BSS138N H6327 MOS(场效应管) BSS138N H6327 MOSFET或IGBT开关IC BSS138N H6433 BSS138N L6327 BSS138N L6433 BSS138N TEL:88834448 BSS138NE6327 BSS138N-E6327 BSS138NE6327 TEL:88834448 BSS138NE6908