This part is a kind of semiconductor called FS40SM-6A.

Function of this product has High-Speed Switching Use Nch Power MOS FET.

Manufacturers : Renesas

Image and pinout :

Some of the text within the PDF file :

FS40SM-6A High-Speed Switching Use Nch Power MOS FET REJ03G0278-0100 Rev.1.00 Aug.20.2004 Features • • • • Drive voltage : 10 V VDSS : 300 V rDS(ON) (max) : 0.105 Ω ID : 40 A Outline TO-3P 4 2, 4 1 1. 2. 3. 4. Gate Drain Source Drain 1 2 3 3 Applications Switching mode power supply, plasma display TVs, DC-DC converters, etc. Maximum Ratings (Tc = 25°C) Parameter Drain-source voltage Gate-source voltage Drain current Drain current (Pulsed) Maximum power dissipation Channel temperature Storage temperature Mass Symbol VDSS VGSS ID IDM PD Tch Tstg Ratings 300 ±30 40 120 250 – 55 to +150 – 55 to +150 4.8 Unit V V A A W °C °C g Conditions VGS = 0 V VDS = 0 V Typical value Rev.1.00, Aug.20.2004, page 1 of 6 http:// FS40SM-6A Electrical Charac [ ... ]

FS40SM-6A PDF Datasheet Download