What Is Transistor And Uses?

What is transistor with example?

The definition of a transistor is an electronic device that works by controlling the flow of the electrical current.

An example of a transistor is something combined in large numbers with microcircuits into a single circuit board and used in a computer..

How do you identify a transistor?

Bipolar Junction Transistor (BJT) In plastic casing, one side of the transistor is Flat which is the front side and the pins are arranged serially. To identify the pins, keep the front flat side facing you and count the pins as one, two etc. In most NPN transistors it will be 1 (Collector), 2 (Base) and 3 ( Emitter ).

What are the advantages of a transistor?

Advantages of Transistor:Smaller mechanical sensitivity.Lower cost and smaller in size, especially in small-signal circuits.Low operating voltages for greater safety, lower costs, and tighter clearances.Extremely long life.No power consumption by a cathode heater.Fast switching.Dec 11, 2018

What are the two types of transistor?

Types of Transistor and its circuit symbols Earlier, we’ve mentioned that there are two types of transistors; BJTs and FETs.

What is the principle of transistor?

A transistor consists of two PN diodes connected back to back. It has three terminals namely emitter, base and collector. The basic idea behind a transistor is that it lets you control the flow of current through one channel by varying the intensity of a much smaller current that’s flowing through a second channel.

What is the symbol of PNP transistor?

PNP vs NPN TransistorPNP TransistorNPN TransistorSymbolCollector-emitter voltageNegativePositiveEmitter arrowPointed inPointed out6 more rows•Mar 25, 2020

What is transistor and types?

Transistors are basically classified into two types; they are Bipolar Junction Transistors (BJT) and Field Effect Transistors (FET). The BJTs are again classified into NPN and PNP transistors. … Junction FET transistors are classified into N-channel JFET and P-channel JFET depending on their function.

What are the characteristics of transistor?

Common Base (CB) Configuration of TransistorTransistor CharacteristicsDefinitionCurrent Transfer CharacteristicsThe variation of collector current(IC) with the emitter current(IE), keeping Collector Base voltage(VCB) constant. The resulting current gain has a value less than 1.2 more rows

What is power transistor?

The transistor which is used for controlling large voltage and current is a power BJT (bipolar transistor) is a power transistor. It is also known as a voltage-current control device that operates in 4 regions cut-off, active, quasi saturation, and hard saturation based on the supplies given to the transistor.

What is the symbol of transistor?

Transistor Symbols The symbol of NPN and PNP is shown in the figure below. The arrow in the symbol indicates the direction of flow of conventional current in the emitter with forward biasing applied to the emitter-base junction. The only difference between the NPN and PNP transistor is in the direction of the current.

Why it is called transistor?

The word transistor is a combination of transfer and resistance. This is because it transfers the resistance from one end of the device to the other end or we can say, transfer of resistance. Hence, the name transistor. Transistors have very high input resistance and very low output resistance.

What is the application of transistor?

Transistors are used in our day to day lives in many forms which we are aware of as amplifiers and switching apparatus. As amplifiers, they are being used in various oscillators, modulators, detectors and nearly in any circuit in order to perform a function. In a digital circuit, transistors are used as switches.

What is transistor with diagram?

Diagram ‘A’ shows an NPN transistor which is often used as a type of switch. A small current or voltage at the base allows a larger voltage to flow through the other two leads (from the collector to the emitter). The circuit shown in diagram B is based on an NPN transistor.

What devices use transistors?

Transistors are also found in pacemakers, hearing aids, cameras, calculators, and watches. Most of these devices draw their power from tiny batteries. Most spacecraft also rely on microchips, and thus transistors.

What is transistor in simple words?

A transistor is a type of a semiconductor device that can be used to both conduct and insulate electric current or voltage. A transistor basically acts as a switch and an amplifier. In simple words, we can say that a transistor is a miniature device that is used to control or regulate the flow of electronic signals.