This part is a kind of semiconductor called 2SA1611.
Function of this product has Transistor.
Manufacturers : TRANSYS
Image and pinout :

Some of the text within the PDF file :
Transys Electronics L I M I T E D SOT-323 Plastic-Encapsulated Transistors SOT-323 2SA1611 FEATURES Power dissipation PCM TRANSISTOR (PNP) 1. BASE 2. EMITTER 3. COLLECTOR 1. 25¡ À0. 05 1. 01 R EF : 0.15 W (Tamb=25℃) 2. 30¡ À0. 05 Collector current : -0.1 A ICM Collector-base voltage V V(BR)CBO : -60 Operating and storage junction temperature range TJ, Tstg: -55℃ to +150℃ 1. 30¡ À0. 03 Unit: mm ELECTRICAL CHARACTERISTICS (Tamb=25℃ Parameter Collector-base breakdown voltage Collector-emitter breakdown voltage Emitter-base breakdown voltage Collector cut-off current Emitter cut-off current DC current gain Collector-emitter saturation voltage Base-emitter voltage Transition frequency Collector output capacitance Symbol V(BR)CBO V(BR)CEO V(BR)EBO ICBO IEBO hFE(1) VCE(sat [ ... ]
2SA1611 PDF Datasheet Download
