This part is a kind of semiconductor called P8NA50.

Function of this product has STP8NA50.

Manufacturers : ST Microelectronics

Image and pinout :

Some of the text within the PDF file :

STP8NA50 STP8NA50FI N - CHANNEL ENHANCEMENT MODE FAST POWER MOS TRANSISTOR TYPE STP8NA50 STP8NA50FI s s s s s s s V DSS 500 V 500 V R DS( on) < 0.85 Ω < 0.85 Ω ID 8A 4.5 A TYPICAL RDS(on) = 0.7 Ω ± 30V GATE TO SOURCE VOLTAGE RATING 100% AVALANCHE TESTED REPETITIVE AVALANCHE DATA AT 100oC LOW INTRINSIC CAPACITANCES GATE GHARGE MINIMIZED REDUCED THRESHOLD VOLTAGE SPREAD TO-220 3 1 2 1 2 3 DESCRIPTION This series of POWER MOSFETS represents the most advanced high voltage technology. The optimized cell layout coupled with a new proprietary edge termination concur to give the device low RDS(on) and gate charge, unequalled ruggedness and superior switching performance. APPLICATIONS HIGH CURRENT, HIGH SPEED SWITCHING s SWITCH MODE POWER SUPPLIES (SMPS) s DC-AC CO [ ... ]

P8NA50 PDF Datasheet Download