SSM3K318R MOS(场效应管) SSM3K318R,LF SSM3K318R,LF(B SSM3K318R,LF(T SSM3K318R.LF SSM3K318RLF(T SSM3K318T SSM3K318T(T5L,F,T) SSM3K318T,LF SSM3K318TLF