GDS GDS TO-220FB-3L TO-263-2L Applications * Switching application * Power Management for DC/DC Ordering and Marking Information N-Channel MOSFET P B HY4004 HY4004 YYXXXJWW G YYXXXJWW G Package Code P : TO-220FB-3L Date Code YYXXX WW B: TO-263-2L Assembly Material G : Lea.