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14种70种TO/-22三端稳压管套装L7005/78127815/7905/7912/LM831ZV
滤波正负整流散件电路板或双电源78127815套件稳压79157912/
套件双电源或/78127815整流电路板滤波正负散件7915稳压7912
k78127815dc电源模块k7805转1 7809 3ar37803 78x6 3ar3-- 24v