This part is a kind of semiconductor called A2140.

Function of this product has 2SA2140.

Manufacturers : Panasonic Semiconductor

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Some of the text within the PDF file :

Power Transistors 2SA2140 Silicon PNP epitaxial planar type For power amplification For TV VM circuit ■ Features • Satisfactory linearity of forward current transfer ratio hFE • High transition frequency (fT) • Full-pack package which can be installed to the heat sink with one screw. ■ Absolute Maximum Ratings TC = 25°C Parameter Symbol Rating Unit Collector-base voltage (Emitter open) Collector-emitter voltage (Base open) Emitter-base voltage (Collector open) Collector current Peak collector current Collector power dissipation Junction temperature Ta = 25°C Storage temperature VCBO VCEO VEBO IC ICP PC Tj Tstg −180 V −180 V −6 V −1.5 A −3 A 20 W 2.0 150 °C −55 to +150 °C 9.9±0.3 Unit: mm 4.6±0.2 [ ... ]

A2140 PDF Datasheet Download