This part is a kind of semiconductor called K4075.

Function of this product has MOS FIELD EFFECT TRANSISTOR.

Manufacturers : NEC

Image and pinout :

Some of the text within the PDF file :

DATA SHEET MOS FIELD EFFECT TRANSISTOR 2SK4075 SWITCHING N-CHANNEL POWER MOS FET DESCRIPTION The 2SK4075 is N-channel MOS FET designed for high current switching applications. ORDERING INFORMATION PART NUMBER LEAD PLATING 2SK4075-ZK-E1-AY Pure Sn (Tin) 2SK4075-ZK-E2-AY PACKING Tape 2500 p/reel PACKAGE TO-252 (MP-3ZK) typ. 0.27 g FEATURES • Low on-state resistance RDS(on)1 = 6.7 mΩ MAX. (VGS = 10 V, ID = 30 A) RDS(on)2 = 10 mΩ MAX. (VGS = 4.5 V, ID = 15 A) • Low Ciss: Ciss = 2900 pF TYP. • Logic level drive type ABSOLUTE MAXIMUM RATINGS (TA = 25°C) Drain to Source Voltage (VGS = 0 V) VDSS 40 V Gate to Source Voltage (VDS = 0 V) VGSS ±20 V Drain Current (DC) (TC = 25°C) Drain Current (pulse) Note1 ID(DC) ID(pulse) ±60 ±180 A A Total Power Dissipation (TC = 25 [ ... ]

K4075 PDF Datasheet Download