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Specifications
Type:
Carbon Film Resistor
Resistance:
330Ω
Voltage-Supply(Max):
250V
Power(Watts):
250mW
Temperature Coefficient:
±450ppm/℃
Tolerance:
±5%
Mfr. Part #:
CFR0W4J0331A50
Package:
Through Hole,D2.2xL6.5mm
Key Attributes
Model Number:
CFR0W4J0331A50
Product Description
UNIROYAL ELECTRONICS INDUSTRY (KUNSHAN) CO., LTD.
Product Description: LEAD-FREE CARBON FILM FIXED RESISTORS, CFR SERIES with tolerances of 2%, 5%, and 10%. These resistors are designed for various electronic applications requiring stable resistance values.
Product Attributes
- Brand: UNIROYAL
- Origin: Kun Shan, China
- Material: Carbon Film (Resistor), Ceramics (Basic Body Rod), Cold steel plated with copper/tin (End Cap), Tin solder coated copper wire (Lead Wire)
- Coating Color: Beige (1/8W, 1/4WS, 1/2WS, 1/4W, 1/2W, 1W, 2W), Light Brown (1WS, 2WS, 3WS), Gray Green (1/2WSS)
- Certifications: Not explicitly mentioned, but adheres to JIS C 0802 for color coding.
Technical Specifications
| Part Name | Power Rating | Tolerance | Resistance Range | Max Working Voltage | Max Overload Voltage | Dielectric Withstanding Voltage | Dimension (D x L mm) | Lead Wire Diameter (d mm) |
|---|---|---|---|---|---|---|---|---|
| CFR SERIES | 1/8W | 2%, 5%, 10% | 1~10M | 200V | 400V | 400V | 1.90.3 x 3.30.3 | 0.45 |
| CFR SERIES | 1/4W | 2%, 5%, 10% | 1~10M | 250V | 500V | 500V | 2.20.3 x 6.51.0 | 0.54 |
| CFR SERIES | 1/2W | 2%, 5%, 10% | 1~10M | 350V | 700V | 700V | 3.00.6 x 9.51.0 | 0.54 |
| CFR SERIES | 1W | 2%, 5%, 10% | 1~10M | 500V | 1000V | 1000V | 5.00.6 x 15.51.0 | 0.70 |
| CFR SERIES | 2W | 2%, 5%, 10% | 1~10M | 500V | 1000V | 1000V | 6.00.6 x 17.51.0 | 0.75 |
| CFR SERIES (Small Size) | 1/4WS | 2%, 5%, 10% | 1~10M | 200V | 400V | 400V | 1.90.3 x 3.30.3 | 0.45 |
| CFR SERIES (Small Size) | 1/2WSS | 2%, 5%, 10% | 1~10M | 250V | 500V | 250V | 2.20.5 x 6.51.0 | 0.54 |
| CFR SERIES (Small Size) | 1/2WS | 2%, 5%, 10% | 1~10M | 350V | 700V | 700V | 3.00.5 x 9.01.0 | 0.54 |
| CFR SERIES (Small Size) | 1WS | 2%, 5%, 10% | 1~10M | 500V | 1000V | 1000V | 4.00.6 x 11.51.0 | 0.65 |
| CFR SERIES (Small Size) | 2WS | 2%, 5%, 10% | 1~10M | 500V | 1000V | 1000V | 5.00.6 x 15.51.0 | 0.70 |
| CFR SERIES (Small Size) | 3WS | 2%, 5%, 10% | 1~10M | 500V | 1000V | 1000V | 6.00.6 x 17.51.0 | 0.75 |
Performance Specifications
| Characteristic | Limits | Test Method (JIS-C-5201& JIS-C-5202) |
|---|---|---|
| Temperature Coefficient | 300 PPM/ (10), 450 PPM/ (10<R<100K), 0 ~ -700 PPM/ (100KR1M), 0 ~ -1500 PPM/ (1M<R10M) | 4.8 |
| Short-time overload | Resistance change rate: (1%+0.05)Max. With no evidence of mechanical damage. | 4.13 |
| Insulation resistance | 10,000 M Min. | 4.6 |
| Dielectric withstanding voltage | No evidence of flashover mechanical damage, arcing or insulation breaks down. | 4.7 |
| Terminal strength | No evidence of mechanical damage | 4.16 |
| Resistance to soldering heat | Resistance change rate is: (1%+0.05) Max. With no evidence of mechanical damage. | 4.18 |
| Solderability | 95% coverage Min. | 4.17 |
| Temperature Cycling | Resistance change rate is: (1%+0.05) max.. With no evidence of mechanical damage. | 4.19 |
| Load life in humidity | Normal type: R/R 3% for <100K, 5% for 100K. Flame retardant type: R/R 5% for <100K; 10% for 100K. | 7.9 |
| Load life | Normal type: R/R 2% for <56K, 3% for 56K. Flame retardant type: R/R 5% for <100K; 10% for 100K. | 4.25.1 |
Part Number System Explanation
The standard Part No. includes 14 digits:
- 1st~4th: Product series name (e.g., CFR0 = Carbon Film Fixed Resistors)
- 5th~6th: Power rating and size. For power rating less than 1 watt, the 5th digit indicates size (W=Normal, S=Small, U=Extra Small) and the 6th digit is a code (e.g., W4=1/4W, S2=1/2W-S). For power of 1 watt to 16 watt, the 5th digit is a code and the 6th digit indicates size (e.g., AW=10W, 3S=3W-S).
- 7th: Resistance Tolerance (G=2%, J=5%, K=10%)
- 8th~11th: Resistance Value (For E-24 series, 8th digit is "0", 9th & 10th are significant figures, 11th is number of zeros).
2410121314_UNI-ROYAL-CFR0W4J0331A50_C61290.pdf
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