This part is a kind of semiconductor called C3153.

Function of this product has 2SC3153.

Manufacturers : Sanyo

Image and pinout :

C3153 image and datasheet pinout

Some of the text within the PDF file :

Ordering number:EN1072D NPN Triple Diffused Planar Silicon Transistor 2SC3153 800V/6A Switching Regulator Applications Features · High breakdown voltage (VCBO≥900V). · Fast switching speed. · Wide ASO. Package Dimensions unit:mm 2022A [2SC3153] Specifications Absolute Maximum Ratings at Ta = 25˚C Parameter Collector-to-Base Voltage Collector-to-Emitter Voltage Emitter-to-Base Voltage Collector Current Collector Current (Pulse) Base Current Collector Dissipation Junction Temperature Storage Temperature Symbol VCBO VCEO VEBO IC ICP IB PC Tj Tstg Tc=25˚C Pulse, PW≤300µs, Duty Cycle≤10% 1 : Base 2 : Collector 3 : Emitter SANYO : TO-3PB Conditions Ratings 900 800 7 6 20 3 100 150 –55 to +150 Unit V V V A A A W ˚C ˚C Electrical Characteristics at Ta = [ ... ]

C3153 PDF Datasheet Download

2017/10/10 02:28 2017/10/10 02:28