Difference Between Diode and Rectifier

Diode is a nonlinear circuit element. Diode is an electronic component that allows the current to flow in only one direction. It is a two terminal semiconductor device. Rectifier is a device that is used to convert an AC voltage to a DC voltage. A diode is used as a switch and a rectifier is used for the conversion of an AC voltage to a DC voltage.

Differences between a Diode and a Rectifier

Let us look at more differences between them to understand better.



A diode conducts current when it is forward biased and blocks the flow of current when reverse biased.

A rectifier circuit consists of a diode, a step down transformer and a filter circuit which collectively converts AC to DC.

The current carrying capability is low in a diode.

The current carrying capability is high in a rectifier.

Diodes are used in switches, clampers, clippers, etc.

Rectifiers are used in computers, batteries,etc.

Zener diode, photo diode, etc. are the different types of diodes.

Single phase rectifiers and three phase rectifiers are the two types of rectifiers. Single phase rectifiers are further divided into half wave and full wave rectifiers.

The difference between between a diode and a rectifier should be understood clearly as it is an important and fundamental concept in electronics. To Know more about zener diode, photodiodes,etc. Visit BYJU’S.

Practise This Question

A disk and a sphere of same radius but different masses roll off on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first?