| 主要检验项目、检验方法及性能要求Main
inspection item,methods requirements |
| 检验项目Items |
性能要Requirements |
检验方法Methods |
| 阻值随温度变化Resistance vs temperature |
±250×10-6/℃ |
-55℃/20℃ 20/±125℃ |
|
| 室湿耐久性Endurance at room temperature |
±(5%R+0.1Ω) |
室温下，V=√KPR1000h |
|
| 耐电压Withstand voltage |
无击穿或飞弧 |
V形块法，施加交流电压，其峰值为绝缘电压的1.42倍 |
| 可焊性Solderabilitg |
焊料的自由流动与引线湿润为可焊性良好 |
235±5℃ 2±0.5s |
|
| 引出端强度Terminal strength |
±(1%R+0.05Ω) |
20N |
|
| 过载Over-load |
±(1%R+0.05Ω) |
V=√10PR 5s |
|
| 耐焊接热Resistance to soldering heat |
±(1%R+0.05Ω) |
350±10℃ 3.5±0.5s |
|
| 温度快速变化Fast temperature change |
±(1%R+0.05Ω) |
-55℃～±155℃ 5次循环 |
|
| 冲击Shock |
±(1%R+0.05Ω) |
249m/s2 11ms |
|
| 温升Temperature rlse |
≤250℃ |
VR |
|
| 稳态湿热Constant damp-heat |
±(5%R+0.1Ω) |
40+2℃ 93+2-3% 21天 |
|
| 上限类别温度耐久性Endurance at upper-linit temperature |
±(5%R+0.05Ω) |
±155℃ V=√58.5%PR 1000h |
|
| 意外过载试验Occasiomal over-load test |
不燃烧 |
5，10，16倍额定负荷 |
|
| 稳定度等级Stadility level |
|
5% |
|
| |
|
|
