This part is a kind of semiconductor called 2SA950.

Function of this product has TRANSISTOR (AUDIO POWER AMPLIFIER APPLICATIONS).

Manufacturers : Toshiba Semiconductor

Image and pinout :

Some of the text within the PDF file :

TOSHIBA Transistor Silicon PNP Epitaxial Type (PCT process) 2SA950 2SA950 Audio Power Amplifier Applications Unit: mm · High hFE: hFE = 100~320 · 1 W output applications · Complementary to 2SC2120 Maximum Ratings (Ta = 25°C) Characteristics Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Base current Collector power dissipation Junction temperature Storage temperature range Symbol VCBO VCEO VEBO IC IB PC Tj Tstg Rating -35 -30 -5 -800 -160 600 150 -55~150 Unit V V V mA mA mW °C °C Electrical Characteristics (Ta = 25°C) JEDEC TO-92 JEITA SC-43 TOSHIBA 2-5F1B Weight: 0.21 g (typ.) Characteristics Symbol Test Condition Collector cut-off current Emitter cut-off current Collector-emitter breakdown voltage DC current gain Collec [ ... ]

2SA950 PDF Datasheet Download