By insert MICA wirewound resistors in 7MM thickness heatsink aluminum case, the sizes of power resistors will be much smaller than traditional ceramic core wirewound resistors.
Dimensions:
Electrical Performance:
Inspection item | Function requirement | Test method |
Insulation resistance | >50MΩ | 500VDC,1min |
Withstand voltage | No breakdown and arc flying | 1000VAC,5s |
Over load | No visible damage, △R≤±(1%R+0.05Ω) | 10 Times,5s |
Terminal tensile strength | No visible damage, △R≤±(1%R+0.05Ω) | 20N,10s |
Temperature Change | No visible damage, △R≤±(2%R+0.05Ω) | -55℃~+200℃, 3 cycles |
Vibration | No visible damage, △R≤±(2%R+0.05Ω) | 10Hz~500Hz,50m/s²,30min |
Damp heat steady state | No visible damage, △R≤±(5%R+0.1Ω) | 40±2℃,RH(90~95)%,96h |
Endurance | No visible damage, △R≤±(10%R+0.1Ω) | 25℃,Ur,1000h |