What Is the Function of Transistors?

By Staff WriterLast Updated Mar 25, 2020 2:30:11 AM ET
Joe Haupt/CC-BY-SA 2.0

Transistors function as current amplifiers or binary switches. With amplification, a small current controls a gate for a greater current. As switches, a 5-volt threshold (gate open) equals binary digit one, less than 5 volts (gate closed) equals binary zero.