This part is a kind of semiconductor called 2N5771.
Function of this product has SWITCHING TRANSISTOR.
Manufacturers : Motorola
Image and pinout :

Some of the text within the PDF file :
MAXIMUM RATINGS Rating Collector-Emitter Voltage Collector-Base Voltage Emitter-Base Voltage Collector Current Continuous @Tota^ Device Dissipation Ta = 25°C Derate above 25°C @Total Device Dissipation Tc = 25°C Derate above 25°C Operating and Storage Junction Temperature Range Lead Temperature Symbol vCEO vCBO VEBO 'C PD Pd TJ- Tstg Value 15 15 4.5 50 0.625 1.0 -55 to +150 Unit Vdc Vdc Vdc mA Watts mW/°C Watt mW/°C °C TL 260 °c 2N5771 CASE 29-02, STYLE 1 TO-92 (TO-226AA) SWITCHING TRANSISTOR PNP SILICON ELECTRICAL CHARACTERISTICS (Ta = 25°C unless otherwise noted.) Characteristic OFF CHARACTERISTICS Collector-Emitter Breakdown Voltage dc = 3.0 mA)(1) Collector-Emitter Breakdown Voltage dc = 100 /xA) Collector-Base Breakdown Voltage dc = 100 vA) Emitter-Base Breakdown V [ ... ]
2N5771 PDF Datasheet Download
