This part is a kind of semiconductor called K2365.

Function of this product has 2SK2365.

Manufacturers : NEC

Image and pinout :

Some of the text within the PDF file :

DATA SHEET MOS FIELD EFFECT TRANSISTORS 2SK2365/2SK2366 SWITCHING N-CHANNEL POWER MOS FET INDUSTRIAL USE DESCRIPTION The 2SK2365, 2SK2365-Z/2SK2366, 2SK2366-Z is N-Channel MOS Field Effect Transistor designed for high voltage switching applications. FEATURES • Low On-Resistance 2SK2365: RDS(on) = 0.5 Ω (VGS = 10 V, ID = 5.0 A) 2SK2366: RDS(on) = 0.6 Ω (VGS = 10 V, ID = 5.0 A) • Low Ciss Ciss = 1 600 pF TYP. • High Avalanche Capability Ratings • Isolate TO-220 Package ABSOLUTE MAXIMUM RATINGS (TA = 25 ˚C) Drain to Source Voltage (2SK2365/2SK2366) VDSS 450/500 V Gate to Source Voltage VGSS ±30 V Drain Current (DC) ID(DC) ±10 A Drain Current (pulse)* ID(pulse) ±40 A Total Power Dissipation (Tc = 25 ˚C) PT1 75 W Total Power Dissipation (TA = 25 ˚C) PT2 1. [ ... ]

K2365 PDF Datasheet Download