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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As mentioned the biasing current should maximum of 5mA.

BC Transistor Pinout, Description, Equivalent & Datasheet

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

Anything more than 5mA will kill the Transistor; hence a resistor is always added in series with base pin. A Transistors acts as an Amplifier when operating in Active Region.

Current datasyeet in through collector.


It can amplify power, voltage and current at different configurations. Submitted by admin on 26 October Some of the configurations used in amplifier circuits are Common emitter amplifier Common collector amplifier Common base amplifier Of the above types common emitter type is the popular and mostly used configuration. The maximum amount of current that could flow through the Collector pin is mA, hence we cannot bx557a loads that consume more than mA using this transistor.

The value of this resistor R B can be calculated using below formulae. BC has a gain value of tothis value determines the amplification capacity of the transistor. Of the above types common emitter type is the popular and mostly used configuration.

When a transistor is used as a switch it is operated in the Saturation and Cut-Off Region as explained above. TL — Programmable Reference Voltage.

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

BC557A Datasheet, Equivalent, Cross Reference Search

Amplifier modules like Audio amplifiers, signal Amplifier etc. When uses as an Amplifier the DC current datasheey of the Transistor can be calculated by using the below formulae.


Controls the biasing of transistor. 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 datashedt signal is provided to base pin.

Current Drains out through emitter. The value of I B should not exceed mA. BC Transistor as switch When a transistor is used bc557aa a switch it is operated in the Saturation and Cut-Off Region as explained above. To bias datasheett transistor we have to supply current to base pin, this current I B should be limited to 5mA.

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.