This part is a kind of semiconductor called C1173.

Function of this product has 2SC1173.

Manufacturers : SavantIC

Image and pinout :

Some of the text within the PDF file :

SavantIC Semiconductor Swwiwli.DcaotanSheNet4PU.NcomPower Transistors DESCRIPTION ·With TO-220 package ·Complement to type 2SA473 ·Collector current :IC=3A ·Collector dissipation:PC=10W@TC=25? APPLICATIONS ·Low frequency power amplifier ·Power regulator PINNING PIN 1 2 3 DESCRIPTION Base Collector;connected to mounting base Emitter Product Specification 2SC1173 Absolute maximum ratings (Ta=25? ) SYMBOL PARAMETER VCBO Collector-base voltage VCEO VEBO Collector-emitter voltage Emitter-base voltage IC Collector current (DC) PC Collector power dissipation Tj Junction temperature Tstg Storage temperature CONDITIONS Open emitter Open base Open collector TC=25? VALUE 30 30 5 3 10 150 -55~150 UNIT V V V A W ? ? SavantIC Semiconductor Swwiwli.DcaotanSheNet4PU.NcomPower Tran [ ... ]

C1173 PDF Datasheet Download