开关电源常用元器件课件.ppt

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1、开关电源技术SwitchingPowerSupplyTechniques1第二章开关电源常用元器件一、电阻二、电容三、变压器与电感四、三极管五、二极管六、MOSFET和IGBT2开关电源常用元器件无源器件ResistorCapacitorTransformerL(Inductor)有源器件DiodeQ(TransistorMOSFETIGBT)3电阻电阻Resistor4表面贴装型-SMD电阻种类直插型引线安装型5电阻种类氧化膜电阻金属膜电阻铝壳电阻功率线绕电阻压敏电阻贴片电阻陶瓷电阻碳膜电阻径向热敏电阻高压片

2、状玻璃釉膜电阻高压电阻玻封热敏电阻网络电阻光敏电阻可调电阻6贴片电阻型号尺寸(mm)英寸LWHMNRR10051.00±0.100.50±0.050.35±0.050.20±0.100.25±0.100402RR16081.60±0.151.60±0.150.50±0.150.30±0.150.30±0.150603RR20122.00±0.151.25±0.150.50±0.150.40±0.250.40±0.250805RR32163.20±0.151.60±0.150.55±0.150.50±0.250.

3、50±0.2512067贴片电阻型号额定功率(70℃)使用温度最大工作电压最高负荷电压阻值范围阻值误差电阻温度系数JK04021/32W-55℃--+125℃50V100V10Ω-1MΩ±5%±1%±250ppm/℃(RR1005)1/16W25V50V100Ω-1MΩ06031/10W50V100V10Ω-10MΩ100Ω-1MΩ±100ppm/℃±200ppm/℃<10Ω±250ppm/℃>1MΩ±250ppm/℃(RR1608)1/16W08051/10W100V200V(RR2012)

4、1/8W12061/8W200V400V(RR3216)1/4W8名称型号功率(W)最高使用电压(V)最高过载电压(V)阻值误差(%)阻值范围(Ω)温度系数(ppm/℃)碳膜电阻RT131/8200400±2±1±51Ω～1MΩ全系列+300/-500RT141/42505001Ω～1MΩ全系列RT151/23507001Ω～1MΩ全系列碳膜电阻可用金属膜电阻代替金属膜电阻型号RJ72RJ73RJ74RJ16RJ17DIN-4406102040207041106170719MIL-R-10509FRN50RN5

5、5RN60RN65RN70阻值范围0.1Ω-22MΩ0.1Ω-22MΩ0.1Ω-22MΩ0.1Ω-22MΩ0.1Ω-22MΩ精度%F（±1）；D（±0.5）；C（±0.25）；B（±0.10）；J(±5.0)温度系数ppm/°CC1（±100）C2（±50）C3（±25）C5（±15）C6（±10）额定功率(W)P701/8W1/4W1/2W1.0W2.0W工作电压200V250V300V350V400V尺寸(mm)L±0.503.25.910.01216D±0.301.82.43.245.4d±0.050.4

6、50.600.600.700.8010线绕电阻11线绕电阻功率尺寸(mm)阻值范围(Ω)ABCDEFGHIJKLMO75W11025163081505186166581.26270.1~8Ω90W9028183281305196146601.26270.1~9Ω120W11028183281505196166601.26270.1~12Ω150W14028183281805196196601.26270.1~15Ω180W16028183282005196216601.26270.1~18Ω225W195281

7、83282355196251601.26270.1~23Ω240W185352436102255198245761.66340.1~24Ω300W210352436102505198274761.66340.3~30Ω375W210402538122505208274781.66340.3~38Ω450W260402538123005208320781.66340.3~45Ω600W330402538123705208395781.66340.3~60Ω750W3305035501238062594001001

8、.68400.3~75Ω900W4005035501245062594701001.68400.3~90Ω1000W4605035501251062595301001.68400.5~100Ω1200W46060405515515630105351101.610500.5~120Ω1500W54060405515595630106151101.610500.5~150Ω2000W650