晶闸管T1971N36TOFT1971N38TOFT1971N40TOF
晶闸管可控硅T1971N42TOFT1401N36TOF
晶闸管T1601N32TOFT1601N34TOFT1601N36TOF
1971TOFT晶闸管平板
晶闸管1971T1971N36TOFT1T971N
晶闸管平板T1971N36TOFT1971N38TOF
1971晶闸管TOFT平板
1971TOFTTOF36