This part is a kind of semiconductor called D2560.

Function of this product has 2SD2560.

Manufacturers : Sanken electric

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Some of the text within the PDF file :

Equivalent circuit C Darlington 2SD2560 sElectrical Characteristics Symbol ICBO IEBO V(BR)CEO hFE VCE(sat) VBE(sat) fT COB Conditions VCB=150V VEB=5V IC=30mA VCE=4V, IC=10A IC=10A, IB=10mA IC=10A, IB=10mA VCE=12V, IE=–2A VCB=10V, f=1MHz 2SD2560 100max 100max 150min 5000min∗ 2.5max 3.0max 70typ 120typ V V MHz pF 20.0min 4.0max 2 3 1.05 +0.2 -0.1 5.45±0.1 B C E 5.45±0.1 B (70 Ω ) E Silicon NPN Triple Diffused Planar Transistor (Complement to type 2SB1647) sAbsolute maximum ratings (Ta=25°C) Symbol VCBO VCEO VEBO IC IB PC Tj Tstg 2SD2560 150 150 5 15 1 130(Tc=25°C) 150 –55to+150 Unit V V V A A W °C °C Application : Audio, Series Regulator and General Purpose (Ta=25°C) Unit 5.0±0.2 2.0 1.8 External Dimensions MT-100(TO3P) 15.6±0.4 9.6 4.8±0.2 2.0±0.1 µA µA 19.9± [ ... ]

D2560 PDF Datasheet Download