This part is a kind of semiconductor called K2504.

Function of this product has 2SK2504.

Manufacturers : Rohm

Image and pinout :

Some of the text within the PDF file :

2SK2504 Transistors 4V Drive Nch MOS FET 2SK2504 zStructure Silicon N-channel MOS FET zExternal dimensions (Unit : mm) CPT3 6.5 5.1 2.3 0.5 zFeatures 1) Low On-resistance. 2) Fast switching speed. 3) Wide SOA (safe operating area). 4) 4V drive. 5) Drive circuits can be simple. 6) Parallel use is easy. 5.5 1.5 0.9 0.75 0.65 (1)Gate (2)Drain (3)Source 0.9 (1) 2.3 (2) (3) 2.3 0.8Min. 0.5 1.0 Abbreviated symbol : K2504 zApplications Switching zPackaging specifications Package Type Code Basic ordering unit (pieces) 2SK2504 Taping TL 2500 zInner circuit (1) Gate (2) Drain (3) Source (1) (2) (3) zAbsolute maximum ratings (Ta=25°C) Parameter Drain-source voltage Gate-source voltage Continuous Drain current Reverse drain current Pulsed Continuous Pulsed Sym [ ... ]

K2504 PDF Datasheet Download