This part is a kind of semiconductor called ME4856-G.

Function of this product has N-Channel 30-V(D-S) MOSFET.

Manufacturers : Matsuki

Image and pinout :

Some of the text within the PDF file :

N-Channel 30-V(D-S) MOSFET GENERAL DESCRIPTION The ME4856 is the N-Channel logic enhancement mode power field effect transistors are produced using high cell density , DMOS trench technology. This high density process is especially tailored to minimize on-state resistance. These devices are particularly suited for low voltage application such as cellular phone and notebook computer power management and other battery powered circuits where high-side switching , and low in-line power loss are needed in a very small outline surface mount package. PIN CONFIGURATION (SOP-8) Top View ME4856/ME4856-G FEATURES ● RDS(ON)≦6mΩ@VGS=10V ● RDS(ON)≦8.5mΩ@VGS=4.5V ● Super high density cell design for extremely low RDS(ON) ● Exceptional on-resistance and maximum DC current capability APPLI [ ... ]

ME4856-G PDF Datasheet Download