Product Class : Fixed Resistor·Wire Wound Resistor
★Standard
▲Q/RU157-1999 Type RX24 Power Wire-Wound Resistor specification ★Main Specification Type | Resistance range
(Ω) | Resistance tolerance
±(%) | T.C.R.
±(×10-6/℃) | Limit Voltage
(V) | Insulation voltage
(V) | RX24-5W | 0.511~3.32K | 1(F)
2(G)
5(J)
R<10Ω5（J） | 100
≤10ΩNo stipulation | 130 | 195 | RX24-10W | 0.511~4.42K | 200 | 300 | RX24-20W(25W) | 0.511~8.66K | 400 | 600 | RX24-50W | 0.511~26.1K | 800 | 1200 |
★Main Inspection items, methods & requirements Items | Requirements | Methods | Terminal strength | ΔR≤±(0.5%R+0.05Ω) | Tension test 9.8N 10±1s | TCR | ±100×10-6/℃(<10ΩNo stipulation) | -55℃/20 20/+150℃ | Constant damp-heat | Insulation resistance ≥10MΩ ΔR≤≤±(1%R+0.05Ω) | 40+2℃ Relative humidity：93±3% 48h | Vibration | ΔR≤±(1%R+0.05Ω) | 10~500Hz，0.75mm，3h | Solderability | Terminal is well covered with solder and the solder can freely flow | 235±5℃ 2±0.1s | Thermal cycle | ΔR≤±(3%R+0.05Ω) | -55℃/275℃ 3 cycles | Lowatmospheric pressure | No breakdown or flashover | 5W：65V 10W：100V
20(25)W：200V 50W：400V
Way of V-shaped block | Surface temperature rise | ≤275℃ | VR | Short-time load | ΔR≤±(3%R+0.05Ω) | Room temperature，VR100h |
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