This part is a kind of semiconductor called 2SK1419.

Function of this product has N-Channel Silicon MOSFET.

Manufacturers : Sanyo Semicon Device

Image and pinout :

Some of the text within the PDF file :

Ordering number:EN3557A N-Channel Silicon MOSFET 2SK1419 Ultrahigh-Speed Switching Applications Features · Low ON resistance. · Ultrahigh-speed switching. · Converters. · Micaless package facilitating mounting. Package Dimensions unit:mm 2063A [2SK1419] 4.5 10.0 2.8 3.2 3.5 7.2 16.0 18.1 5.6 1.6 1.2 0.75 123 2.55 2.55 Specifications Absolute Maximum Ratings at Ta = 25˚C Parameter Drain-to-Source Voltage Gate-to-Source Voltage Drain Current (DC) Drain Current (Pulse) Symbol VDSS VGSS ID IDP Allowable Power Dissipation PD Channel Temperature Storage Temperature Tch Tstg 2.55 Conditions PW≤10µs, duty cycle≤1% Tc=25°C Electrical Characteristics at Ta = 25˚C Parameter Symbol Conditions Drain-to-Source Breakdown Voltage V(BR)DSS ID=1mA, VGS=0 Zero-Gate Voltage D [ ... ]

2SK1419 PDF Datasheet Download