This part is a kind of semiconductor called APM3054NU.

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

Manufacturers : Etc

Image and pinout :

Some of the text within the PDF file :

APM3054N N-Channel Enhancement Mode MOSFET Features • • • • 30V/15A, RDS(ON)=48mΩ(typ.) @ VGS=10V RDS(ON)=75mΩ(typ.) @ VGS=4.5V Super High Dense Cell Design High Power and Current Handling Capability TO-252 and SOT-223 Package Pin Description 1 2 3 1 2 3 G D S G D S Top View of TO-252 Top View of SOT-223 Applications • • 1 2 3 Switching Regulators Switching Converters G D S Top View of SOT-89 Ordering and Marking Information A P M 3 054 N H a n d lin g C o d e Tem p. R ange Package C ode Package C ode D : S O T -8 9 U : T O -2 5 2 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 2 5 ° C H a n d lin g C o d e TR : Tape & R eel V : S O T -2 2 3 AP M 3054N U : AP M 3054N XXXXX XXXXX - D a te C o d e A P M 3 0 5 4 N D /V : AP M 3054N XXX [ ... ]

APM3054NU PDF Datasheet Download