This part is a kind of semiconductor called 2SK1254.

Function of this product has Silicon N Channel MOS FET.

Manufacturers : Renesas

Image and pinout :

Some of the text within the PDF file :

2SK1254(L), 2SK1254(S) Silicon N Channel MOS FET Application High speed power switching Features • Low on-resistance • High speed switching • 4 V gate drive device  Can be driven from 5 V source • Suitable for motor drive, DC-DC converter, power switch and solenoid drive REJ03G0917-0200 (Previous: ADE-208-1255) Rev.2.00 Sep 07, 2005 Outline RENESAS Package code: PRSS0004ZD-A (Package name: DPAK(L)-(1)) 4 RENESAS Package code: PRSS0004ZD-C (Package name: DPAK(S)) 4 G 123 123 D S 1. Gate 2. Drain 3. Source 4. Drain Rev.2.00 Sep 07, 2005 page 1 of 7 2SK1254(L), 2SK1254(S) Absolute Maximum Ratings Item Drain to source voltage Gate to source voltage Drain current Drain peak current Body to drain diode reverse drain current Channel dissipation Channel temperature Storage te [ ... ]

2SK1254 PDF Datasheet Download