This part is a kind of semiconductor called SSP4N60B.

Function of this product has 600V N-Channel MOSFET.

Manufacturers : Fairchild Semiconductor

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Some of the text within the PDF file :

SSP4N60B/SSS4N60B SSP4N60B/SSS4N60B 600V N-Channel MOSFET General Description These N-Channel enhancement mode power field effect transistors are produced using Fairchild’s proprietary, planar, 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 switch mode power supplies. Features • • • • • • • 4.0A, 600V, RDS(on) = 2.5Ω @VGS = 10 V Low gate charge ( typical 22 nC) Low Crss ( typical 14 pF) Fast switching 100% avalanche tested Improved dv/dt capability TO-220F package isolation = 4.0kV (Note 6) D G G DS TO-220 SSP Series GD S TO-220F SSS Series S Absolu [ ... ]

SSP4N60B PDF Datasheet Download