2SK1531 TO-247
2SK1531/ TO-247 TOSHIBA/东芝
2SK1536 TO-247
2SK1537 TO-247
2SK1537,K1537 TO-247
2SK1538 TO-247
2SK1538,K1538 TO-247
2SK1539 TO-247
2SK1539/ TO-247 新电源
2SK1544 TO-247 TOSHIBA