This part is a kind of semiconductor called K4004-01MR.

Function of this product has Power MOSFET.

Manufacturers : Fuji

Image and pinout :

Some of the text within the PDF file :

This m aterial and the inform ation herein is the p roperty of Fuji Electric Device Technology C o.,Ltd. They s hall be neither reprod uced, copied,lent, or disclosed in any way whatsoever for the use of any third party nor used for the m anufacturing purp oses without the express written consent of Fuji Electric Device Technology C o.,Ltd. DRAWN DATE Jan.-31-'05 CHECKED Jan.-31-'05 Jan.-31-'05 Date Spec. No. Device Name Type Name : : : : NAME APPROVED SPECIFICATION Jan.-31-2005 2SK4004-01MR Power MOSFET MS5F5983 DWG.NO. MS5F5983 1 / 18 Fuji Electric Device Technology Co.,Ltd. H04-004-05 Free Datasheet http://www.net/ This m aterial and the inform ation herein is the p roperty of Fuji Electric Device Technology C o.,Ltd. They s hall be neither reprod uced, copi [ ... ]

K4004-01MR PDF Datasheet Download