Emitter Current using Transistor Constant Calculator

✖Saturation Current is the diode leakage current density in the absence of light. It is an important parameter which differentiates one diode from another.ⓘ Saturation Current [I_sat]			+10% -10%
✖Common-base current gain α is related to β common-emitter current gain and its value is less than 1 because collector current is always less than emitter current due to recombination of electrons.ⓘ Common-Base Current Gain [α]			+10% -10%
✖Base-Emitter Voltage is the forward voltage between the base and emitter of the transistor.ⓘ Base-Emitter Voltage [V_BE]			+10% -10%
✖Thermal Voltage is the voltage produced within the p-n junction.ⓘ Thermal Voltage [V_t]			+10% -10%

✖Emitter Current is the amplified output current of a bipolar junction transistor.ⓘ Emitter Current using Transistor Constant [I_e]

⎘ Copy

👎

Formula

LaTeX

Reset

👍

Download BJT Formula PDF PDF Image

Emitter Current using Transistor Constant Solution

STEP 0: Pre-Calculation Summary

Formula Used

Emitter Current = (Saturation Current/Common-Base Current Gain)*e^(Base-Emitter Voltage/Thermal Voltage)
I_e = (I_sat/α)*e^(V_BE/V_t)
This formula uses 1 Constants, 5 Variables

Constants Used

e - Napier's constant Value Taken As 2.71828182845904523536028747135266249

Variables Used

Emitter Current - (Measured in Ampere) - Emitter Current is the amplified output current of a bipolar junction transistor.
Saturation Current - (Measured in Ampere) - Saturation Current is the diode leakage current density in the absence of light. It is an important parameter which differentiates one diode from another.
Common-Base Current Gain - Common-base current gain α is related to β common-emitter current gain and its value is less than 1 because collector current is always less than emitter current due to recombination of electrons.
Base-Emitter Voltage - (Measured in Volt) - Base-Emitter Voltage is the forward voltage between the base and emitter of the transistor.
Thermal Voltage - (Measured in Volt) - Thermal Voltage is the voltage produced within the p-n junction.

STEP 1: Convert Input(s) to Base Unit

Saturation Current: 1.675 Milliampere --> 0.001675 Ampere (Check conversion here)
Common-Base Current Gain: 0.985 --> No Conversion Required
Base-Emitter Voltage: 5.15 Volt --> 5.15 Volt No Conversion Required
Thermal Voltage: 4.7 Volt --> 4.7 Volt No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

I_e = (I_sat/α)*e^(V_BE/V_t) --> (0.001675/0.985)*e^(5.15/4.7)

Evaluating ... ...

I_e = 0.00508691463117838

STEP 3: Convert Result to Output's Unit

0.00508691463117838 Ampere -->5.08691463117838 Milliampere (Check conversion here)

FINAL ANSWER

5.08691463117838 ≈ 5.086915 Milliampere <-- Emitter Current

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Electronics » BJT » Analog Electronics » Current » Emitter Current » Emitter Current using Transistor Constant

Credits

Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

Payal Priya has created this Calculator and 600+ more calculators!

Verified by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

Urvi Rathod has verified this Calculator and 1900+ more calculators!

< Emitter Current Calculators

Emitter Current through Minority Carrier Concentration

LaTeX Go Emitter Current = Cross-section Area of Base-Emitter Junction*[Charge-e]*Electron Diffusivity*(-Thermal Equilibrium Concentration/Width of Base Junction)

Emitter Current using Common Emitter Current Gain

LaTeX Go Emitter Current = ((Common Emitter Current Gain+1)/Common Emitter Current Gain)*Saturation Current*e^(Base-Emitter Voltage/Thermal Voltage)

Emitter Current using Transistor Constant

LaTeX Go Emitter Current = (Saturation Current/Common-Base Current Gain)*e^(Base-Emitter Voltage/Thermal Voltage)

Emitter Current using Collector Current and Current Gain

LaTeX Go Emitter Current = ((Common Emitter Current Gain+1)/Common Emitter Current Gain)*Collector Current

Emitter Current using Transistor Constant Formula

LaTeX Go

Emitter Current = (Saturation Current/Common-Base Current Gain)*e^(Base-Emitter Voltage/Thermal Voltage)
I_e = (I_sat/α)*e^(V_BE/V_t)

What is an emitter current?

The emitter current, Ie, of a transistor is the amplified output current of a bipolar junction transistor.

How to Calculate Emitter Current using Transistor Constant?

Emitter Current using Transistor Constant calculator uses Emitter Current = (Saturation Current/Common-Base Current Gain)*e^(Base-Emitter Voltage/Thermal Voltage) to calculate the Emitter Current, The Emitter current using transistor constant is the amplified output current of a Bipolar Junction Transistor. Emitter Current is denoted by I_e symbol.

How to calculate Emitter Current using Transistor Constant using this online calculator? To use this online calculator for Emitter Current using Transistor Constant, enter Saturation Current (I_sat), Common-Base Current Gain (α), Base-Emitter Voltage (V_BE) & Thermal Voltage (V_t) and hit the calculate button. Here is how the Emitter Current using Transistor Constant calculation can be explained with given input values -> 5086.915 = (0.001675/0.985)*e^(5.15/4.7).

FAQ

What is Emitter Current using Transistor Constant?

The Emitter current using transistor constant is the amplified output current of a Bipolar Junction Transistor and is represented as I_e = (I_sat/α)*e^(V_BE/V_t) or Emitter Current = (Saturation Current/Common-Base Current Gain)*e^(Base-Emitter Voltage/Thermal Voltage). Saturation Current is the diode leakage current density in the absence of light. It is an important parameter which differentiates one diode from another, Common-base current gain α is related to β common-emitter current gain and its value is less than 1 because collector current is always less than emitter current due to recombination of electrons, Base-Emitter Voltage is the forward voltage between the base and emitter of the transistor & Thermal Voltage is the voltage produced within the p-n junction.

How to calculate Emitter Current using Transistor Constant?

The Emitter current using transistor constant is the amplified output current of a Bipolar Junction Transistor is calculated using Emitter Current = (Saturation Current/Common-Base Current Gain)*e^(Base-Emitter Voltage/Thermal Voltage). To calculate Emitter Current using Transistor Constant, you need Saturation Current (I_sat), Common-Base Current Gain (α), Base-Emitter Voltage (V_BE) & Thermal Voltage (V_t). With our tool, you need to enter the respective value for Saturation Current, Common-Base Current Gain, Base-Emitter Voltage & Thermal Voltage and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Emitter Current?

In this formula, Emitter Current uses Saturation Current, Common-Base Current Gain, Base-Emitter Voltage & Thermal Voltage. We can use 3 other way(s) to calculate the same, which is/are as follows -

Emitter Current = ((Common Emitter Current Gain+1)/Common Emitter Current Gain)*Saturation Current*e^(Base-Emitter Voltage/Thermal Voltage)
Emitter Current = ((Common Emitter Current Gain+1)/Common Emitter Current Gain)*Collector Current
Emitter Current = Cross-section Area of Base-Emitter Junction*[Charge-e]*Electron Diffusivity*(-Thermal Equilibrium Concentration/Width of Base Junction)

Home

FREE PDFs

🔍 Search