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Specifications
Type:
Metal Film Resistor
Resistance:
20kΩ
Voltage-Supply(Max):
250V
Power(Watts):
250mW
Temperature Coefficient:
±100ppm/℃
Tolerance:
±1%
Operating Temperature:
-55℃~+155℃
Mfr. Part #:
MF1/4W-20KΩ±1% T
Package:
Through Hole,D2.3xL6.5mm
Key Attributes
Model Number:
MF1/4W-20KΩ±1% T
Product Description
Metal Film Fixed Resistor
This specification covers Metal Film Fixed Resistors manufactured by CHIAN CHIA ELECTRONIC(HU BEI)CO.,LTD, complying with RoHS environmental substance requirements. These resistors are designed for general use and are distinguished by their type, rated power, nominal resistance value, tolerance, and shape.
Product Attributes
- Brand: CHIAN CHIA ELECTRONIC
- Origin: CHIAN CHIA ELECTRONIC(HU BEI)CO.,LTD, HUBEI PROVINCE, CHINA
- Material: Ceramic core (high alumina), Metal film resistor element, Tinned iron cap terminals, Soldered or tinned annealed wire leads, Electric insulation resin undercoat, Epoxy resin finishing paint.
- Body Color: Sky blue (for both Normal and Small size types)
- Certifications: RoHS compliant
Technical Specifications
| Type | Rated Power | Nominal Resistance Value | Resistance Tolerance | Max. Working Voltage | Max. Overload Voltage | Dielectric Withstanding Voltage | Resistance Range () | Operating Temperature Range |
| MF1/8W | 0.125W | E-24, E-96 Series | J (5%), G (2%), F (1%), D (0.5%) | 150V | 300V | 300V | 1 ~1M | -55+155 |
| MF1/4WS | 0.25W | E-24, E-96 Series | J (5%), G (2%), F (1%), D (0.5%) | 150V | 300V | 300V | 1 ~10M | -55+155 |
| MF1/4W | 0.25W | E-24, E-96 Series | J (5%), G (2%), F (1%), D (0.5%) | 250V | 500V | 350V | 1 ~10M | -55+155 |
| MF1/2WS | 0.5W | E-24, E-96 Series | J (5%), G (2%), F (1%), D (0.5%) | 250V | 700V | 350V | 1 ~10M | -55+155 |
| MF1/2W | 0.5W | E-24, E-96 Series | J (5%), G (2%), F (1%), D (0.5%) | 300V | 700V | 400V | 1 ~10M | -55+155 |
| MF1WS | 1W | E-24, E-96 Series | J (5%), G (2%), F (1%), D (0.5%) | 300V | 800V | 400V | 1 ~10M | -55+155 |
| MF1W | 1W | E-24, E-96 Series | J (5%), G (2%), F (1%), D (0.5%) | 350V | 800V | 450V | 1 ~10M | -55+155 |
| MF2WS | 2W | E-24, E-96 Series | J (5%), G (2%), F (1%), D (0.5%) | 350V | 800V | 450V | 1 ~10M | -55+155 |
| MF2W | 2W | E-24, E-96 Series | J (5%), G (2%), F (1%), D (0.5%) | 500V | 800V | 450V | 1 ~10M | -55+155 |
| MF3WS | 3W | E-24, E-96 Series | J (5%), G (2%), F (1%), D (0.5%) | 500V | 1000V | 450V | 1 ~10M | -55+155 |
| MF3W | 3W | E-24, E-96 Series | J (5%), G (2%), F (1%), D (0.5%) | 500V | 800V | 500V | 1 ~10M | -55+155 |
| MF5WS | 5W | E-24, E-96 Series | J (5%), G (2%), F (1%), D (0.5%) | 500V | 1000V | 500V | 1 ~10M | -55+155 |
| MF5W | 5W | E-24, E-96 Series | J (5%), G (2%), F (1%), D (0.5%) | 500V | 1000V | 500V | 1 ~10M | -55+155 |
Characteristics
| Item | Performance | Test Methods (Conform to JIS C 5202) |
| Temperature Coefficient | Within 100PPM/ | Comply with 5.2 |
| Short time overload | Within (0.5%+0.05). No evidence of mechanical damage. | Comply with 5.5 (Rated voltage2.5 times, 5s) |
| Insulation Resistance | 104M or more. | Comply with 5.6 (DC 500V for 60 seconds) |
| Dielectric Withstanding Voltage | No evidence of flashover, arcing or insulation breakdown. | Comply with 5.7 (AC potential respectively for 60 seconds) |
| Terminal strength | No evidence of mechanical damage. | Comply with 6.1 (Tensile and Torsion strength) |
| Resistance to soldering heat | Within (0.5%+0.05). No evidence of mechanical damage. | Comply with 6.4 (35010, 31.0s) |
| Solderability | Covered with new solder by 95% at least. | Comply with 6.5 (Solder temp: 2555, Dipping time: 31.0s) |
| Resistance to solvent | No deterioration of protective coating and markings. | Comply with 6.9 (Immersed in isoproalcohol for 3 minutes with ultrasonic) |
| Temperature cycle | Within (1%+0.05). No evidence of mechanical damage. | Comply with 7.4 (5 cycles: -55/30min to +80/30min) |
| Load life in humidity | Within (2%+0.05) | Comply with 7.9 (402, 90-95%RH, 1000h, Rated voltage) |
| Load life | Within (2%+0.05) | Comply with 7.10 (703, 1000h, Rated voltage) |
Indication (Color Code)
| Color | 1st Figure | 2nd Figure | 3rd Figure | Multiplier | Tolerance |
| Black | 0 | 0 | 0 | 100 | |
| Brown | 1 | 1 | 1 | 101 | 1% (F) |
| Red | 2 | 2 | 2 | 102 | 2% (G) |
| Orange | 3 | 3 | 3 | 103 | |
| Yellow | 4 | 4 | 4 | 104 | |
| Green | 5 | 5 | 5 | 105 | |
| Blue | 6 | 6 | 6 | 106 | |
| Violet | 7 | 7 | 7 | 107 | |
| Gray | 8 | 8 | 8 | ||
| White | 9 | 9 | 9 | ||
| Gold | 10-1 | 5% (J) | |||
| Silver | 10-2 | ||||
| Plain | 0.1%, 0.25%, 0.5%, 1% (5-Band code) |
External Dimensions (P Type)
| Type | L1.0 (mm) | D (mm) | d0.05 (mm) | H2.0 (mm) | I2.0 (mm) |
| MF1/8W, MF1/4WS | 60 | 3.2 | 0.40 | 27 | 1.80.5 |
| MF1/4W, MF1/2WS | 60 | 6.5 | 0.43 | 26 | 2.30.5 |
| MF1/2W, MF1WS | 60 | 9.0 | 0.50 | 26 | 3.20.5 |
| MF1W, MF2WS | 60 | 11.5 | 0.68 | 25 | 4.51.0 |
| MF2W | 73 | 11.5 | 0.68 | 31 | 4.51.0 |
| MF3WS | 60 | 15.5 | 0.68 | 23 | 5.01.0 |
| MF3W | 81 | 15.5 | 0.68 | 33 | 5.01.0 |
| MF5WS | 94 | 17.5 | 0.68 | 38 | 6.01.0 |
| MF5W | 94 | 24.5 | 0.68 | 35 | 8.01.0 |
2410121228_CCO-Chian-Chia-Elec-MF1-4W-20KR-1--T_C119353.pdf
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