This part is a kind of semiconductor called APM2055N.

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

Manufacturers : Anpec Electronics

Image and pinout :

Some of the text within the PDF file :

APM2055N N-Channel Enhancement Mode MOSFET Features • 20V/12A, RDS(ON)=55mΩ(typ.) @ V =10V GS RDS(ON)=75mΩ(typ.) @ VGS=4.5V RDS(ON)=140mΩ(typ.) @ VGS=2.5V • Super High Dense Cell Design • High Power and Current Handling Capability • TO-252 and SOT-223 Packages Applications • Switching Regulators • Switching Converters Pin Description 123 GD S Top View of TO-252 1 23 GDS Top View of SOT-223 D G Ordering and Marking Information S N-Channel MOSFET APM2055N H andling C ode Temp. Range Package Code Package Code U : TO -252 V : SO T-223 O peration Junction Tem p. Range C : -55 to 150° C H andling C ode TR : Tape & Reel APM2055N U : APM2055N XXXXX XX XXX - D ate Code APM2055N V : APM2055N XXXXX XX XXX - D ate Code Absolute Maximum Ratings (TA [ ... ]

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