ztx550晶体管的PDF资料 ZTX550制造商 : Zetex Semiconductors 说明 : SILICON PLANAR MEDIUM POWER TRANSISTORS ZTX550制造商 : ZETEX[Zetex说明 : SILICON PLANAR MEDIUM POWER TRANSISTORS ZTX550制造商 : Zetex说明 : PNP silicon planar medium power transistor