This part is a kind of semiconductor called C5611.

Function of this product has 2SC5611.

Manufacturers : Sanyo Semicon Device

Image and pinout :

Some of the text within the PDF file :

w w w Ordering . D a t number:ENN6336 a S h e e t 4 U . c o m PNP/NPN Epitaxial Planar Silicon Transistors 2SA2023/2SC5611 60V / 5A High-Speed Switching Applications Applications · Various inductance lamp drivers for electrical equipment. · Inverters, converters (strobes, flash, fluorescent lamp lighting circuit). · Power amplifier (high-power car stereo, motor control). · High-speed switching (switching regulater, driver circuit). Package Dimensions unit:mm 2165 [2SA2023/2SC5611] 8.0 1.0 4.0 1.0 1.4 3.3 3.0 Features · Low collector-to-emitter saturation voltage. · Excellent dependence of hFE on current. · High-speed switching. · Micaless package facilitating mounting. 1.6 0.8 1.5 3.0 0.8 0.75 7.5 15.5 11.0 0.7 1 2 3 Specifications Note * ( ) : 2SA2023 Absolute Ma [ ... ]

C5611 PDF Datasheet Download