This part is a kind of semiconductor called AOD4184.

Function of this product has N-Channel 40-V (D-S) MOSFET.

Manufacturers : Freescale

Image and pinout :

Some of the text within the PDF file :

Freescale AOD4184/ MCD4184 N-Channel 40-V (D-S) MOSFET Key Features: • Low rDS(on) trench technology • Low thermal impedance • Fast switching speed Typical Applications: • White LED boost converters • Automotive Systems • Industrial DC/DC Conversion Circuits PRODUCT SUMMARY rDS(on) (mΩ) 12 @ VGS = 10V 14 @ VGS = 4.5V VDS (V) 40 ID(A) 53 49 ABSOLUTE MAXIMUM RATINGS (TA = 25°C UNLESS OTHERWISE NOTED) Parameter Symbol Limit VDS Drain-Source Voltage 40 VGS Gate-Source Voltage ±20 TA=25°C ID 53 Continuous Drain Current a IDM Pulsed Drain Current b 200 IS 44 Continuous Source Current (Diode Conduction) a a T =25°C P 50 Power Dissipation A D TJ, Tstg -55 to 150 Operating Junction and Storage Temperature Range Units V A A W °C THERMAL RESISTANCE RATINGS Parameter Maximum J [ ... ]

AOD4184 PDF Datasheet Download