This part is a kind of semiconductor called D2525.

Function of this product has Silicon NPN Triple Diffused Type Transistor.

Manufacturers : Toshiba

Image and pinout :

Some of the text within the PDF file :

TOSHIBA Transistor Silicon NPN Triple Diffused Type 2SD2525 2SD2525 Audio Frequency Power Amplifier Applications Unit: mm • High DC current gain: 100 (min) • Low saturation voltage: VCE (sat) = 0.4 V (typ.) (IC = 2 A, IB = 0.2 A) • Complementary to 2SB1640 Absolute Maximum Ratings (Ta = 25°C) Characteristics Symbol Rating Unit Collector-base voltage VCBO 60 V Collector-emitter voltage VCEO 60 V Emitter-base voltage VEBO 7 V Collector current DC IC 3 A Pulse ICP 6 Base current IB 0.5 A Collector power dissipation Junction temperature Storage temperature range PC 1.8 W Tj 150 °C Tstg −55 to 150 °C JEDEC JEITA ― ― Note: Using continuously under heavy loads (e.g. the application of high TOSHIBA 2-10T1A temperature/current/voltage and the signifi [ ... ]

D2525 PDF Datasheet Download