This part is a kind of semiconductor called 8N50NZ.
Function of this product has N-Channel MOSFET.
Manufacturers : Fairchild Semiconductor
Image and pinout :
Some of the text within the PDF file :
FDP8N50NZ / FDPF8N50NZ — N-Channel UniFETTM II MOSFET FDP8N50NZ / FDPF8N50NZ N-Channel UniFETTM II MOSFET 500 V, 8 A, 850 m October 2013 Features • RDS(on) = 770 m (Typ.) @ VGS = 10 V, ID = 4 A • Low Gate Charge (Typ. 14 nC) • Low Crss (Typ. 5 pF) • 100% Avalanche Tested • Improve dv/dt Capability • ESD Improved Capability • RoHS Compliant Applications • LCD/LED TV • Lighting • Uninterruptible Power Supply • AC-DC Power Supply Description UniFETTM II MOSFET is Fairchild Semiconductor’s high voltage MOSFET family based on advanced planar stripe and DMOS technology. This advanced MOSFET family has the smallest on-state resistance among the planar MOSFET, and also provides superior switching performance and higher avalanche energy strength. In addition [ ... ]