This part is a kind of semiconductor called D1296.

Function of this product has 2SD1296.

Manufacturers : NEC

Image and pinout :

Some of the text within the PDF file :

Product Specification www.jmnic.com Silicon NPN Power Transistors 2SD1296 DESCRIPTION ¡¤ With TO-3PN package ¡¤ High DC current gain ¡¤ Low saturation voltage APPLICATIONS ¡¤ For audio frequency power amplifier and low speed high current switching industrial use PINNING PIN 1 2 3 Base Collector;connected to mounting base Emitter Fig.1 simplified outline (TO-3PN) and symbol DESCRIPTION Absolute maximum ratings (Ta=25¡æ ) SYMBOL VCBO VCEO VEBO IC ICM PARAMETER Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Collector current-peak CONDITIONS Open emitter Open base Open collector MAX 150 100 8 15 30 TC=25¡æ 100 W Ta=25¡æ 3.0 150 -55~150 ¡æ ¡æ UNIT V V V A A PT Total po [ ... ]

D1296 PDF Datasheet Download