E-24 Series

E-48 Series

E-96 Series

 

 

K :

  ±10%

J :

  ±5%

G :

  ±2%

F :

  ±1%

  (Special)

  

  
 

 


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