View 2sk3285 datasheet:

Ordering number:ENN6358 N-Channel Silicon MOSFET 2SK3285 DC/DC Converter Applications Features Package Dimensions · Low ON resistance. unit:mm · 4V drive. 2093A [2SK3285] 4.5 10.2 1.3 1.2 0.8 0.4 1 2 3 1 : Gate 2 : Drain 3 : Source 2.55 2.55 SANYO : SMP unit:mm 2169 [2SK3285] 4.5 10.2 1.3 1 2 3 1.2 0.8 2.55 2.55 0.4 1 : Gate 2 : Drain 3 : Source 2.55 2.55 SANYO : SMP-FA Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative neares