Carbon Resistors (CF)

Pulse load carbon film resistor is the cost-effective option.

Providing design engineers with an economical power resistor with high quality performance, Direct Electronics now offers commercial grade low power carbon film resistors.

Designated the CF series, the resistors are available in both standard CF and miniature CFS sizes, the conformally coated resistors offer high quality performance for applications that do not require surge protection or precision tolerances.

The commercial grade carbon CF series is available in flame retardant packaging and have ideal specifications for consumer electronic or electrical devices. The CF devices offer a wide resistance range for devices with power ratings up to 3W in standard CF size, and 5W in miniature CFS sizes, delivering high quality performance for general purpose applications.

The CF series resistors are ideal for general use applications including electrical equipment, small appliances and consumer electronics, such as televisions and other high-volume products. The CF series feature standard tolerances is G (±2%) and J (±5%), with a resistance range from 0.5Ω to 22MΩ.

All CF series devices are RoHS-compliant, and compatible with high temperature soldering processes normally employed for lead free solders. Also, CF resistors are available in various forming styles and different leads for different applications. Contact us with your specific needs.

Download complete PDF Carbon Resistors (CF).

Features :
  1. Tolerances: G (±2%), J (±5%)
  2. Power wattages up to 5W at +25°C
  3. Lead (Pb)-free and RoHS compliant
  4. Operating temperature range: -55°C~+155°C
  5. Axial leaded type, high power at small sizes
Applications :
  1. Consumer Electronic
  2. Telecommunications
  3. Household Appliances
  4. Automotive, Computer, Instrumentation
Dimensions & Specifications (Unit: mm) (CF)
耐冲击电阻/突波电阻/玻璃釉膜电阻
Type Dimension (mm) Maximum
Working
Voltage
Maximum
Overload
Voltage
Resistance Tolerance
CF CFS L D H d±0.05 ± 2%(G) ± 5%(J)
1/8 W   3.2±0.2 1.5 ±0.2 26±1 0.40~0.45 200 400 10Ω-470K 1Ω-4.7M
1/6 W 1/4 W 3.2±0.2 1.5±0.2 26±1 0.40~0.45 200 400 1Ω-10M 0.5Ω-22M
1/4 W 1/2 W 6.2±0.5 2.3±0.3 26±1 0.40~0.50 250 500 1Ω-10M 0.5Ω-22M
1/3 W 1/2 W 8.5±0.5 2.8±0.3 26±1 0.50~0.55 250 500 1Ω-10M 0.5Ω-22M
1/2 W 1 W 9.0±0.5 3.0±0.5 26±1 0.50~0.55 350 700 1Ω-10M 0.5Ω-22M
1 W 2 W 11±1.0 4.0±0.5 35±3 0.75~0.80 500 1000 1Ω-10M 0.5Ω-22M
2 W 3 W 15±1.0 5.0±0.5 35±3 0.75~0.80 500 1000 1Ω-10M 0.5Ω-22M
3 W 5 W 17±1.0 6.0±0.5 35±3 0.75~0.80 500 1000 1Ω-10M 0.5Ω-22M
Electrical Performance (CF)
Test Items Condition Spec
Operating Temp.range -55°C ~ +155°C  
Short Time Over Load 2.5 Times of rated voltage for 5sec. ± 1%
Load Life 70 °C on-off cycle 1,000hrs. ± 5%
Moisture-Proof Load Life 40 °C 95% RH on-off cycle 1,000hrs ± 5%
Soldering After Resistance 350 °C for 3sec. ± 0.5%
Temperature Cycle -30 °C~85 °C 5cycles ± 2%
Resistance Temperature Coefficient 1Ω~22KΩ
22KΩ~510KΩ
510KΩ~1MΩ
1MΩ~2.2MΩ
2.2MΩ~5.1MΩ
± 300PPM / °C
± 450PPM / °C
± 800PPM / °C
± 1000PPM / °C
± 1400PPM / °C
Order Codes (CF)
CF 0.125W 100R J TB
Type
CF
CFS
Power Rating
(W)
Resistance Value
(Ω)
1R
10R 10Ω
100R 100Ω
10K 10KΩ
10M 10MΩ
22M 22MΩ
Resistance Tolerance
(%)
G ±2%
J ±5%
Package
TB Taping Box