This part is a kind of semiconductor called B794.

Function of this product has 2SB794.

Manufacturers : SavantIC

Image and pinout :

Some of the text within the PDF file :

SavantIC Semiconductor Silicon PNP Power Transistors DESCRIPTION ·With TO-126 package ·DARLINGTON ·High DC current gain ·Low collector saturation voltage ·Complement to type 2SD985 2SD986 APPLICATIONS ·For use in operating from IC without predriver ,such as hammer driver PINNING(See Fig.2) PIN DESCRIPTION 1 Emitter 2 Collector;connected to mounting base 3 Base Product Specification 2SB794 2SB795 Absolute maximum ratings(Ta=25 ) SYMBOL PARAMETER CONDITIONS VCBO Collector-base voltage 2SB794 2SB795 Open emitter VCEO Collector-emitter voltage 2SB794 2SB795 Open base VEBO Emitter-base voltage Open collector IC Collector current (DC) ICM Collector current-peak PD Total power dissipation Tj Junction temperature Tstg Storage temperature Ta=25 TC [ ... ]

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