This part is a kind of semiconductor called FJV1845.

Function of this product has NPN Epitaxial Silicon Transistor.

Manufacturers : Fairchild Semiconductor

Image and pinout :

Some of the text within the PDF file :

FJV1845 FJV1845 Amplifier Transistor • Complement to FJV992 3 2 1 SOT-23 1. Base 2. Emitter 3. Collector NPN Epitaxial Silicon Transistor Absolute Maximum Ratings Ta=25°C unless otherwise noted Symbol VCBO VCEO VEBO IC IB PC TJ TSTG Parameter Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Collector Current Base Current Collector Dissipation Junction Temperature Storage Temperature Value 120 120 5 50 10 300 150 -55 ~ 150 Units V V V mA mA mW °C °C Electrical Characteristics Ta=25°C unless otherwise noted Symbol ICBO IEBO hFE1 hFE2 VBE (on) VCE (sat) fT Cob Parameter Collector Cut-off Current Emitter Cut-off Current DC Current Gain Base-Emitter On Voltage Collector-Emitter Saturation Voltage Current Gain Bandwidth Product Output Capacitance Test Condition V [ ... ]

FJV1845 PDF Datasheet Download