kids encyclopedia robot

Bipolar junction transistor facts for kids

Kids Encyclopedia Facts
Using Transistor

A bipolar junction transistor (BJT or bipolar transistor) is a type of transistor that relies on the contact of two types of semiconductor in order for it to work. BJTs can be used as amplifiers, switches, or in oscillators. BJTs can be found either on their own, or in large numbers as parts of integrated circuits.

They are named bipolar transistors because their operation involves both electrons and holes.

The current gained is measured in hfe, Forward Current Gain. Typical amount can be between 200-350.

Images for kids

kids search engine
Bipolar junction transistor Facts for Kids. Kiddle Encyclopedia.