Collector Current using Emitter Current Calculator

✖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%
✖Emitter Current is the amplified output current of a bipolar junction transistor.ⓘ Emitter Current [I_e]			+10% -10%

✖Collector current is an amplified output current of a bipolar junction transistor.ⓘ Collector Current using Emitter Current [I_c]

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Formula

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Collector Current using Emitter Current

Formula

`"I"_{"c"} = "α"*"I"_{"e"}`

Example

`"5.000845mA"="0.985"*"5.077mA"`

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Collector Current using Emitter Current Solution

STEP 0: Pre-Calculation Summary

Formula Used

Collector Current = Common-Base Current Gain*Emitter Current
I_c = α*I_e
This formula uses 3 Variables

Variables Used

Collector Current - (Measured in Ampere) - Collector current is an amplified output current of a bipolar junction transistor.
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.
Emitter Current - (Measured in Ampere) - Emitter Current is the amplified output current of a bipolar junction transistor.

STEP 1: Convert Input(s) to Base Unit

Common-Base Current Gain: 0.985 --> No Conversion Required
Emitter Current: 5.077 Milliampere --> 0.005077 Ampere (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

I_c = α*I_e --> 0.985*0.005077

Evaluating ... ...

I_c = 0.005000845

STEP 3: Convert Result to Output's Unit

0.005000845 Ampere -->5.000845 Milliampere (Check conversion here)

FINAL ANSWER

5.000845 Milliampere <-- Collector Current

(Calculation completed in 00.004 seconds)

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Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

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Verified by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

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< 9 Collector Current Calculators

Collector Current when Saturation Current due to DC Voltage

Go Collector Current = Saturation Current*e^(Base-Emitter Voltage/Thermal Voltage)-Saturation Current for DC*e^(Base-Collector Voltage/Thermal Voltage)

Collector Current using Early Voltage for NPN Transistor

Go Collector Current = Saturation Current*e^(Base-Collector Voltage/Thermal Voltage)*(1+Collector-Emitter Voltage/Supply Voltage)

Collector Current given Early Voltage for PNP Transistor

Go Collector Current = Saturation Current*e^(-Base-Emitter Voltage/Thermal Voltage)*(1+Collector-Emitter Voltage/Supply Voltage)

Collector Current using Saturation Current

Go Collector Current = Saturation Current*e^(Base-Emitter Voltage*[Charge-e]/([BoltZ]*300))

Collector Current using Leakage Current

Go Collector Current = (Base Current*Common Emitter Current Gain)+Collector Emitter Leakage Current

Collector Current of PNP Transistor

Go Collector Current = Saturation Current*(e^(Base-Emitter Voltage/Thermal Voltage))

Collector Current of PNP Transistor when Common-Emitter Current Gain

Go Collector Current = Forced Common-Emitter Current Gain*Base Current

Collector Current using Emitter Current

Go Collector Current = Common-Base Current Gain*Emitter Current

Collector Current of BJT

Go Collector Current = Emitter Current-Base Current

< 20 BJT Circuit Calculators

Transition Frequency of BJT

Go Transition Frequency = Transconductance/(2*pi*(Emitter-Base Capacitance+Collector-Base Junction Capacitance))

Base Current of PNP Transistor using Saturation Current

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

Total Power Dissipated in BJT

Go Power = Collector-Emitter Voltage*Collector Current+Base-Emitter Voltage*Base Current

Unity-Gain Bandwidth of BJT

Go Unity-Gain Bandwidth = Transconductance/(Emitter-Base Capacitance+Collector-Base Junction Capacitance)

Reference Current of BJT Mirror

Go Reference Current = Collector Current+(2*Collector Current)/Common Emitter Current Gain

Common Mode Rejection Ratio

Go Common Mode Rejection Ratio = 20*log10(Differential Mode Gain/Common Mode Gain)

Output Resistance of BJT

Go Resistance = (Supply Voltage+Collector-Emitter Voltage)/Collector Current

Thermal Equilibrium Concentration of Minority Charge Carrier

Go Thermal Equilibrium Concentration = ((Intrinsic Carrier Density)^2)/Doping Concentration of Base

Output Voltage of BJT Amplifier

Go Output Voltage = Supply Voltage-Drain Current*Load Resistance

Total Power Supplied in BJT

Go Power = Supply Voltage*(Collector Current+Input Current)

Common-Base Current Gain

Go Common-Base Current Gain = Common Emitter Current Gain/(Common Emitter Current Gain+1)

Collector to Emitter Voltage at Saturation

Go Collector-Emitter Voltage = Base-Emitter Voltage-Base-Collector Voltage

Base Current of PNP Transistor given Emitter Current

Go Base Current = Emitter Current/(Common Emitter Current Gain+1)

Base Current of PNP Transistor using Collector Current

Go Base Current = Collector Current/Common Emitter Current Gain

Collector Current using Emitter Current

Go Collector Current = Common-Base Current Gain*Emitter Current

Base Current of PNP Transistor using Common-Base Current Gain

Go Base Current = (1-Common-Base Current Gain)*Emitter Current

Collector Current of BJT

Go Collector Current = Emitter Current-Base Current

Emitter Current of BJT

Go Emitter Current = Collector Current+Base Current

Short-Circuit Transconductance

Go Transconductance = Output Current/Input Voltage

Intrinsic Gain of BJT

Go Intrinsic Gain = Early Voltage/Thermal Voltage

Collector Current using Emitter Current Formula

Collector Current = Common-Base Current Gain*Emitter Current
I_c = α*I_e

On what factors does collector current of BJT depends?

I_c (collector current) is independent of the value of V_CB.(voltage across base-emitter junction) That
is, as long as the collector is positive with respect to the base, the electrons that reach the collector side of the base region will be swept into the collector and will register as a collector current. It is also directly proportional to emitter current.

How to Calculate Collector Current using Emitter Current?

Collector Current using Emitter Current calculator uses Collector Current = Common-Base Current Gain*Emitter Current to calculate the Collector Current, The Collector current using Emitter Current is the current that is because of the electrons that reach the collector region. Its direction will be opposite to that of the flow of electrons, and thus into the collector terminal. Its magnitude will be proportional to e_Vbe/Vt. Collector Current is denoted by I_c symbol.

How to calculate Collector Current using Emitter Current using this online calculator? To use this online calculator for Collector Current using Emitter Current, enter Common-Base Current Gain (α) & Emitter Current (I_e) and hit the calculate button. Here is how the Collector Current using Emitter Current calculation can be explained with given input values -> 5000.845 = 0.985*0.005077.

FAQ

What is Collector Current using Emitter Current?

The Collector current using Emitter Current is the current that is because of the electrons that reach the collector region. Its direction will be opposite to that of the flow of electrons, and thus into the collector terminal. Its magnitude will be proportional to e_Vbe/Vt and is represented as I_c = α*I_e or Collector Current = Common-Base Current Gain*Emitter Current. 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 & Emitter Current is the amplified output current of a bipolar junction transistor.

How to calculate Collector Current using Emitter Current?

The Collector current using Emitter Current is the current that is because of the electrons that reach the collector region. Its direction will be opposite to that of the flow of electrons, and thus into the collector terminal. Its magnitude will be proportional to e_Vbe/Vt is calculated using Collector Current = Common-Base Current Gain*Emitter Current. To calculate Collector Current using Emitter Current, you need Common-Base Current Gain (α) & Emitter Current (I_e). With our tool, you need to enter the respective value for Common-Base Current Gain & Emitter Current 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 Collector Current?

In this formula, Collector Current uses Common-Base Current Gain & Emitter Current. We can use 9 other way(s) to calculate the same, which is/are as follows -

Collector Current = Saturation Current*e^(Base-Emitter Voltage/Thermal Voltage)-Saturation Current for DC*e^(Base-Collector Voltage/Thermal Voltage)
Collector Current = (Base Current*Common Emitter Current Gain)+Collector Emitter Leakage Current
Collector Current = Forced Common-Emitter Current Gain*Base Current
Collector Current = Saturation Current*e^(Base-Collector Voltage/Thermal Voltage)*(1+Collector-Emitter Voltage/Supply Voltage)
Collector Current = Saturation Current*e^(-Base-Emitter Voltage/Thermal Voltage)*(1+Collector-Emitter Voltage/Supply Voltage)
Collector Current = Saturation Current*e^(Base-Emitter Voltage*[Charge-e]/([BoltZ]*300))
Collector Current = Saturation Current*(e^(Base-Emitter Voltage/Thermal Voltage))
Collector Current = Emitter Current-Base Current
Collector Current = Emitter Current-Base Current

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