This part is a kind of semiconductor called AP88N30W.

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 :

AP88N30W RoHS-compliant Product Advanced Power Electronics Corp. ▼ Simple Drive Requirement ▼ Lower On-resistance ▼ High Speed Switching G S D N-CHANNEL ENHANCEMENT MODE POWER MOSFET BVDSS RDS(ON) ID 300V 48mΩ 88A Description AP88N30 from APEC provide the designer with the best combination of fast switching , low on-resistance and cost-effectiveness . The TO-3P package is preferred for commercial & industrial applications with higher power level preclusion than TO-220 device. G D S TO-3P Absolute Maximum Ratings Symbol VDS VGS ID@TC=25℃ IDM IDR IDR(PULSE) PD@TC=25℃ IAR EAR TSTG TJ Parameter Drain-Source Voltage Gate-Source Voltage Continuous Drain Current, VGS @ 10V Pulsed Drain Current 1 Rating 300 ±30 88 270 88 1 Units V V A A A A W W/℃ A mJ ℃ ℃ Body-Drain Di [ ... ]

AP88N30W PDF Datasheet Download