This part is a kind of semiconductor called P5NA80.
Function of this product has STP5NA80.
Manufacturers : STMicroelectronics
Image and pinout :

Some of the text within the PDF file :
( DataSheet : ) STP5NA80 STP5NA80FI N - CHANNEL ENHANCEMENT MODE FAST POWER MOS TRANSISTOR TYPE STP5NA80 STP5NA80FI VDSS 800 V 800 V RDS(on) < 2.4 Ω < 2.4 Ω ID 4.7 A 2.8 A s TYPICAL RDS(on) = 1.8 Ω s ± 30V GATE TO SOURCE VOLTAGE RATING s 100% AVALANCHE TESTED s REPETITIVE AVALANCHE DATA AT 100oC s LOW INTRINSIC CAPACITANCES s GATE GHARGE MINIMIZED s REDUCED THRESHOLD VOLTAGE SPREAD 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 s HIGH CURRENT, HIGH SPEED SWITCHING s SWITCH MODE POWER SUPPLIES (SMPS) s DC-AC CONV [ ... ]
P5NA80 PDF Datasheet Download
