This part is a kind of semiconductor called 13N50CF.

Function of this product has FQPF13N50CF.

Manufacturers : Fairchild Semiconductor

Image and pinout :

Some of the text within the PDF file :

FQPF13N50CF — N-Channel QFET® FRFET® MOSFET June 2014 FQPF13N50CF N-Channel QFET® FRFET® MOSFET 500 V, 13 A, 540 mΩ Features • 13 A, 500 V, RDS(on) = 540 mΩ (Max.) @ VGS = 10 V, ID = 6.5 A • Low Gate Charge (Typ. 43 nC) • Low Crss (Typ. 20 pF) • 100% Avalanche Tested • Fast Recovery Body Diode (Typ. 100 ns) Description This N-Channel enhancement mode power MOSFET is produced using Fairchild Semiconductor’s proprietary planar stripe and DMOS technology. This advanced MOSFET technology has been especially tailored to reduce on-state resistance, and to provide superior switching performance and high avalanche energy strength. These devices are suitable for switched mode power supplies, active power factor correction (PFC), and electronic lamp ballasts. D GDS TO-220F [ ... ]

13N50CF PDF Datasheet Download