This part is a kind of semiconductor called AP88L02S.

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 :

Advanced Power Electronics Corp. AP88L02S/P N-CHANNEL ENHANCEMENT MODE POWER MOSFET ▼ Low Gate Charge ▼ Simple Drive Requirement ▼ Fast Switching Description G D S BVDSS RDS(ON) ID 25V 5mΩ 88A The Advanced Power MOSFETs from APEC provide the designer with the best combination of fast switching, ruggedized device design, low on-resistance and cost-effectiveness. The TO-263 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 (AP88L02P) is available for low-profile applications. Absolute Maximum Ratings Symbol Parameter VDS VGS ID@TC=25℃ ID@TC=100℃ IDM PD@TC=25℃ Drain-Source Voltage Gate-Source Voltage Continuous Drain Current, VGS @ 10V Cont [ ... ]

AP88L02S PDF Datasheet Download