STGD5NB120 STGD5NB120S STGD5NB120SZ STGD5NB120SZ D5NB120SZ STGD5NB120SZ-1 STGD5NB120SZT4 STGD6M65DF2 STGD6NC60H STGD6NC60H GD6NC60H STGD6NC60H MOS(场效应管)