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Zener Current Formula

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Zener Current is defined as the current passing through a zener diode when it is in operating mode. Check FAQs

I z = \frac{V i - V z}{R z}

I_z - Zener Current?V_i - Input Voltage?V_z - Zener Voltage?R_z - Zener Resistance?

Zener Current Example

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Here is how the Zener Current equation looks like with Values.

Here is how the Zener Current equation looks like with Units.

Here is how the Zener Current equation looks like.

150.1344 = \frac{21.21 - 10.6}{70.67}

150.1344mA = \frac{21.21V - 10.6V}{70.67Ω}

150.1344 = \frac{21.21 - 10.6}{70.67}

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Zener Current Solution

Follow our step by step solution on how to calculate Zener Current?

FIRST Step Consider the formula

I z = \frac{V i - V z}{R z}

Next Step Substitute values of Variables

∴

I z = \frac{21.21V - 10.6V}{70.67Ω}

Next Step Prepare to Evaluate

∴

I z = \frac{21.21 - 10.6}{70.67}

Next Step Evaluate

∴

I z = 0.150134427621339A

Next Step Convert to Output's Unit

∴

I z = 150.134427621339mA

LAST Step Rounding Answer

∴

I z = 150.1344mA

Zener Current Formula Elements

Variables

Zener Current

Zener Current is defined as the current passing through a zener diode when it is in operating mode.

Symbol: I_z

Measurement: Electric CurrentUnit: mA

Note: Value should be greater than 0.

Formulas to find Zener Current

Input Voltage

Input Voltage is defined as the voltage required at the input terminal of an electronic device to ensure the flow of current through it.

Symbol: V_i

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Input Voltage

Zener Voltage

Zener Voltage is the threshold voltage at which a zener diode conducts current in reverse direction. It is determined by doping concentration of the diode.

Symbol: V_z

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Zener Voltage

Zener Resistance

Zener Resistance is calculated when zener diode is operating in the breakdown region, i.e., the region where it is conducting current in reverse direction.

Symbol: R_z

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Zener Resistance

Other formulas in Diode Characteristics category

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R = \frac{I p}{P o}

Go Zener Voltage

V z = R z \cdot I z

Go Saturation Drain Current

I s = 0.5 \cdot g m \cdot (V gs - V th)

How to Evaluate Zener Current?

Zener Current evaluator uses Zener Current = (Input Voltage-Zener Voltage)/Zener Resistance to evaluate the Zener Current, Zener current consists of a current limiting resistor connected in series with the input voltage with the Zener diode connected in parallel with the load resistor in this reverse biased condition. The stabilized output voltage is always selected to be the same as the breakdown voltage of the diode. Zener Current is denoted by I_z symbol.

How to evaluate Zener Current using this online evaluator? To use this online evaluator for Zener Current, enter Input Voltage (V_i), Zener Voltage (V_z) & Zener Resistance (R_z) and hit the calculate button.

FAQs on Zener Current

What is the formula to find Zener Current?

The formula of Zener Current is expressed as Zener Current = (Input Voltage-Zener Voltage)/Zener Resistance. Here is an example- 150134.4 = (21.21-10.6)/70.67.

How to calculate Zener Current?

With Input Voltage (V_i), Zener Voltage (V_z) & Zener Resistance (R_z) we can find Zener Current using the formula - Zener Current = (Input Voltage-Zener Voltage)/Zener Resistance.

Can the Zener Current be negative?

No, the Zener Current, measured in Electric Current cannot be negative.

Which unit is used to measure Zener Current?

Zener Current is usually measured using the Milliampere[mA] for Electric Current. Ampere[mA], Microampere[mA], Centiampere[mA] are the few other units in which Zener Current can be measured.

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Zener Current Formula

Zener Current Example

Zener Current Solution

Zener Current Formula Elements

Other formulas in Diode Characteristics category

How to Evaluate Zener Current?

FAQs on Zener Current

Variable Name