# How do you calculate the maximum power of a Zener diode?

## How do you calculate the maximum power of a Zener diode?

Power= voltage x current. If a a zener diode has a zener voltage, VZ of 5.1W, you can use the power rating to find out how much current can flow through the diode by the formula, IZM= PZM/VZ (PZM is the diode’s maximum power dissipation, and VZ is the Zener voltage.).

## What is a Zener diode power rating?

The power rating of a Zener diode indicates the maximum power that the diode can safely dissipate. In the formula below, power equals the voltage multiplied by the current. IZM is the maximum current that can flow through the diode, and PZM is the diode’s maximum power dissipation, and VZ is the Zener voltage.

What is maximum power rating of a Zener diode?

The maximum power which Zener diode can dissipate without any damage is known as its Power Rating. Commercially available Zener diodes have power ratings from ¼ W to more than 50 W.

### What is the maximum power dissipation of the Zener diode?

So the maximum power dissipation that can be allowed in a Zener is the Zener voltage multiplied by the current flowing through it. For example, if a 12V Zener passes 12 V DC and 100 mA current, its power dissipation will be 1.2 Watts. So a Zener diode rated 1.3W should be used.

### How much power can a diode handle?

Some diodes — such as the 1N4001 — will break down at 50 volts or less. The 1N4007, however, can sustain a peak repetitive reverse voltage of 1000 volts.

What is the power dissipated by Zener diode?

## How do you calculate the power dissipated in a diode?

Maximum total dissipation = PD, the amount of power (in watts) allowable for the diode to dissipate, given the dissipation (P=IE) of diode current multiplied by diode voltage drop, and also the dissipation (P=I2R) of diode current squared multiplied by bulk resistance.

## What is the maximum rated Zener current?

Zener diode specifications Voltage Vz: The Zener voltage refers to the reverse breakdown voltage—2.4 V to about 200 V; can go up to 1 kV while the maximum for the surface-mounted device (SMD) is about 47 V). Current Iz (max.): Maximum current at the rated Zener voltage Vz—200 uA to 200 A).

What is power dissipation formula?

P (power) = I (current) × V (voltage) Therefore, to calculate the power dissipated by the resistor, the formulas are as follows: P (power dissipated) = I2 (current) × R (resistance) or. P (power dissipated) = V2 (voltage) ÷ R (resistance)