This part is a kind of semiconductor called B1105.

Function of this product has 2SB1105.

Manufacturers : SavantIC

Image and pinout :

Some of the text within the PDF file :

SavantIC Semiconductor Silicon PNP Power Transistors DESCRIPTION ·With TO-220C package ·DARLINGTON ·High DC durrent gain ·Complement to type 2SD1605 APPLICATIONS ·Designed for use in low frequency power amplifier applications PINNING PIN 1 2 3 DESCRIPTION Base Collector;connected to mounting base Emitter Product Specification 2SB1105 Absolute maximum ratings(Tc=25 ) SYMBOL PARAMETER CONDITIONS VCBO VCEO VEBO IC PC Tj Tstg Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current-DC Collector power dissipation Junction temperature Storage temperature Open emitter Open base Open collector TC=25 VALUE -120 -120 -7 -3 30 150 -55~150 UNIT V V V A W SavantIC Semiconductor Silicon PNP Power Transistors CHAR [ ... ]

B1105 PDF Datasheet Download