BUK661R8-30C-VB BUK661R9-40C BUK661R9-40C,118 BUK661R9-40C-VB BUK662R4-40C BUK662R4-40C MOS(场效应管) BUK662R4-40C,118 BUK662R4-40C-VB BUK662R5-30C BUK662R5-30C,118