This part is a kind of semiconductor called LMUN2214LT1G.

Function of this product has Bias Resistor Transistors.

Manufacturers : Leshan Radio Company

Image and pinout :

Some of the text within the PDF file :

LESHAN RADIO COMPANY, LTD. Bias Resistor Transistor NPN Silicon Surface Mount Transistor with Monolithic Bias Resistor Network ULNM22U11NLT212S1e1riLesT1G SERIES This new series of digital transistors is designed to replace a single device and its external resistor bias network. The BRT (Bias Resistor Transistor) contains a single transistor with a monolithic bias network 3 1 resistor. The BRT eliminates these individual components by integrating them into a single device. The use of a BRT can reduce both system cost and board space. The device is housed in the SOT-23 package which is designed for low power surface mount applications. • Simplifies Circuit Design • Reduces Board Space and Component Count • The SOT-23 package can be soldered using wave or reflow. The modified gull [ ... ]

LMUN2214LT1G PDF Datasheet Download