This part is a kind of semiconductor called 2N7002.

Function of this product has N-Channel Enhancement-Mode Vertical DMOS FETs.

Manufacturers : Supertex Inc

Image and pinout :

Some of the text within the PDF file :

Supertex inc. 2N7002 N-Channel Enhancement-Mode Vertical DMOS FETs Features ►►Free from secondary breakdown ►►Low power drive requirement ►►Ease of paralleling ►►Low CISS and fast switching speeds ►►Excellent thermal stability ►►Integral source-drain diode ►►High input impedance and high gain Applications ►►Motor controls ►► Converters ►► Amplifiers ►► Switches ►►Power supply circuits ►►Drivers (relays, hammers, solenoids, lamps, memories, displays, bipolar transistors, etc.) General Description The Supertex 2N7002 is an enhancement-mode (normallyoff) transistor that utilizes a vertical DMOS structure and Supertex’s well-proven silicon-gate manufacturing process. This combination produces a device with the power handling capab [ ... ]

2N7002 PDF Datasheet Download