View 2sk3449 datasheet:

Ordering number : ENN6672 2SK3449 N-Channel Silicon MOSFET 2SK3449 DC / DC Converter Applications Features Package Dimensions • Low ON-resistance. unit : mm • Ultrahigh-speed switching. 2190 • 4V drive. [2SK3449] 8.0 4.0 3.3 1.0 1.0 3.0 1.6 0.8 0.8 0.75 0.7 1 : Source 1 2 3 2 : Drain 3 : Gate Specifications 2.4 4.8 SANYO : TO-126ML Absolute Maximum Ratings at Ta=25°C Parameter Symbol Conditions Ratings Unit Drain-to-Source Voltage VDSS 60 V Gate-to-Source Voltage VGSS ±20 V Drain Current (DC) ID 4.8 A Drain Current (Pulse) IDP PW?10µs, duty cycle?1% 19.2 A 1 W Allowable Power Dissipation PD Tc=25°C10 W Channel Temperature Tch 150 °C Storage Temperature Tstg --55 to +150 °C Electrical Characteristics at Ta=25°C Ratings Parameter Symbol Conditions Unit