This part is a kind of semiconductor called 2SK1460.
Function of this product has Ultrahigh-Speed Switching Applications.
Manufacturers : Sanyo Semicon Device
Image and pinout :
Some of the text within the PDF file :
Ordering number:EN3463A N-Channel Silicon MOSFET 2SK1460 Ultrahigh-Speed Switching Applications Features · Low ON-state resistance. · Ultrahigh-speed switching. · Micaless package facilitating mounting. Package Dimensions unit:mm 2078B [2SK1460] 10.0 3.5 4.5 2.8 3.2 7.2 16.0 16.1 0.9 1.2 14.0 3.6 0.7 0.75 1 2 3 Specifications Absolute Maximum Ratings at Ta = 25˚C Parameter Drain-to-Source Voltage Gate-to-Source Voltage Drain Current (DC) Drain Current (Pulse) Allowable Power Dissipation Channel Temperature Symbol VDSS VGSS ID IDP PD Tch Tstg PW≤10µs, duty cycle≤1% Tc=25°C 2.55 2.55 1 : Gate 2 : Drain 3 : Source SANYO : TO-220FI (LS) Conditions 2.4 0.6 1.2 Ratings 900 ±30 3.5 7 2.0 40 150 –55 to +150 Unit V V A A W W ˚C ˚C Storage T [ ... ]