This part is a kind of semiconductor called 2SC6061.
Function of this product has Silicon NPN Epitaxial Type.
Manufacturers : Toshiba
Image and pinout :
Some of the text within the PDF file :
2SC6061 TOSHIBA Transistor Silicon NPN Epitaxial Type 2SC6061 High-Speed Switching Applications DC-DC Converter Applications ・High-DC current gain: hFE = 120 to 300 (IC = 0.1 A) 0.95 0.95 2.9±0.2 1.9±0.2 Unit: mm +0.2 2.8-0.3 +0.2 1.6-0.1 ・Low-collector-emitter saturation: VCE (sat) = 0.14 V (max) ・High-speed switching: tf = 0.2 μs (typ) 1 2 3 Characteristic Collector-base voltage Collector-emitter voltage Collector-emitter voltage Emitter-base voltage Collector current (Note 1) Base current Collector power dissipation (Note 2) Junction temperature Storage temperature range t = 10s DC DC Pulse Symbol VCBO VCEX VCEO VEBO IC ICP IB PC Tj Tstg Rating 180 150 120 7 1.0 2.0 0.1 1000 625 150 −55 to 150 Unit V V V V A A A mW mW °C °C 0.7±0.05 1. Base 2. Emitter 3. Collecto [ ... ]