This part is a kind of semiconductor called S9014.
Function of this product has NPN General Purpose Transistors.
Manufacturers : Weitron Technology
Image and pinout :

Some of the text within the PDF file :
S9014 NPN General Purpose Transistors TO-92 1. EMITTER 2. BASE 3. COLLECTOR 1 2 3 ABSOLUTE MAXIMUM RATINGS (Ta=25 C) Rating Collector-Emitter Voltage Collector-Base Voltage Emitter-Base Voltage Collector Current Total Device Dissipation TA=25 C Junction Temperature Storage, Temperature Symbol VCEO VCBO VEBO IC PD Tj Tstg Value 45 50 5.0 100 0.4 150 -55 to +150 Unit Vdc Vdc Vdc mAdc W C C ELECTRICAL CHARACTERISTICS Characteristics Collector-Emitter Breakdown Voltage (IC= 0.1 mAdc, IB=0) Collector-Base Breakdown Voltage (IC= 100uAdc, IB=0) Emitter-Base Breakdown Voltage (IE= 100 uAdc, IC=0) Collector Cutoff Current (VCB= 50 Vdc, IE=0) Emitter Cutoff Current (VEB= 3.0V d c, I C=0) Symbol V(BR)CEO V(BR)CBO V(BR)EBO ICBO IEBO Min 45 50 5.0 Max 0.1 0.1 Unit Vdc Vdc Vdc [ ... ]
S9014 PDF Datasheet Download
