This part is a kind of semiconductor called AP03N70H-H.
Function of this product has N-CHANNEL ENHANCEMENT MODE POWER MOSFET.
Manufacturers : Advanced Power Electronics
Image and pinout :

Some of the text within the PDF file :
AP03N70H/J-H Pb Free Plating Product Advanced Power Electronics Corp. ¡¿ ¡¿ ¡¿ ¡¿ Repetitive Avalanche Rated Fast Switching Speed Simple Drive Requirement RoHS Compliant G S N-CHANNEL ENHANCEMENT MODE POWER MOSFET D BVDSS RDS(ON) ID 700V 4.4£[ 2.5A Description The TO-252 package is universally preferred for all commercialindustrial surface mount applications and suited for AC/DC converters. The through-hole version (AP03N70J) is available for lowprofile applications. G D S TO-252(H) G DS TO-251(J) Absolute Maximum Ratings Symbol VDS VGS ID@TC=25¢J ID@TC=100¢J IDM PD@TC=25¢J EAS IAR TSTG TJ Parameter Drain-Source Voltage Gate-Source Voltage Continuous Drain Current, VGS @ 10V Continuous Drain Current, VGS @ 10V Pulsed Drain Current 1 Rating 700 ±30 2.5 1.6 8 54.3 0.4 [ ... ]
AP03N70H-H PDF Datasheet Download
