This is one of the semiconductor types. This part name is B688.
This product has 2SB688 functions.
Manufacturers of product is Savantic.
Image and pinout :
B688 PDF Datasheet
Some of the text files within the PDF file
SavantIC Semiconductor Silicon PNP Power Transistors Product Specification 2SB688 DESCRIPTION ·With TO-3P(I) package ·Complement to type 2SD718 APPLICATIONS ·Power amplifier applications ·Recommend for 45~50W audio frequency amplifier output stage PINNING PIN 1 2 3 DESCRIPTION Emitter Collector;connected to mounting base Base Fig.1 simplified outline (TO-3P(I)) and symbol Absolute maximum ratings(Ta=25 ) SYMBOL PARAMETER VCBO Collector-base voltage VCEO Collector-emitter voltage VEBO IC Emitter-base voltage Collector current IB Base current PT Total power dissipation Tj Junction temperature Tstg Storage temperature CONDITIONS Open emitter Open base Open collector TC=25 VALUE -120 -120 -5 -8 -0.8 80 150 -55~150 UNIT V V V A A W SavantIC Semiconductor Silicon PNP Power Transistors Product Specification 2SB688 CHARACTERISTICS Tj=25 unless otherwise specified SYMBOL PARAMETER CONDITIONS V(BR)CEO Collector-emitter breakdown voltage IC=-50mA ,IB=0 VCEsat Col [ … ]
Please refer to the file for details.