 |
| Quantity: | |
|---|---|
| 1.Survey ： | |||||||||||||
| ⑴ . Application scope ：Wirewound Resistors | |||||||||||||
| Temperature range ：-55℃~+275℃ | |||||||||||||
| ⑵ . Test environment： | |||||||||||||
| Ambient temperature ：20±2℃ , Relative humidity ：60～70%. | |||||||||||||
| But ，If it does not affect the judgment or cause questions, Can also be carried out in the conventional temperature and humidity conditions. | |||||||||||||
| Conventional temperature ：10℃ ~ 35℃. Conventional humidity: 45% ～85% | |||||||||||||
| 2.Resistor basic parameters： | |||||||||||||
| 3.Appearance and structure ： ⑴Appearance ： | |||||||||||||
| The resistors are smooth and free of cracks and contamination ⑵structure ： | |||||||||||||
| Resistor type | Wirewound ＆Silicone Coating | ||||||||||||
| Power | Resistance(Ω) | Accuracy | TCR (10-6/℃) | Temperature range (℃) | Product size(mm) | |||||||
| L±1.5 | D±1.5 | l±2 | d±0.05 | |||||||||
| 1W | 0.1R | F | ≤90PPM | -55～+275 | 12.5 | 4.5 | 35 | 0.8 | ||||
| 3W | 5R | J | ≤250PPM | -55～+275 | 13.7 | 4.8 | 35 | 0.8 | ||||
| ⑶. Characteristic | ||||||||||||||
| Test item | Test Condition | Specifications | ||||||||||||
| Overload | 5PR 5S | △R≤±（0.5%R+0.1 Ω ) | ||||||||||||
| Weld ability | Tank temperature：235℃±5℃ , Dip time ：2s±0.5s | EC68-2-20（1968）Slot welding | ||||||||||||
| Steady state damp heat | Temperature：40℃±2℃ Humidity：90%～95% Hour：56H | △R≤±（5%R+0.1 Ω ) | ||||||||||||
| Long term test | 1000h | R≤±（1%R+0.05 Ω ) | ||||||||||||
| Temperature rise | Apply rated voltage to achieve thermal stability | ≤275℃ | ||||||||||||
| 1.Survey ： | |||||||||||||
| ⑴ . Application scope ：Wirewound Resistors | |||||||||||||
| Temperature range ：-55℃~+275℃ | |||||||||||||
| ⑵ . Test environment： | |||||||||||||
| Ambient temperature ：20±2℃ , Relative humidity ：60～70%. | |||||||||||||
| But ，If it does not affect the judgment or cause questions, Can also be carried out in the conventional temperature and humidity conditions. | |||||||||||||
| Conventional temperature ：10℃ ~ 35℃. Conventional humidity: 45% ～85% | |||||||||||||
| 2.Resistor basic parameters： | |||||||||||||
| 3.Appearance and structure ： ⑴Appearance ： | |||||||||||||
| The resistors are smooth and free of cracks and contamination ⑵structure ： | |||||||||||||
| Resistor type | Wirewound ＆Silicone Coating | ||||||||||||
| Power | Resistance(Ω) | Accuracy | TCR (10-6/℃) | Temperature range (℃) | Product size(mm) | |||||||
| L±1.5 | D±1.5 | l±2 | d±0.05 | |||||||||
| 1W | 0.1R | F | ≤90PPM | -55～+275 | 12.5 | 4.5 | 35 | 0.8 | ||||
| 3W | 5R | J | ≤250PPM | -55～+275 | 13.7 | 4.8 | 35 | 0.8 | ||||
| ⑶. Characteristic | ||||||||||||||
| Test item | Test Condition | Specifications | ||||||||||||
| Overload | 5PR 5S | △R≤±（0.5%R+0.1 Ω ) | ||||||||||||
| Weld ability | Tank temperature：235℃±5℃ , Dip time ：2s±0.5s | EC68-2-20（1968）Slot welding | ||||||||||||
| Steady state damp heat | Temperature：40℃±2℃ Humidity：90%～95% Hour：56H | △R≤±（5%R+0.1 Ω ) | ||||||||||||
| Long term test | 1000h | R≤±（1%R+0.05 Ω ) | ||||||||||||
| Temperature rise | Apply rated voltage to achieve thermal stability | ≤275℃ | ||||||||||||
