This part is a kind of semiconductor called K3116.

Function of this product has 2SK3116.

Manufacturers : NEC

Image and pinout :

Some of the text within the PDF file :

DATA SHEET MOS FIELD EFFECT TRANSISTOR 2SK3116 SWITCHING N-CHANNEL POWER MOS FET DESCRIPTION The 2SK3116 is N-channel DMOS FET device that features a low gate charge and excellent switching characteristics, and designed for high voltage applications such as switching power supply, AC adapter. ORDERING INFORMATION PART NUMBER 2SK3116 2SK3116-S 2SK3116-ZJ PACKAGE TO-220AB TO-262 TO-263 FEATURES •Low gate charge QG = 26 nC TYP. (ID = 7.5 A, VDD = 450 V, VGS = 10 V) •Gate voltage rating ±30 V •Low on-state resistance RDS(on) = 1.2 Ω MAX. (VGS = 10 V, ID = 3.75 A) •Avalanche capability ratings www.DataSheet.co.kr ABSOLUTE MAXIMUM RATINGS (TA = 25°C) Drain to Source Voltage (VGS = 0 V) Gate to Source Voltage (VDS = 0 V) Drain Current (DC) Drain Current (pulse) Note1 VDSS VGSS [ ... ]

K3116 PDF Datasheet Download