What is BC109B?


This is Low noise general purpose audio amplifiers.

An audio power amplifier is an electronic device that amplifies low-power audio signals to a higher power level, suitable for driving speakers or other types of loads. The amplifier takes an input signal, typically from a preamplifier or a mixer, and increases its power to drive the loudspeakers, without distorting the sound. The choice of amplifier class depends on the application and the requirements of the system.


[PDF] Complete Technical Details can be found in the BC109B datasheet provided at this page.

Summary in PDF File


NPN BC107 BC108 BC109 LOW NOISE GENERAL PURPOSE AUDIO AMPLIFIERS The BC107 BC108 and BC109 are silicon planar epitaxial NPN transistors mounted in TO 18 metal package They are suitable for use in drive audio stages low noise input audio stages and as low power high gain general purpose transistors The complementary PNP are BC177 BC178 and BC179 Compliance to RoHS ABSOLUTE MAXIMUM RATINGS Symbol VCEO VCBO VEBO IC ICM PD TJ TStg Collector Emitter Voltage IB 0 Collector Base Voltage IE 0 Emitter Base Voltage IC 0 Collector Current Collector Peak Current Total Power Dissipation Tamb 25 Junction Temperature Storage Temperature range BC107 45 50 6 BC108 20 30 5 100 200 300 175 65 to 150 BC109 20 30 5 Unit V V V mA mA mW C C www DataSheet net ELECTRICAL CHARACTERISTICS Tj 25 C unless otherwise specified Symbol Ratings Test Condition s VCB 20 V IE 0 BC107 BC108 BC109 BC107 BC108 BC109 BC107 BC108 BC109 BC107 BC108 BC109 BC107 BC108 BC109 BC107 BC108 BC109 Min Typ Max 15 Unit nA ICBO Collector Cutoff Current VCB 20 V IE 0 V Tj 150 C VEB 5 V IC 0 IC 10 mA IB 0 IC 10 A VBE 0 15 A IEBO Emitter Cutoff Current Collector Emitter Breakdown Voltage Collector Base Breakdown Voltage

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Audio power amplifiers are used in a wide range of audio applications, including home stereo systems, professional sound reinforcement systems, musical instruments, and automotive sound systems. They play a crucial role in delivering high-quality, clean, and powerful sound to the listeners.

Manufacturers : Comset Semiconductors

COMSETS - BC109B Datasheet PDF

COMSETS BC109B AMPLIFIER

Low noise general purpose audio amplifiers

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