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明纬直流转直流开关电源SD-100B-24V 5V12V DC-DC 15W50W150W500W
直流开关电源MEANWELL/明纬
RX24铝壳功率电阻器10W25W30W50W75W100W150W200W300W500W15W阻值
RX20T滑线变阻器线绕可变可调电阻25W50W100W150W200W300W500W15
