DataSheet: PDF icon BCPDF. BC is a general purpose PNP transistor. It is used in switching and amplifier applications. The DC current gain varies in. BC Transistor Datasheet pdf, BC Equivalent. Parameters and Characteristics. Semiconductor data sheets and/or specifications can and do vary in different applications . BC / BC / BC VCE = -5 V, IC = µA.

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Also note that a PNP transistor is always used for high side switching, meaning the collector is connected to power and emitter to load that is to be switched. When a transistor is used as a switch trannsistor is operated in the Saturation and Cut-Off Region as explained above.

The transistor terminals require a fixed DC voltage to operate in the desired region of its characteristic curves.

The value of this resistor RB can be calculated using below formulae. When uses as an Amplifier the DC current gain of the Transistor can be calculated by using the below formulae.

BC Pinout, Configuration, Circuit As Switch & Amplifier

Choosing Battery for Robots. 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. The BC because of this large gain value is normally used trannsistor as a audio amplifier. 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.


Submitted by admin on 26 March Choosing Motor For Robots. SPI Module of Arduino. For amplification applications, the transistor is biased such that it is partly on for all input conditions.

Virgin Galactic — Commercial Space Flight. BC has a gain value of to ; this value determines transistpr amplification capacity of the transistor. TL — Programmable Reference Voltage. In the below GIF you can notice the transistor being switched for a low voltage 1v audio signal. Arduino based GPS receiver. Interface SD Card with Arduino. BC as switch When a transistor is used as a switch it is operated in the Saturation and Cut-Off Region dayasheet explained above.

BC558 Datasheet, Equivalent, Cross Reference Search

This is known as the biasing. Skip to main content. What is Web Browser. The DC current gain varies in range to It is used in switching and amplifier applications. BC is used in common emitter configuration for amplifiers.

The input signal at base is amplified and taken at the emitter. This high-density System-in-Package SiP integrates controller, power switches, and support components. Where an input signal of low voltage is amplified switched to high voltages t0 fransistor loads like speakers.


For switching applications, transistor is biased so that it remains fully on if there is a signal at its base.

Transistor BC558

Amplifier modules like Audio amplifiers, signal Amplifier etc. When this transistor is fully biased then it can allow continues current of mA to flow across the collector and emitter. Of the above types common emitter type which amplifies voltage is the popular and mostly used configuration.

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. It is also used as a complement for transistors BC to BC It can amplify power, voltage and current at different configurations. A resistor is always added in series with base pin to limit the base current. Complete Technical Details can be found in the BC datasheet given at the end of this page.

Interface GPS with Arduino. In the absence of base signal, it gets completely off. The voltage divider is the commonly used biasing mode.

A Transistors acts as an Amplifier when operating in Active Region. BC is a general purpose PNP transistor.