2SK2231 2SK2231 K2231 2SK2231 MOS(场效应管) 2SK2231(Q) 2SK2231(T6LND) 2SK2231(TE16L 2SK2231(TE16L) 2SK2231(TE16L1 2SK2231(TE16L1，N) 2SK2231(TE16L1,NQ)