A transistor is basically an electrically controlled switch. There is an input, output, and a control line referred to as the emitter, collector, and base. When the. BC NPN Transistor, Buy it Online in Hyderabad and with shipping across all major Indian Cities and States. Technologies. NPN General Purpose Amplifier. BC BCA. BCB. BCC. This device is designed for use as general purpose amplifiers and switches.

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BC is used in common emitter configuration for amplifiers. You may refer to the article Watt transistor amplifier to see an example of the role of complementary transistor pairs in making a particular circuit more efficient. The voltage divider is the commonly used biasing mode.

Transistor BC547

Complete Technical Details can be found at the datasheet give at the end of this page. The configuration remains exactly same as discussed above.

They may be also classified by their frequency handling capabilities and their amplification determining factor c5447 hFE.

Detecting the start of rain can be made by using this circuit comprising just two BC devices and some other passive parts. The input signal at base is amplified and taken at the emitter. This is known as the biasing. The transistor terminals require a fixed DC voltage to operate in the desired region of its characteristic curves.

How to Make Simple Electronic Circuits Using Transistor BC

The LED will provide you with immediate visual information regarding the transistog with the circuit. However, here the switching transitions are quick with minimum hysteresis making the unit more accurate than a single transistor version. Choosing Motor For Robots. I have already discussed a huge number of BC simple circuit configurations.


BC has a gain value of c5477this value determines the amplification capacity of the transistor. BC is an NPN bi-polar junction transistor. Virgin Galactic — Commercial Space Flight. As mentioned the biasing current should maximum of 5mA. Anything more than 5mA will kill the Transistor; hence a resistor is always added in series with base pin.

BC Datasheet, Equivalent, Cross Reference Search. Transistor Catalog

As discussed a transistor will act as an Open switch during Forward Bias and tdansistor a Closed switch during Transisfor Bias, this biasing can be achieved by supplying the required amount of current to the base pin. Even the most sophisticated chips to date have millions of transistors embedded within them and configured into complex circuits, assigned with many discrete and specific operations through different stages.

If you are designing a PCD or Perf board with this component then the following picture from the Datasheet will be useful to know its package type and dimensions. The diagram shows the basic appearance of the transistor, which might differ slightly depending upon the particular make, however the technical specs and the pin-out assignments remain identical.

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. All transistors basically function in the same manner. When this transistor is fully biased then it can allow a maximum of mA to flow across the collector and emitter.


As shown in the figure below, consider you have a single BC transistor. 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.

Simple Mains Voltage Stabilizer Circuit: To transitor a transistor we have to supply current to base pin, this current I B should be limited to 5mA.

BC547 Datasheet, Equivalent, Cross Reference Search

This happens because a small part of the voltage reaches the base of the transistor and switches ON its collector to ground and allows the voltage to complete, illuminating the LED. BCthe conditions simply reverses, i. It can amplify power, voltage and current at transisfor configurations. What is Web Browser.

With a PNP transistor e. You may like to refer to them through this article and understand how the above properties are simply exploited, and also you might want to develop your own ideas and learn using the above operating principles of the device.

They are broadly transisotr by their power ratings or power handling capacities. P max here is mW or half watt for the entire group. Interface GPS with Arduino. Two BC transistors when connected as shown in the article, provides a useful feature of controlling the amount of transisotr drawn by the load.