2SK4079A-T1B 2SK4079A-T1B-AT 2SK4079B 2SK4079B(1)-T1B 2SK4079B(1)-T1B/QN7002B-T1B-AT 2SK4079B(1)-T1B-AT 2SK4079B-T1B 2SK4079-T1B-AT 2SK408 2SK4080