Knowing the gain of your semiconductor component allows you greater control since you can calculate precisely what voltage is delivered.

Allows circuit control - You need to know how much power will flow through your circuit in order for your electronics to function properly.

Acts as an amplifier - The gain is a rating of how much the transistor will amplify, or increase the voltage, as power passes through it.

Its default state is ON when there is no voltage flowing through the device. The power flows along the circuit from emitter to collector.

PNP - This is another type of bipolar transistor that functions in reverse of NPN.

It allows for quick flow along the circuit from the voltage collector to emitter.

NPN - The most common type of transistor is bipolar, and NPN is one sub-type.

Amplifier - The semiconductor nature of silicon as a raw material can be transformed to create an amplifier which encourages voltage flow along the circuit in a device.

Those conditions are determined by how the semiconductor material, silicon, is doped and layered. It allows the flow of electrons only under certain conditions. Switch - At its most basic, a transistor is a switch.Wherever there's a need to control the flow of electricity in a device - from transistor radios, to diodes, to circuit boards - there's a transistor. Universally useful and adaptable, the transistor is an essential component of electronic circuitry.

Whether you're building, repairing, or maintaining electronics, you'll end up needing transistors.

2n3055 transistor array