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MELF Metal Film Fusible Resistors
Our organization has given enough emphasis to offer quality assured products. For this purpose, we have established a quality controlling unit that is equipped with all the quality checking machines. Thunder Components Ltd. founded in 1971 to venture into the competitive and challenging world of security system and provide solutions of Fusible Resistors and related security solutions. To make sure you get the best possible performance for the money, we’re constantly testing our tools throughout the design and manufacturing processes.
MELF-FRN Series
MELF Metal Film Fusible Resistors
MELF-MOR, MELF Fusible Metal Film Resistor, is a nonflammable resistor, which is applied to protect electronic circuit boards and design.
Features :
- Flame Proof Coating / Low Temperature Coefficient
- Uniform in Fusing Time
Watt : 1/8W ~ 3W / Tolerance : 1% ~ 5% / Fusing Time : 15 secs, 20 secs, 30 secs, 40 secs, 1 min.
Features :
- Flame Proof Coating / Low Temperature Coefficient
- Uniform in Fusing Time
Watt : 1/8W ~ 3W / Tolerance : 1% ~ 5% / Fusing Time : 15 secs, 20 secs, 30 secs, 40 secs, 1 min.
Charcateristics :
| Item | Characteristics | Test Method |
|---|---|---|
| Operating Temp. Range | -55℃~155℃ | |
| Temperature Coefficient | ±200 ppm/℃ | JIS-C-5202; 5.2 |
| Short time over1oad | ±2% | Rating voltage X2.5 or Max. overload voltage For 5 sec. Whichever less |
| Resistance to soldering heat | ±2% | 260℃±5℃,5 sec±1 sec |
| Insulation Resistance | Over 103MΩ | JIS-C-5202;5.6- A |
| 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 |
| So1derability | 90% Coverage / Min | 235℃±5℃,2 sec±0.5 sec |
| Bending test | ±1% | Holding point width 90mm， Bending 5mm，1 time |
| Non-Combustibility | The resistors shall withstand Overload test in accordance With Article UL-94，V-O without producing a fire hazard. | |
Dimensions :
| TYPE | Size | Power Rating | Dimensions(mm) | |||
|---|---|---|---|---|---|---|
| L | D | C | S | |||
| Normal size | 0204 | 1.8W; 1/4Ws | 3.5±0.2 | 1.45±0.1 | 0.7±0.1 | 0.15±0.1 |
| 0207 | 1/4W; 1/2Ws | 5.7±0.2 | 2.2±0.1 | 0.8±0.2 | 0.2±0.1 | |
| 0309 | 1/2W; 1Ws | 8.5±0.3 | 3±0.3 | 1.7±0.2 | 0.3±0.1 | |
| 0411 | 1W; 2Ws | 10.5±0.3 | 4±0.3 | 2.3±0.2 | 0.3±0.1 | |
| 0515 | 2W, 3Ws | 14.5±0.3 | 4.5±0.3 | 2.3±0.2 | 0.3±0.1 | |
At Thunder Components Ltd., we strive to bring you the best Fusible Resistors for the best price. Providing essential and highly sophisticated technology, Thunder Components Ltd. is devoted to manufacture the most reliable products for our clients. The Fusible Resistors delivers a higher productivity, cost-reducing advantage by accepting double-sided inserts. Give us an opportunity to help you, your company and your customers!