This part is a kind of semiconductor called 2N7002DW.

Function of this product has DUAL N-CHANNEL ENHANCEMENT MODE FIELD EFFECT TRANSISTOR.

Manufacturers : Diodes Incorporated

Image and pinout :

Some of the text within the PDF file :

NEW PRODUCT 2N7002DWA DUAL N-CHANNEL ENHANCEMENT MODE MOSFET Product Summary V(BR)DSS 60V RDS(ON) 8Ω @ VGS = 5V 6Ω @ VGS = 10V Package SOT363 ID TA = +25°C 170mA 200mA Description This new generation MOSFET is designed to minimize the on-state resistance (RDS(ON)), yet maintain superior switching performance, making it ideal for high-efficiency power management applications. Features  Dual N-Channel MOSFET  Low On-Resistance  Low Gate Threshold Voltage  Low Input Capacitance  Fast Switching Speed  Small Surface Mount Package  HBM Class 1C  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. “Green” Device (Note 3)  Qualified to AEC-Q101 Standards for High Reliability Applications  DC-DC Converters  Power M [ ... ]

2N7002DW PDF Datasheet Download