This part is a kind of semiconductor called APM4416.

Function of this product has N-Channel Enhancement Mode MOSFET.

Manufacturers : Anpec Electronics Coropration

Image and pinout :

Some of the text within the PDF file :

APM4416 N-Channel Enhancement Mode MOSFET Features • • Pin Description SO-8 30V/8A , RDS(ON)=15mΩ(typ.) @ VGS=10V RDS(ON)=22mΩ(typ.) @ VGS=4.5V Super High Dense Cell Design for Extremely Low RDS(ON) Reliable and Rugged SO-8 Package Top View S S S G 1 2 3 4 8 7 6 5 D D D D • • Applications • Power Management in Notebook Computer , Portable Equipment and Battery Powered Systems. G D Ordering and Marking Information APM 4416 H a n d lin g C o d e Tem p. R ange P ackage C ode S N-Channel MOSFET P ackage C ode K : S O -8 O p e ra tin g J u n c tio n T e m p . R a n g e C : -5 5 to 1 5 0 ° C H a n d lin g C o d e TU : Tube TR : Tape & Reel A P M 4416 K : A P M 4416 XXXXX X X X X X - D a te C o d e Absolute Maximum Ratings Symbol VDSS VGSS ID* IDM [ ... ]

APM4416 PDF Datasheet Download