IPD50R250CP 5R250P IPD50R280CE IPD50R280CE MOS(场效应管) IPD50R280CE(SP001117680) IPD50R280CE(SP001396382) IPD50R280CE/RFS IPD50R280CE-100K IPD50R280CEATMA1 IPD50R280CEAUMA1 IPD50R280CEBTMA1