晶闸管平板T1866N18TOFT1866N20TOF
晶闸管T1869N18TOFT1869N20TOFT1869N22TOF
晶闸管T1866N18TOFT1866N20TOFT1866N22TOF
1866晶闸管TOFT平板
晶闸管T1851N60TOFT1851N65TOFT1851N70TOF
