MELF-MOR Series
MELF Metal oxide Resistors
MELF-MOR, MELF Metal Oxide Film Resistor, is with high reliability, high stability, and flame proof features. It is suitable to be applied in higher power circuits of electronic devices. We also can produce smaller size Metal Oxide Film resistors.
Features:
Watt : 1/4W ~ 3W. / Tolerance : 2% ~ 5%.
Features:
- High Wattage / High Stability / High Reliability
- Flame Proof Coating
Watt : 1/4W ~ 3W. / Tolerance : 2% ~ 5%.
| Size | POWER RATING |
MAX. RATING VOLTAGE |
MAX. OVERLOAD VOLTAGE |
RESISTANCE RANGE E-24;G(2%): J(5%) |
|---|---|---|---|---|
| 0207 | 1/4W(0.25W) | 250V | 500V | 0.5Ω~56kΩ |
| 1/2Ws(0.5W) | 300V | 500V | 0.5Ω~56kΩ | |
| 0309 | 1/24W(0.5W) | 350V | 600V | 0.5Ω~82kΩ |
| 1Ws | 350V | 600V | 0.5Ω~82kΩ | |
| 0411 | 1Ws | 400V | 700V | 0.5Ω~100kΩ |
| 2Ws | 400V | 700V | 0.5Ω~100kΩ | |
| 0515 | 3Ws | 500V | 800V | 0.5Ω~120kΩ |
| Item | Characteristics | Test Method |
|---|---|---|
| Operating Temp. Range | -40℃~200℃ | |
| Temperature Coefficient | ±350ppm/℃ | JIS-C5202;5.2 |
| Short time overload | ±1% | Rating voltage X 2.5 or Max.over1oad voltage for 5 sec. |
| Pulse overload | ±2% | RatingvoltageX4orMax.pulse over1oad voltage for 10 000 cycle (1 sec. "on" 25 sec. "off") |
| Temperature cycling | ±1% | -55℃(30min.)/85℃(30min.) for 5 cycle |
| Load Life in Humidity | ±5% | 40℃±2℃, 90%~95% RH, 1000h,1.5h “on”/0.5h”off” cycle |
| Load Life | ±5% | 70℃±2℃,1000h, 1.5h “on”/0.5h “off”cycle |
| Resistance to soldering heat |
±2% | 260℃±5℃,5sec ±1sec |
| Solderability | 90% Coverage/Min | 260℃±5℃,5 sec ±1sec |
| Bending test | ±1% | Holding point width 90mm，Bending 5mm，1 time |
| Non- Combustibility |
The resistors shall withstand Over1oad test in accordance With Article UL-94.V-0 without producing a fire hazard. | |
