This part is a kind of semiconductor called 740.

Function of this product has 400V N-Channel MOSFET.

Manufacturers : GFD

Image and pinout :

Some of the text within the PDF file :

400V N-Channel MOSFET GENERAL DESCRIPTION This Power MOSFET is produced using advanced 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 efficiency switched mode power supplies, active power factor correction based on half bridge topology. 740 VDSS RDS(ON) ID 400V 0.55Ω 10.5A Features • 10.5A, 400V, RDS(on) = 0.55Ω @VGS = 10 V • Low gate charge ( typical 30nC) • Fast switching • 100% avalanche tested • Improved dv/dt capability Ordering Information PART NUMBER PACKAGE BRAND 740 TO-220 0GFD www.goford.cn TEL：0755-86350980 FAX：0755-86350963 740 Abs [ ... ]

740 PDF Datasheet Download