This part is a kind of semiconductor called 2SA1492.

Function of this product has Silicon PNP Epitaxial Planar Transistor(Audio and General Purpose).

Manufacturers : Sanken electric

Image and pinout :

Some of the text within the PDF file :

2SA1492 Silicon PNP Epitaxial Planar Transistor (Complement to type 2SC3856) sAbsolute maximum ratings Symbol VCBO VCEO VEBO IC IB PC Tj Tstg 2SA1492 –180 –180 –6 –15 –4 130(Tc=25°C) 150 –55 to +150 (Ta=25°C) Unit V V V A A W °C °C Application : Audio and General Purpose (Ta=25°C) 2SA1492 –100max –100max –180min 50min∗ –2.0max 20typ 500typ V pF 20.0min 4.0max sElectrical Characteristics Symbol ICBO IEBO V(BR)CEO hFE VCE(sat) fT COB Conditions VCB=–180V VEB=–6V IC=–50mA VCE=–4V, IC=–3A IC=–5A, IB=–0.5A VCE=–12V, IE=0.5A VCB=–10V, f=1MHz External Dimensions MT-100(TO3P) 5.0±0.2 15.6±0.4 9.6 2.0 1.8 4.8±0.2 2.0±0.1 Unit µA µA V 19.9±0.3 4.0 a b ø3.2±0.1 MHz 2 3 1.05 +0.2 -0.1 0.65 +0.2 -0.1 1.4 ∗hFE Rank O(50 to 100), P(70 to [ ... ]

2SA1492 PDF Datasheet Download