This part is a kind of semiconductor called C4370.

Function of this product has 2SC4370.

Manufacturers : SavantIC

Image and pinout :

Some of the text within the PDF file :

SavantIC Semiconductor Product Specification Silicon NPN Power Transistors 2SC4370 DESCRIPTION ·With TO-220F package ·Complement to type 2SA1659 ·High transition frequency APPLICATIONS ·High voltage applications PINNING PIN 1 2 3 Base Collector Emitter Fig.1 simplified outline (TO-220F) and symbol 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 dissipation Junction temperature Storage temperature TC=25 CONDITIONS Open emitter Open base Open collector VALUE 160 160 5 1.5 0.15 20 150 -55~150 UNIT V V V A A W Free Datasheet http:// SavantIC Semiconductor Product Spe [ ... ]

C4370 PDF Datasheet Download