POWER METAL FIXED RESISTOR Structure Derating Curve Type

POWER METAL FIXED RESISTOR 功率型金屬膜電阻器 Structure 結構 Derating Curve 功率下降曲線 Type 規格 Max Working Voltage 最大 作電壓 Max overload Voltage 最大負載電壓 Dielectric Withstanding Voltage 絕緣電壓 Operating Temperature Range 溫度範圍 PMR 1 WSSS 500 V 600 V 350 V -55℃~+275℃ PMR 2 WS 500 V 600 V 350 V -55℃~+275℃ PMR 3 WS 500 V 600 V 350 V -55℃~+275℃ Type 規格 D (mm) L (mm) d (max) H (mm) Resistance Range 阻值範圍 PMR 1 WSSS 2. 5 (Max) 7. 5 (Max) 0. 54± 0. 05 28± 3. 0 ± 1%: 22 Ω ~ 470 KΩ ± 5%: 22 Ω ~ 470 KΩ PMR 2 WS 4. 0 (Max) 11. 0 (Max) 0. 70± 0. 05 28± 3. 0 ± 1%: 3. 9 Ω ~ 100 KΩ ± 5%: 3. 9 Ω ~ 100 KΩ PMR 3 WS 5. 5 (Max) 16. 0 (Max) 0. 70± 0. 05 28± 3. 0 ± 1%: 3. 9 Ω ~ 100 KΩ ± 5%: 3. 9 Ω ~ 100 KΩ Characteristic 特性 Test Item 測試項目 Standard 標準 Temperature coefficient 溫度係數 3. 9Ω ~100 K Ω = ± 350 PPM/℃ 470 K Ω = ± 700 PPM/℃ Load Life in humidity 濕度壽命 Less than 100 KΩ ΔR/R ≤ ± 5. 0% 100 KΩ or more ΔR/R ≤ ± 10. 0% Short time overload 短時間過負荷 ΔR/R ≤ ±(2. 0%+0. 05Ω) Solder ability 焊接能力 Min. 95% coverage Resistance to soldering heat 焊接熱 耐性 ΔR/R ≤ ±(1. 0%+0. 05Ω) Temperature cycling 溫度週期變化 ΔR/R ≤ ±(2. 0%+0. 05Ω) Terminal strength 端腳強度 No evidence of mechanical damage 無機械破損痕跡 Load Life 負載壽命 Less than 100 KΩ ΔR/R ≤ ± 5. 0% 100 KΩ or more ΔR/R ≤ ± 10. 0% Pulse overload 脈衝過負荷 ΔR/R ≤ ±(5. 0%+0. 05Ω) Resistance to solvent 電阻耐溶劑 No deterioration of protective coating and markings 無皮層脫離痕跡 Dielectric withstanding voltage 絕緣電壓 No evidence of flashover, mechanical damage, arcing or insulation breakdown 無電弧, 機械, 損傷, 擊穿或絕緣體破損 痕跡