This part is a kind of semiconductor called J340.

Function of this product has 2SJ340.

Manufacturers : Sanyo Semiconductor Corporation

Image and pinout :

Some of the text within the PDF file :

Ordering number:ENN6420 P-Channel Silicon MOSFET 2SJ340 Ultrahigh-Speed Switching Applications Features · Low ON-resistance. · Ultrahigh-speed switching. · 4V drive. · Enables simplified fabrication, high-density mounting, and miniaturization in end products due to the surface mountable package. Package Dimensions unit:mm 2093A [2SJ340] 0.9 10.2 4.5 1.3 11.5 1.6 20.9 1.2 11.0 9.4 0.8 8.8 0.4 1 2 3 2.7 2.55 2.55 1 : Gate 2 : Drain 3 : Source SANYO : SMP unit:mm 2090A [2SJ340] 0.8 10.2 4.5 1.3 1.5max 8.8 9.9 3.0 2.55 1.2 2.55 2.7 1.35 1 0.8 2 3 0 to 0.3 0.4 2.55 2.55 1 : Gate 2 : Drain 3 : Source SANYO : SMP-FD Any and all SANYO products described or contained herein do not have specifications that can handle applications that requi [ ... ]

J340 PDF Datasheet Download