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Collector-Current of PNP Transistor Formula

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Collector current is the current that flows through the collector terminal of the transistor and is the current that is being amplified by the transistor. Check FAQs

I c = \frac{q \cdot A \cdot N d \cdot D p}{W b}

I_c - Collector Current?q - Charge?A - Emitter Base Junction Area?N_d - Equilibrium Concentration of N-Type?D_p - Diffusion Constant For PNP?W_b - Base Width?

Collector-Current of PNP Transistor Example

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Here is how the Collector-Current of PNP Transistor equation looks like with Values.

Here is how the Collector-Current of PNP Transistor equation looks like with Units.

Here is how the Collector-Current of PNP Transistor equation looks like.

4.9219 = \frac{5 \cdot 1.75 \cdot 45 \cdot 100}{8}

4.9219A = \frac{5mC \cdot 1.75cm² \cdot 451/cm³ \cdot 100cm²/s}{8cm}

4.9219 = \frac{5 \cdot 1.75 \cdot 45 \cdot 100}{8}

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Collector-Current of PNP Transistor Solution

Follow our step by step solution on how to calculate Collector-Current of PNP Transistor?

FIRST Step Consider the formula

I c = \frac{q \cdot A \cdot N d \cdot D p}{W b}

Next Step Substitute values of Variables

∴

I c = \frac{5mC \cdot 1.75cm² \cdot 451/cm³ \cdot 100cm²/s}{8cm}

Next Step Convert Units

∴

I c = \frac{0.005C \cdot 0.0002m² \cdot 4.5E+71/m³ \cdot 0.01m²/s}{0.08m}

Next Step Prepare to Evaluate

∴

I c = \frac{0.005 \cdot 0.0002 \cdot 4.5E+7 \cdot 0.01}{0.08}

Next Step Evaluate

∴

I c = 4.921875A

LAST Step Rounding Answer

∴

I c = 4.9219A

Collector-Current of PNP Transistor Formula Elements

Variables

Collector Current

Collector current is the current that flows through the collector terminal of the transistor and is the current that is being amplified by the transistor.

Symbol: I_c

Measurement: Electric CurrentUnit: A

Note: Value should be greater than 0.

Formulas to find Collector Current

Charge

Charge a characteristic of a unit of matter that expresses the extent to which it has more or fewer electrons than protons.

Symbol: q

Measurement: Electric ChargeUnit: mC

Note: Value should be greater than 0.

Formulas to find Charge

Emitter Base Junction Area

Emitter Base Junction Area is a P-N junction formed between the heavily doped P-type material (emitter) and the lightly doped N-type material (base) of the transistor.

Symbol: A

Measurement: AreaUnit: cm²

Note: Value should be greater than 0.

Formulas to find Emitter Base Junction Area

Equilibrium Concentration of N-Type

Equilibrium Concentration of N-Type is equal to the density of donor atoms because the electrons for conduction are solely given by the donor atom.

Symbol: N_d

Measurement: Carrier ConcentrationUnit: 1/cm³

Note: Value should be greater than 0.

Formulas to find Equilibrium Concentration of N-Type

Diffusion Constant For PNP

Diffusion Constant For PNP describes how easily these minority carriers diffuse through the semiconductor material when an electric field is applied.

Symbol: D_p

Measurement: DiffusivityUnit: cm²/s

Note: Value should be greater than 0.

Formulas to find Diffusion Constant For PNP

Base Width

The base width is an important parameter affecting the transistor's characteristics, especially in terms of its operation and speed.

Symbol: W_b

Measurement: LengthUnit: cm

Note: Value can be positive or negative.

Formulas to find Base Width

Other formulas in Bipolar IC Fabrication category

Go Impurity with Intrinsic Concentration

n i = \sqrt{\frac{n e \cdot p}{t o}}

Go Ohmic Conductivity of Impurity

σ = q \cdot (μ n \cdot n e + μ p \cdot p)

Go Breakout Voltage of Collector Emitter

V ce = \frac{V cb}{{(i g)}^{\frac{1}{n}}}

Go Conductivity of N-Type

σ = q \cdot (μ n \cdot N d + μ p \cdot (\frac{{n i}^{2}}{N d}))

How to Evaluate Collector-Current of PNP Transistor?

Collector-Current of PNP Transistor evaluator uses Collector Current = (Charge*Emitter Base Junction Area*Equilibrium Concentration of N-Type*Diffusion Constant For PNP)/Base Width to evaluate the Collector Current, The Collector-Current of PNP Transistor formula is defined as parameter in the operation of a transistor and is used to analyze and design transistor circuits. The current gain of a transistor is specified in its datasheet and can vary depending on the specific transistor model and operating various factors, such as the input biasing, load resistance, and the transistor's characteristics, impact the collector current. Collector Current is denoted by I_c symbol.

How to evaluate Collector-Current of PNP Transistor using this online evaluator? To use this online evaluator for Collector-Current of PNP Transistor, enter Charge (q), Emitter Base Junction Area (A), Equilibrium Concentration of N-Type (N_d), Diffusion Constant For PNP (D_p) & Base Width (W_b) and hit the calculate button.

FAQs on Collector-Current of PNP Transistor

What is the formula to find Collector-Current of PNP Transistor?

The formula of Collector-Current of PNP Transistor is expressed as Collector Current = (Charge*Emitter Base Junction Area*Equilibrium Concentration of N-Type*Diffusion Constant For PNP)/Base Width. Here is an example- 4.921875 = (0.005*0.000175*45000000*0.01)/0.08.

How to calculate Collector-Current of PNP Transistor?

With Charge (q), Emitter Base Junction Area (A), Equilibrium Concentration of N-Type (N_d), Diffusion Constant For PNP (D_p) & Base Width (W_b) we can find Collector-Current of PNP Transistor using the formula - Collector Current = (Charge*Emitter Base Junction Area*Equilibrium Concentration of N-Type*Diffusion Constant For PNP)/Base Width.

Can the Collector-Current of PNP Transistor be negative?

No, the Collector-Current of PNP Transistor, measured in Electric Current cannot be negative.

Which unit is used to measure Collector-Current of PNP Transistor?

Collector-Current of PNP Transistor is usually measured using the Ampere[A] for Electric Current. Milliampere[A], Microampere[A], Centiampere[A] are the few other units in which Collector-Current of PNP Transistor can be measured.

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Collector-Current of PNP Transistor Formula

Collector-Current of PNP Transistor Example

Collector-Current of PNP Transistor Solution

Collector-Current of PNP Transistor Formula Elements

Other formulas in Bipolar IC Fabrication category

How to Evaluate Collector-Current of PNP Transistor?

FAQs on Collector-Current of PNP Transistor

Variable Name