This part is a kind of semiconductor called K3570.

Function of this product has 2SK3570.

Manufacturers : NEC Electronics

Image and pinout :

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DATA SHEET MOS FIELD EFFECT TRANSISTOR 2SK3570 SWITCHING N-CHANNEL POWER MOS FET DESCRIPTION The 2SK3570 is N-channel MOS FET device that features a low on-state resistance and excellent switching characteristics, designed for low voltage high current applications such as DC/DC converter with synchronous rectifier. 5 ORDERING INFORMATION PART NUMBER 2SK3570 2SK3570-S 2SK3570-ZK PACKAGE TO-220AB TO-262 TO-263 TO-220SMD Note FEATURES •4.5V drive available. •Low on-state resistance, RDS(on)1 = 12 mΩ MAX. (VGS = 10 V, ID = 24 A) •Low gate charge QG = 23 nC TYP. (VDD = 16 V, VGS = 10 V, ID = 48 A) •Built-in gate protection diode •Surface mount device available 2SK3570-Z Note TO-220SMD package is produced only in Japan. ABSOLUTE MAXIMUM RATINGS (TA = 25° [ ... ]

K3570 PDF Datasheet Download