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Specifications
Type:
Metal Film Resistor
Resistance:
1MΩ
Voltage-Supply(Max):
250V
Power(Watts):
250mW
Temperature Coefficient:
±100ppm/℃
Tolerance:
±1%
Operating Temperature:
-55℃~+155℃
Mfr. Part #:
MF1/4W-1MΩ±1% T
Package:
Through Hole,D2.3xL6.5mm
Key Attributes
Model Number:
MF1/4W-1MΩ±1% T
Product Description
Metal Film Fixed Resistor
This specification applies to Metal Film Fixed Resistors manufactured by CHIAN CHIA ELECTRONIC(HU BEI)CO.,LTD, which comply with RoHS requirements for environmental-related substances. These resistors are distinguished by their type, rated power, nominal resistance value, tolerance, and form.
Product Attributes
- Brand: CHIAN CHIA ELECTRONIC
- Origin: HUBEI PROVINCE, CHINA
- Material: Metal film resistor element, High alumina ceramic core, Tinned iron cap terminals, 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 Range () | Tolerance | Max. Working Voltage (V) | Max. Overload Voltage (V) | Dielectric Withstanding Voltage (V) | Operating Temperature Range () |
| MF1/8W | 0.125W | 1 ~1M | J (5%), G (2%), F (1%), D (0.5%) | 150V | 300V | 300V | -55 ~ +155 |
| MF1/4W | 0.25W | 1 ~10M | J (5%), G (2%), F (1%), D (0.5%) | 250V | 500V | 350V | -55 ~ +155 |
| MF1/2W | 0.5W | 1 ~10M | J (5%), G (2%), F (1%), D (0.5%) | 300V | 700V | 400V | -55 ~ +155 |
| MF1W | 1W | 1 ~10M | J (5%), G (2%), F (1%), D (0.5%) | 350V | 800V | 450V | -55 ~ +155 |
| MF2W | 2W | 1 ~10M | J (5%), G (2%), F (1%), D (0.5%) | 500V | 800V | 450V | -55 ~ +155 |
| MF3W | 3W | 1 ~10M | J (5%), G (2%), F (1%), D (0.5%) | 500V | 800V | 500V | -55 ~ +155 |
| MF5W | 5W | 1 ~10M | J (5%), G (2%), F (1%), D (0.5%) | 500V | 1000V | 500V | -55 ~ +155 |
| MF1/4WS | 0.25W | 1 ~10M | J (5%), G (2%), F (1%), D (0.5%) | 150V | 300V | 300V | -55 ~ +155 |
| MF1/2WS | 0.5W | 1 ~10M | J (5%), G (2%), F (1%), D (0.5%) | 250V | 700V | 350V | -55 ~ +155 |
| MF1WS | 1W | 1 ~10M | J (5%), G (2%), F (1%), D (0.5%) | 300V | 800V | 400V | -55 ~ +155 |
| MF2WS | 2W | 1 ~10M | J (5%), G (2%), F (1%), D (0.5%) | 350V | 800V | 450V | -55 ~ +155 |
| MF3WS | 3W | 1 ~10M | J (5%), G (2%), F (1%), D (0.5%) | 500V | 1000V | 450V | -55 ~ +155 |
| MF5WS | 5W | 1 ~10M | J (5%), G (2%), F (1%), D (0.5%) | 500V | 1000V | 500V | -55 ~ +155 |
Construction
| NO | Item | Material |
| 1 | Ceramic core | High alumina ceramic is used. |
| 2 | Resistor element | Metal film. |
| 3 | Terminal | Tinned iron cap. |
| 4 | Connection | Lead wire to caps by welding process. |
| 5 | Lead wire | Soldered or tinned annealed wire. |
| 6 | Undercoat painting | Electric insulation resin. |
| 7 | Finishing painting | Epoxy resin is used. |
| 8 | Indication | Color code. |
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, See table-1) |
| 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 (2555, 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 of -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) |
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 | I2.0 | L1.0 | D | d0.05 | H2.0 |
| MF1/8W, MF1/4WS | 60 | 3.2 | 1.80.5 | 0.40 | 27 |
| MF1/4W, MF1/2WS | 60 | 6.5 | 2.30.5 | 0.43 | 26 |
| MF1/2W, MF1WS | 60 | 9.0 | 3.20.5 | 0.50 | 26 |
| MF1W, MF2WS | 60 | 11.5 | 4.51.0 | 0.68 | 25 |
| MF2W | 73 | 11.5 | 4.51.0 | 0.68 | 31 |
| MF3W, MF3WS | 60 | 15.5 | 5.01.0 | 0.68 | 23 |
| MF3W | 81 | 15.5 | 5.01.0 | 0.68 | 33 |
| MF5W, MF5WS | 94 | 17.5 | 6.01.0 | 0.68 | 38 |
| MF5W | 94 | 24.5 | 8.01.0 | 0.68 | 35 |
2410121228_CCO-Chian-Chia-Elec-MF1-4W-1MR-1--T_C119389.pdf
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