This part is a kind of semiconductor called P12NB30FP.
Function of this product has STP12NB30.
Manufacturers : ST Microelectronics
Image and pinout :

Some of the text within the PDF file :
www.DataSheet.co.kr STP12NB30 STP12NB30FP N - CHANNEL ENHANCEMENT MODE PowerMESH™ MOSFET PRELIMINARY DATA TYPE STP3NB60 STP12NB30F P s s s s s V DSS 300 V 300 V R DS(on) < 0.40 Ω < 0.40 Ω ID 12A 6.5 A TYPICAL RDS(on) = 0.34 Ω EXTREMELY HIGH dv/dt CAPABILITY 100% AVALANCHE TESTED VERY LOW INTRINSIC CAPACITANCES GATE CHARGE MINIMIZED 1 2 3 1 2 3 DESCRIPTION Using the latest high voltage MESH OVERLAY™ process, SGS-Thomson has designed an advanced family of power MOSFETs with outstanding performances. The new patent pending strip layout coupled with the Company’s proprietary edge termination structure, gives the lowest RDS(on) per area, exceptional avalanche and dv/dt capabilities and unrivalled gate charge and switching characteristics. APPLICATIONS s HIGH CURRENT, HIGH SPEE [ ... ]
P12NB30FP PDF Datasheet Download
