This part is a kind of semiconductor called AON7426.

Function of this product has 30V N-Channel MOSFET.

Manufacturers : Alpha & Omega Semiconductors

Image and pinout :

Some of the text within the PDF file :

www.DataSheet.co.kr AON7426 30V N-Channel MOSFET General Description The AON7426 combines advanced trench MOSFET technology with a low resistance package to provide extremely low RDS(ON). This device is ideal for load switch and battery protection applications. Product Summary VDS ID (at VGS=10V) RDS(ON) (at VGS=10V) RDS(ON) (at VGS = 4.5V) 30V 40A < 5.5mΩ < 8.3mΩ ESD protected 100% Rg Tested Top View DFN 3x3 EP Bottom View D Top View 1 2 3 4 8 7 6 5 G Pin 1 S Absolute Maximum Ratings TA=25° C unless otherwise noted Parameter Symbol Drain-Source Voltage VDS Gate-Source Voltage Continuous Drain Current G Pulsed Drain Current Continuous Drain Current Power Dissipation B Power Dissipation A C Maximum 30 ±20 40 31 130 18.6 14.9 35 14 3.1 2 -55 to 150 Units V V A VGS TC=25 [ ... ]

AON7426 PDF Datasheet Download