BUK127-50DL BUK127-50DL MOS(场效应管) BUK127-50DL,115 BUK127-50GT BUK127-50GT,115 BUK128-500DL BUK128-50DL BUK128-50DL(M539836-0742) BUK128-50DL,118 BUK128-50DL/C1,118