CARBON FILM FIXED RESISTORS (CF ; RD)
 
Features
 
  • Formed from the crystallization of carbon on ceramic rods, under a high temp. of 1000J, 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 -55J ~ +155J
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[

51K100K[

110K330K[

Over 360K[

1/4W & Over

Under 100K[

110K1M[

1.1M2.2M[

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

100K[G±3%
100K[G±5%

Load Life

100K[G±(2%+0.05[)
100K[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.

 

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.

 

How to Order

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

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CF 1/4W

V

T52

V

100R J
   
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

 

 

B :

 Bulk

Txx :

 Taping XXmm

PU :

 Horizontal

PF :

 Vertical

  

 

  

 

  

 

 

(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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