Item | Methods | Acceptance criterion |
Resistance | Item4.6.2：Use measuring tool to measure, and its accuracy is 1/4 of measured resistance tolerance | ≤±1% |
Thermal impulse | Item4.6.3：Load rated power till heat is balanced | △R≤±(0.5%R+0.05Ω) |
Terminal strength | term4.6.6：1W：25N 2W：22.5N
3W、4W、6W、8W：45N | No mechanical damage △R≤±(0.2%R+0.05Ω) |
Dielectric withstand voltage | term4.6.8：3W、4W、6W、8W：1000V 1W、2W：500V | No breakdown or flashover |
High temperature exposure | term4.6.8：275℃ 250±8h | No mechanical damage △R≤±(1%R+0.05Ω) |
Moisture proof | term4.6.11：a：Loading： output power of the voltage is 85% of rated power
b：Polarization：100VDC | No mechanical damage △R≤±(0.5%R+0.05Ω)
Insulation resistance≥100MΩ、No mechanical damage |
Low temperature storage | term4.6.12：-65±2℃ 24±4h | No mechanical damage△R≤ ±(0.5%R+0.05Ω) |
Shock | term4.6.14：1000m/s，6ms，Half-sine wave | No mechanical damage △R≤±(0.2%R+0.05Ω) |
High frequency vibration | term4.6.15：10~2000Hz，0.75mm/200m/s,6h | No mechanical damage △R≤±(0.2%R+0.05Ω) |
Life | term4.6.16：At 25℃，Load rated voltage，2000h | No mechanical damage△R≤±(1%R+0.05Ω) |
Temperature characteristic | term4.6.7：-55℃/25℃，+125℃/25℃，+275℃/25℃ | R>10Ω，TCR±50×10-6/℃
R=1Ω~10Ω，TCR±100×10 |
Short time over-load | term4.6.4：Rated power≤3W，Load 5 times of rated power，5s
Rated power≥4W，Load 10 times of rated power，5s | △R≤±(0.5%R+0.05Ω) |
Solderability | term4.6.5：235±2℃，2±0.5s | No flashover、combustion or scorch,
95 % of the terminal surface is covered by new solder pellicle |
Insulation resistance | term4.6.9：100V | >100MΩ |
