C557B TRANSISTOR PDF

10 products offers 10 cb transistor products. About 60% of these are integrated circuits, 10% are transistors. A wide variety of cb transistor. 3. 1. Publication Order Number: BCB/D. BCB, BCA, B, C,. BCB. Amplifier Transistors. PNP Silicon. Features. • Pb−Free Packages are Available*. BC Transistor Datasheet pdf, BC Equivalent. Parameters and Characteristics.

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c557b transistor

The value of I B should not exceed mA. BC has a gain value of tothis value determines the amplification capacity of the transistor. The maximum amount of current that could flow through the Collector transiztor is mA, hence we cannot connect loads that consume more than mA using this transistor.

Some of the configurations used in amplifier circuits are Common emitter amplifier Transistot collector amplifier Common base amplifier Of the above types common emitter type is the popular and mostly used configuration. A Transistors acts as an Amplifier when operating c55b Active Region. Submitted by admin on 26 October BC is a PNP transistor hence the collector and emitter will be closed Forward biased when the base pin is held at ground and will be opened Reverse biased when a signal is provided to base pin.

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Transisto — Programmable Reference Voltage. When a transistor is used as a switch it is operated in the Saturation and Cut-Off Region as explained above. As discussed a transistor will act as an Open switch during Forward Bias and as a Closed switch during Reverse Bias, this biasing can be achieved by supplying the required amount of current to the base pin. Controls the biasing of transistor.

When uses as an Amplifier the DC current gain of the Transistor can be calculated by using the below formulae. When this transistor is fully biased then it can allow a maximum of mA to flow across the collector and emitter.

It can amplify power, voltage and current at different configurations. To bias a transistor we have to supply current to base pin, this current I B should be transidtor to 5mA. Complete Technical Details can be found at the BC datasheet given at the end of this page.

Amplifier modules like Audio amplifiers, signal Amplifier etc. Of the above types common emitter type is the popular and mostly used configuration.

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BC Transistor as switch When a transistor is used as a switch it is operated in the Saturation and Cut-Off Region as explained above. As mentioned fransistor biasing current should maximum of 5mA.

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Current flows in through collector. Current Drains out through emitter.

Trasistor base current is removed the transistor becomes fully off, this stage is called as the Cut-off Region and the Base Emitter voltage could be around mV. Anything more than 5mA will kill the Transistor; hence a resistor is always added in series with base pin.

The value of this resistor R B can be calculated using below formulae. If you are designing a PCD or Perf board with this component then the following picture from the BC Datasheet will be useful to know transitor package type and dimensions.