This part is a kind of semiconductor called 15N03H.

Function of this product has AP15N03H.

Manufacturers : Advanced Power Electronics

Image and pinout :

Some of the text within the PDF file :

AP15N03H/J Advanced Power Electronics Corp. ▼ Low Gate Charge ▼ Simple Drive Requirement N-CHANNEL ENHANCEMENT MODE POWER MOSFET D BVDSS RDS(ON) ID 30V 80mΩ 15A ▼ Fast Switching G S Description The TO-252 package is universally preferred for all commercialindustrial surface mount applications and suited for low voltage applications such as DC/DC converters. The through-hole version (AP15N03J) is available for low-profile applications. G D S TO-252(H) G D S TO-251(J) Absolute Maximum Ratings Symbol VDS VGS ID@TC=25℃ ID@TC=100℃ IDM PD@TC=25℃ TSTG TJ Parameter Drain-Source Voltage Gate-Source Voltage Continuous Drain Current, VGS @ 10V Continuous Drain Current, VGS @ 10V Pulsed Drain Current 1 Rating 30 ± 20 15 9 50 28 0.22 -55 to 150 -55 to 150 [ ... ]

15N03H PDF Datasheet Download