Product Class : Fixed Resistor·High Voltage Resistor
★ Standard
▲ GB/T5729(IEC115-1)Fixed resistor used in electronic equipment part
1:Generic specification
▲ Q/RU270-2003((corporation standard)RI81 High voltage, high resistance ceramic film resistorspecification
★ Main Specification | Type | Rated power (W) | Resistance range (Ω) | Resistance tolerance
±(%) | TCR
±(×10-6/℃) | Limit voltage
(DC or AC effective value) (V) | Insulation voltage
(DC or AC peak value) (V) | | RI81 | 0.5 | 100K~68M | 2(G)、5(J)
10(K) | 250 | 1000 | 7000 | | 1 | 100K~68M | 7000 | 10000 |
★ Main lnspection Items methods & requirements | Items | Requirements | Methods | | TCR | ±250×10-6/℃ | -55℃~+155℃ | | Endurance at room temperature | ±（2%R+0.1Ω） | VR(或Umax）1000h | | Withstand voltage | No breakage or flashover | V-block method，1.42times insulation voltage 1min | | Solder ability | Good tinning | 235±5℃ , 2±5s | | Over-load | ±（0.5%R+0.05Ω） | 2.5VR(orUmax) 5s | | Terminal strength | ±（0.5%R+0.05Ω） | Tensile 0.5W:10N,1W:22.2N bending 2time
torsion 180℃2time | | Resistance to soldering heat | ±（0.5%R+0.05Ω） | 350±10℃ 3.5±5s | | Fast temperature change | ±（0.5%R+0.05Ω） | -55℃/+155℃ 5time | | Vibration | ±（0.5%R+0.05Ω） | 10Hz~500Hz 0.75mm or 98m/s2 6h | | Climate category | ±（2%R+0.1Ω） | Dry heat，damp heat first cycle，cold,…. | | Steady damp-heat | ±（2%R+0.1Ω） | V=0.１√PR 40±2℃humidity(90~95)% day56 | | Endurance at upper-limit temperature | ±（2%R+0.1Ω） | V=0 155℃,1000h | | Charge/discharge test | ±20% | 0.5W:1MΩ~68MΩ,1W:100KΩ~68MΩ asUL1676,6.3
U=10KV、Cd=0.001μf，Period of puls5s 50time |
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