This part is a kind of semiconductor called A1145.
Function of this product has Transistor.
Manufacturers : Toshiba
Image and pinout :

Some of the text within the PDF file :
TOSHIBA Transistor Silicon PNP Epitaxial Type (PCT Process) 2SA1145 Audio Frequency Amplifier Applications • Complementary to 2SC2705. • Small Collector Output Capacitance: Cob = 2.5 pF (typ.) • High Transition Frequency: fT = 200 MHz (typ.) 2SA1145 Unit: mm Absolute Maximum Ratings (Ta = 25°C) Characteristics Symbol Rating Unit Collector-base voltage VCBO −150 V Collector-emitter voltage VCEO −150 V Emitter-base voltage VEBO −5 V Collector current IC −50 mA Base current IB −5 mA Collector power dissipation PC 800 mW Junction temperature Storage temperature range Tj 150 °C Tstg −55 to 150 °C JEDEC JEITA TO-92MOD ― Note: Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant chan [ ... ]
A1145 PDF Datasheet Download
