STP12NM50MOSFET N-CH 500V 12A TO-220|STMICROELECTRONICS|Lead free|RoHS Compliant STP12NM50 STP12NM50FDMOSFET N-CH 500V 12A TO-220|STMICROELECTRONICS|Lead free|RoHS Compliant IXFP16N50P IXTC13N50