BC557A DATASHEET PDF

BCA. TO 3L. Ammo. BCBTA. BCB. TO 3L. Ammo .. Unless otherwise specified in this data sheet, this product is a standard. BCA Transistor Datasheet pdf, BCA Equivalent. Parameters and Characteristics. BC BCB. IC = mA, VCE = 5V. BCB. Typical 75 – . Disclaimer This data sheet and its contents (the “Information”) belong to the Premier.

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Controls the biasing of transistor.

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. Complete Technical Details can be found at the BC datasheet given at the end of this page. 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.

Of the above darasheet common emitter type is the popular and mostly used configuration. A Transistors acts as an Amplifier when operating in Active Region.

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BC Transistor Pinout, Description, Equivalent & Datasheet

Some of the configurations used in amplifier circuits are Common emitter amplifier Common collector amplifier Common base amplifier Of the above types common emitter datashset is the popular and mostly used configuration.

It can amplify power, voltage and current at different configurations.

Current flows in through collector. 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.

The value of this resistor R B can be calculated using below formulae.

Submitted by admin on 26 October BC has a gain value of tothis value determines the amplification capacity of the transistor. When a transistor is used as a switch it is operated in the Saturation and Cut-Off Region as explained above.

When uses as an Amplifier the DC current gain of the Transistor can be calculated by using the below formulae. 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.

Current Drains out through emitter. The value of I B should not exceed mA.

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Anything more than 5mA will kill the Transistor; hence a resistor is always added in series bc557aa base pin. When this transistor is fully biased then it can allow a maximum of mA to flow across the collector and emitter. As mentioned the biasing current should maximum of 5mA.

TL — Programmable Reference Voltage. 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.

BCA Datasheet, Equivalent, Cross Reference Search. Transistor Catalog

When 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. To bias a datashheet we have to supply current to base pin, this current I B should be limited to 5mA. Amplifier modules like Audio amplifiers, signal Amplifier etc.