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Brief Description on BC Transistor BC is a NPN transistor hence the collector and emitter will be left open Reverse biased when the base pin is held at ground and will be closed Forward biased when a signal is provided to base pin. It is a low current transistor hence the maximum amount of current that could flow through the Collector pin Ic is mA, hence we cannot connect loads that consume more than mA and load voltage more than 30V using this transistor. BC has a decent gain value hfe from to ; this value determines the amplification capacity of the transistor.
When this transistor is fully biased then it can allow a maximum of mA to flow across the collector and emitter. This stage is called Saturation Region. When base current is removed the transistor becomes fully off, this stage is called as the Cut-off Region. Where to use BC Transistor? The BC has very low Continuous current of mA hence it cannot be used to switch heavy loads. So it can be used in places where the load current is less than mA.
Apart from that the transistor can be used as an amplifier since it has a gain value rom to and a transition frequency of 10MHz.
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