# How Much Is VCE When A Transistor Is Saturated?

## What does it mean when a transistor is saturated?

Saturation is the on mode of a transistor.

A transistor in saturation mode acts like a short circuit between collector and emitter.

In saturation mode both of the “diodes” in the transistor are forward biased.

That means VBE must be greater than 0, and so must VBC..

## How do you determine when a transistor is saturated when a transistor is in cutoff?

Monitor the collector-emitter voltage of your circuit with a DMM. If the reading is below 0.3V, the transistor is at saturation. Transistors are having saturation voltage range from 0.7V and below but for a circuit designed for hard saturation, the VCE will be lower.

## Why VCE SAT is 0.2 V?

Because the charge carriers injected from the base effectively eliminate the depletion zone between the collector and emitter. The collector current doesn’t have to overcome the P-N junction potential because the base current has neutralized it.

## How do you know if a transistor is saturated?

How to know if a Transistor is Saturated – Through Actual Testing. You can conclude the operation of a transistor if it is saturated or not by doing actual measurement. Monitor the collector-emitter voltage of your circuit with a DMM. If the reading is below 0.3V, the transistor is at saturation.

## When an NPN transistor is saturated its VCE?

For example in an NPN transistor, the device is saturated when the collector to emitter voltage is less than the base-emitter voltage. Vce(sat) is specified with at a specific value of collector current, and a specific value of base current. Typically the base current is one tenth the collector current.

## What is the value of VCE during an ideal saturation condition?

A question about Vce of an NPN BJT in saturation region. I read that: during the saturation the Vce = (Vc-Ve) settles to around 0.2V and the further increase in base current will not make Vce zero.