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Thunder Components Ltd.

Metal Oxide Resistors in Taiwan

For more than 40 years, we have been specializing in providing metal oxide resistors, MELF metal oxide resistors. Thunder Components Ltd.’s products represent a high standard of excellence with a well-known reputation set by its strict quality control. Our business is based on integrity and character and will be built through relationships and extraordinary customer service. We are dedicated to developing co-workers who are committed to one another and to our customers. If you require more information on a particular product, please don't hesitate to contact us.
MELF Metal oxide Resistors

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:
  • High Wattage / High Stability / High Reliability
  • Flame Proof Coating

Watt : 1/4W ~ 3W. / Tolerance : 2% ~ 5%.
Charcateristics :

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.

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As an independent metal oxide resistors integrator, Thunder Components Ltd. is free to specify and select the best of MELF metal oxide resistors regardless of the manufacturer. Our quality controllers perform a variety of quality processes in the entire production process in order to ascertain that only high-quality products are delivered at clients’ end. We wish to create win-win relationships throughout the supply chain. It is our pleasure to service your metal oxide resistors needs.