This part is a kind of semiconductor called 2SA1859A.

Function of this product has Silicon PNP Epitaxial Planar Transistor(Audio Output Driver and TV Velocity-modulation).

Manufacturers : Sanken electric

Image and pinout :

Some of the text within the PDF file :

2SA1859/1859A Silicon PNP Epitaxial Planar Transistor (Complement to type 2SC4883/A) sAbsolute maximum ratings (Ta=25°C) Symbol 2SA1859 2SA1859A VCBO VCEO VEBO IC IB PC Tj Tstg –150 –150 –6 –2 –1 20(Tc=25°C) 150 –55 to +150 –180 –180 Unit V V V A A W °C °C Application : Audio Output Driver and TV Velocity-modulation (Ta=25°C) sElectrical Characteristics Symbol ICBO VCB= IEBO V(BR)CEO hFE VCE(sat) fT COB VEB=–6V IC=–10mA VCE=–10V, IC=–0.7A IC=–0.7A, IB=–70mA VCE=–12V, IE=0.7A VCB=–10V, f=1MHz Conditions External Dimensions FM20(TO220F) 4.0±0.2 10.1±0.2 4.2±0.2 2.8 c0.5 2SA1859 2SA1859A –10max –150 –10max –180min –150min 60 to 240 –1.0max 60typ 30typ –180 Unit µA µA V V MHz pF 13.0min 16.9±0.3 8.4±0.2 V 1.35±0.15 1.35±0.15 0 [ ... ]

2SA1859A PDF Datasheet Download