This part is a kind of semiconductor called K3377.

Function of this product has 2SK3377.

Manufacturers : NEC

Image and pinout :

Some of the text within the PDF file :

DATA SHEET MOS FIELD EFFECT TRANSISTOR 2SK3377 SWITCHING N-CHANNEL POWER MOS FET INDUSTRIAL USE ORDERING INFORMATION PART NUMBER 2SK3377 2SK3377-Z PACKAGE TO-251 TO-252 DESCRIPTION The 2SK3377 is N-Channel MOS Field Effect Transistor designed for high current switching applications. FEATURES • Low On-state Resistance 5 5 5 RDS(on)1 = 44 mΩ MAX. (VGS = 10 V, ID = 10 A) RDS(on)2 = 78 mΩ MAX. (VGS = 4.0 V, ID = 10 A) • Low Ciss : Ciss = 760 pF TYP. • Built-in Gate Protection Diode • TO-251/TO-252 package (TO-251) ABSOLUTE MAXIMUM RATINGS (TA = 25 °C) Drain to Source Voltage Gate to Source Voltage Drain Current (DC) 5 Drain Current (Pulse) Note1 VDSS VGSS ID(DC) ID(pulse) PT PT Tch Tstg Note2 Note2 60 ±20 ±20 ±50 30 1.0 150 –55 to +150 15 23 V V A A W W °C °C A mJ [ ... ]

K3377 PDF Datasheet Download