This part is a kind of semiconductor called 2SA950.

Function of this product has PNP Plastic Encapsulated Transistor.

Manufacturers : SeCoS

Image and pinout :

Some of the text within the PDF file :

Elektronische Bauelemente 2SA950 -0.8A , -35V PNP Plastic Encapsulated Transistor RoHS Compliant Product A suffix of “-C” specifies halogen & lead-free FEATURES  1W output applications  Complementary to 2SC2120 CLASSIFICATION OF hFE (1) Product-Rank 2SA950-O 2SA950-Y Range 100-200 160-320 GH J AD B K E CF TO-92 Emitter Collector Base REF. A B C D E F G H J K Millimeter Min. Max. 4.40 4.70 4.30 4.70 12.70 - 3.30 3.81 0.36 0.56 0.36 0.51 1.27 TYP. 1.10 - 2.42 2.66 0.36 0.76  Base Collector   Emitter ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise specified) Parameter Symbol Rating Collector to Base Voltage Collector to Emitter Voltage Emitter to Base Voltage Collector Current - Continuous Collector Power Dissipation J [ ... ]

2SA950 PDF Datasheet Download