This part is a kind of semiconductor called C4148.

Function of this product has 2SC4148.

Manufacturers : Inchange Semiconductor

Image and pinout :

Some of the text within the PDF file :

Inchange Semiconductor Product Specification Silicon NPN Power Transistors 2SC4148 DESCRIPTION ¡¤With ITO-220 package ¡¤Switching power transistor ¡¤Low saturation voltage PINNING PIN 1 2 3 Base Collector Emitter Fig.1 simplified outline (ITO-220) and symbol DESCRIPTION Absolute maximum ratings(Ta=25¡æ ) SYMBOL VCBO VCEO VEBO IC ICM IB IBM PT Tj Tstg PARAMETER Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Collector current-Peak Base current Base current-Peak Total power dissipation Junction temperature Storage temperature TC=25¡æ CONDITIONS Open emitter Open base Open collector VALUE 60 40 7 7 14 1.5 2 25 150 -55~150 ¡æ ¡æ UNIT V V V A A A A W THERMAL CHARACTERISTICS SYMBOL Rth j-C PARAMETER Thermal resistance junction case MAX [ ... ]

C4148 PDF Datasheet Download