This part is a kind of semiconductor called 33N25.

Function of this product has FDB33N25.

Manufacturers : Fairchild Semiconductor

Image and pinout :

Some of the text within the PDF file :

FDB33N25 250V N-Channel MOSFET September 2005 UniFET FDB33N25 250V N-Channel MOSFET Features • 33A, 250V, RDS(on) = 0.094Ω @VGS = 10 V • Low gate charge ( typical 36.8 nC) • Low Crss ( typical 39 pF) • Fast switching • 100% avalanche tested • Improved dv/dt capability TM Description These N-Channel enhancement mode power field effect transistors are produced using Fairchild’s proprietary, planar stripe, DMOS technology. This advanced technology has been especially tailored to minimize on-state resistance, provide superior switching performance, and withstand high energy pulse in the avalanche and commutation mode. These devices are well suited for high efficient switched mode power supplies and active power factor correction. D D { z G{   z z { G S S Absolute [ ... ]

33N25 PDF Datasheet Download