Base Current of PNP Transistor using Common-Base Current Gain 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%

✖Base Current is a crucial current of bipolar junction transistor. Without the base current, the transistor cannot turn on.ⓘ Base Current of PNP Transistor using Common-Base Current Gain [I_B]

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Base Current of PNP Transistor using Common-Base Current Gain Solution

STEP 0: Pre-Calculation Summary

Formula Used

Base Current = (1-Common-Base Current Gain)*Emitter Current
I_B = (1-α)*I_e
This formula uses 3 Variables

Variables Used

Base Current - (Measured in Ampere) - Base Current is a crucial current of bipolar junction transistor. Without the base current, the transistor cannot turn on.
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_B = (1-α)*I_e --> (1-0.985)*0.005077

Evaluating ... ...

I_B = 7.61550000000001E-05

STEP 3: Convert Result to Output's Unit

7.61550000000001E-05 Ampere -->0.0761550000000001 Milliampere (Check conversion here)

FINAL ANSWER

0.0761550000000001 ≈ 0.076155 Milliampere <-- Base Current

(Calculation completed in 00.007 seconds)

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Birsa Institute of Technology (BIT), Sindri

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< Base Current Calculators

Base Current using Saturation Current in DC

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

Drain Current given Device Parameter

LaTeX Go Drain Current = 1/2*Transconductance*Aspect Ratio*(Effective Voltage-Threshold Voltage)^2*(1+Device Parameter*Voltage between Drain and Source)

Base Current 2 of BJT

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

Base Current 1 of BJT

LaTeX Go Base Current = Collector Current/Common Emitter Current Gain

< BJT Circuit Calculators

Total Power Dissipated in BJT

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

Common Mode Rejection Ratio

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

Common-Base Current Gain

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

Intrinsic Gain of BJT

LaTeX Go Intrinsic Gain = Early Voltage/Thermal Voltage

Base Current of PNP Transistor using Common-Base Current Gain Formula

LaTeX Go

Base Current = (1-Common-Base Current Gain)*Emitter Current
I_B = (1-α)*I_e

What is PNP transistor?

The transistor in which one n-type material is doped with two p-type materials such type of transistor is known as PNP transistor. The PNP transistor turns on when a small current flows through the base. The direction of current in the PNP transistor is from the emitter to the collector.

How to Calculate Base Current of PNP Transistor using Common-Base Current Gain?

Base Current of PNP Transistor using Common-Base Current Gain calculator uses Base Current = (1-Common-Base Current Gain)*Emitter Current to calculate the Base Current, The Base Current of PNP Transistor using Common-Base Current Gain is proportional to the number of electrons injected into the base. Base Current is denoted by I_B symbol.

How to calculate Base Current of PNP Transistor using Common-Base Current Gain using this online calculator? To use this online calculator for Base Current of PNP Transistor using Common-Base Current Gain, enter Common-Base Current Gain (α) & Emitter Current (I_e) and hit the calculate button. Here is how the Base Current of PNP Transistor using Common-Base Current Gain calculation can be explained with given input values -> 76.155 = (1-0.985)*0.005077.

FAQ

What is Base Current of PNP Transistor using Common-Base Current Gain?

The Base Current of PNP Transistor using Common-Base Current Gain is proportional to the number of electrons injected into the base and is represented as I_B = (1-α)*I_e or Base Current = (1-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 Base Current of PNP Transistor using Common-Base Current Gain?

The Base Current of PNP Transistor using Common-Base Current Gain is proportional to the number of electrons injected into the base is calculated using Base Current = (1-Common-Base Current Gain)*Emitter Current. To calculate Base Current of PNP Transistor using Common-Base Current Gain, 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 Base Current?

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

Base Current = Collector Current/Common Emitter Current Gain
Base Current = (Saturation Current/Common Emitter Current Gain)*(e^(Base-Emitter Voltage/Thermal Voltage))
Base Current = (Saturation Current/Common Emitter Current Gain)*e^(Base-Collector Voltage/Thermal Voltage)+Saturation Vapour Pressure*e^(Base-Collector Voltage/Thermal Voltage)

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