This part is a kind of semiconductor called 2SC789.
Function of this product has SILICON POWER TRANSISTOR.
Manufacturers : SavantIC
Image and pinout :
Some of the text within the PDF file :
SavantIC Semiconductor Product Specification Silicon NPN Power Transistors 2SC789 DESCRIPTION ·With TO-220C package ·Low collector saturation voltage APPLICATIONS ·For medium power linear and switching applications PINNING PIN 1 2 3 Base Collector;connected to mounting base Emitter DESCRIPTION Absolute maximum ratings (Ta=25? ) SYMBOL VCBO VCEO VEBO IC IB PC Tj Tstg PARAMETER Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Base current Collector power dissipation Junction temperature Storage temperature TC=25? Open emitter Open base Open collector CONDITIONS VALUE 70 70 5 4 1 30 150 -55~150 UNIT V V V A A W ? ? SavantIC Semiconductor Product Specification Silicon NPN Power Transistors 2SC789 CHARAC [ ... ]