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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The value of this resistor R B can be calculated using below formulae. Submitted by admin on 26 October The value of I B should not exceed mA.

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. Of the above types common emitter type is the popular and mostly used tdansistor. It can amplify power, voltage and current at different configurations.

As mentioned the biasing current should maximum of 5mA. 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 its package type and dimensions.


Current flows in through collector. Controls the biasing of transistor. To bias a transistor we have to supply current to base pin, this current I B should be limited to 5mA.

When uses as an Amplifier the DC current gain of the Transistor can be calculated by using the below formulae. Some of the configurations used in amplifier circuits are Common emitter transixtor Common collector amplifier Common base amplifier Of the above types common emitter type is the popular and mostly used configuration.

Complete Technical Details can be found at the BC datasheet given at the end of this page. The maximum amount of current that could flow through the Collector pin is mA, hence we cannot connect loads that consume more than mA using this transistor. Amplifier modules like Audio amplifiers, signal Amplifier etc. Anything more than 5mA will kill the Transistor; hence a c575b is always added in series with base pin.

c557b transistor

TL — Programmable Reference Voltage. Current Drains out through emitter. 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.


When this transistor is fully biased then it can allow a maximum of mA to flow across the collector and emitter.

Cb Transistor, Cb Transistor Suppliers and Manufacturers at

When a transistor is used as a c5557b it is operated in the Saturation and Cut-Off Region as explained above. 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.

BC has a gain value of tothis value determines the amplification capacity of the transistor.

When base current is removed the transistor becomes fully off, this stage is called as the Cut-off Hransistor and the Base Emitter voltage could be around mV. A Transistors acts as an Amplifier when operating in Active Region.