This part is a kind of semiconductor called 2SC5511.

Function of this product has For Audio Amplifier output.

Manufacturers : Rohm

Image and pinout :

Some of the text within the PDF file :

2SC5511 Transistors For Audio Amplifier output - TV Velosity Modulation (160V, 1.5A) 2SC5511 zExternal dimensions (Unit : mm) TO-220FN 10.0 zStructure NPN Silicon Epitaxial Planar Transistor 4.5 φ3.2 2.8 zFeatures 1) Electrical characteristics of DC current gain hFE is flat. 2) High breakdown voltage. (BVCEO=160V(Min.), at IC=1mA) 3) High fT. (Typ. 150MHz, at VCE=10V, IE= −0.2A, f=100MHz) 4) Wide SOA. (1)Base (2)Collector (3)Emitter 15.0 12.0 8.0 5.0 1.2 1.3 14.0 0.8 2.54 (1) (2) (3) 2.54 0.75 2.6 zApplications Power amplifier Velosity modulation zAbsolute maximum ratings (Ta=25°C) Parameter Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current DC Pulse Symbol VCBO VCEO VEBO IC ICP PC Tj Tstg Limits 160 160 5 1.5 3 2 [ ... ]

2SC5511 PDF Datasheet Download