MELF-CFR
MELF Carbon Film Resistors
Carbon Film Resistor, is with the features of high reliability, stability, and competitive price, and applied for various electronic equipments.
Features:
High Power Fixed Type & Adjustable Type Wirewound Resistors.
Wattage : 1/8W ~ 3W Tolerance : 2% ~ 5%
Features:
High Power Fixed Type & Adjustable Type Wirewound Resistors.
- High Stability
- High Stability
- Competitive Price
Wattage : 1/8W ~ 3W Tolerance : 2% ~ 5%
| Size | POWER RATING |
MAX. RATING VOLTAGE |
MAX. OVERLOAD VOLTAGE |
RESISTANCE RANGE E-24;G(2%): J(5%) |
|---|---|---|---|---|
| 0204 | 1/8W(0.125W) | 200V | 400V | 2.2Ω~1MΩ |
| 1/4Ws(0.25W) | 250V | 500V | 2.2Ω~1MΩ | |
| 0207 | 1/4W(0.25W) | 250V | 500V | 1.0Ω~2.2MΩ |
| 1/2Ws(0.5W) | 300V | 600V | 1.0Ω~2.2MΩ | |
| 1Wss(1W) | 400V | 600V | 1.0Ω~2.2MΩ | |
| 0309 | 1Ws | 500V | 1000V | 1.0Ω~10MΩ |
| 0411 | 2Ws | 500V | 1000V | 1.0Ω~10MΩ |
| 0515 | 3Ws | 500V | 1000V | 1.0Ω~10MΩ |
| Item | Characteristics | Test Method | ||||
|---|---|---|---|---|---|---|
| Operating Temp. Range | -55℃~155℃ | |||||
| Temperature Coefficient | SIZE | +350~ -450 | 0~ -700 | 0~-1000 | +0~-1300 | JIS-C-5202;5.2 |
| 0204 | 1.0Ω~ 47KΩ | 51KΩ220KΩ | 240KΩ~470KΩ | 510KΩ~1.0MΩ | ||
| 0207以上 | 1.0Ω~ 100KΩ | 110KΩ~330KΩ | 360KΩ~1.0MΩ | 1.1MΩ~2.2MΩ | ||
| Short time overload | ±1% | Rating voltage×2.5 or Max. overload voltage for 5 sec. Whichever less |
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| Pulse overload | ±2% | Rating voltage×4 or Max.pulse overload voltage for 10,000 cycle (1sec. “on” 25 sec. “off” cycle |
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| Temperature cycling | ±1% | -55℃(30min.)/85℃(30min.)for 5cycle | ||||
| Load Life in Humidity | ±5% | 40℃±2℃, 90%~95% RH,1000h,1.5h “on”/0.5h”off” cycle | ||||
| Load Life | ±5% | 70℃±2℃, 1000h, 4.5h“on”/0.5h “off”cycle |
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| Resistance to soldering heat |
±2% | 260℃±5℃, 5sec ±1sec | ||||
| Solderability | 90% Coverage/Min | 235±5℃, 2sec±0.5sec | ||||
| Bending test | ±1% | Holding point width 90mm, Bending 5mm, 1 time | ||||
| High Temp. exposure |
±2% | 155℃5℃, 2houts | ||||
| Non- Combustibility |
The resistors shall withstand overload test in accordance With Article UL-94. V-0 without producing a fire hazard. | |||||
