Items | Methods | Requirements |
T.C.R. | -55℃/20℃ 20℃/155℃ | ±250×10-6/℃ |
Endurance at room temperature | Room temperature,V=(KPR)1/2,1000h | ±(5%R+0.1Ω) |
Withstand voltage | Way of V-shaped block,load alternating current voltage, it’s speak voltage is 1.42 times to insulation voltage | No breakdown or flashover |
Solderability | 235±5℃ 2±0.5s | Terminal is well covered with solder and the solder can freely flow |
Terminal strength | 20N | ±(1%R+0.05Ω) |
Over-load | V=(10PR)1/2 5s | ±(1%R+0.05Ω) |
Resistance to soldering heat | 350±10℃ 3.5±0.5s | ±(1%R+0.05Ω) |
Fast temperature change | -55℃~+155℃ 5 cycles | ±(1%R+0.05Ω) |
Shock | 490m/s2,11ms | ±(1%R+0.05Ω) |
Temperature rise | VR | ≤250℃ |
Constant damp-heat | 40±2℃ 93+2-3% 21days | ±(5%R+0.1Ω) |
Endurance at upper-limit temperature | +155℃,V=√58.5%PR 1000h | ±(5%R+0.1Ω) |
Occasional over-load test | Load 5,10,16 times to rated power | No combustion |
Stability grade | 5% | |