Collector-Base Junction Capacitance Solution

STEP 0: Pre-Calculation Summary
Formula Used
Collector-Base Junction Capacitance = Collector-Base Junction Capacitance at 0 Voltage/(1+(Reverse-Bias Voltage/Built-In Voltage))^Grading Coefficient
Ccb = Ccb0/(1+(VDB/Vbinc))^m
This formula uses 5 Variables
Variables Used
Collector-Base Junction Capacitance - (Measured in Farad) - Collector-Base Junction Capacitance in active mode is reverse biased and is the capacitance between collector and base.
Collector-Base Junction Capacitance at 0 Voltage - (Measured in Farad) - Collector-base junction capacitance at 0 voltage is the capacitance at the junction of collector-base at zero voltage.
Reverse-Bias Voltage - (Measured in Volt) - Reverse-bias voltage means putting a voltage across a diode in the opposite direction.
Built-In Voltage - (Measured in Volt) - Built-in voltage is simply the difference of the Fermi levels in p- and n-type semiconductors before they were joined.
Grading Coefficient - The grading Coefficient is the parameter estimated using the gradation curve through sieve analysis.
STEP 1: Convert Input(s) to Base Unit
Collector-Base Junction Capacitance at 0 Voltage: 2.3 Microfarad --> 2.3E-06 Farad (Check conversion here)
Reverse-Bias Voltage: 13 Volt --> 13 Volt No Conversion Required
Built-In Voltage: 1.15 Volt --> 1.15 Volt No Conversion Required
Grading Coefficient: 0.4 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Ccb = Ccb0/(1+(VDB/Vbinc))^m --> 2.3E-06/(1+(13/1.15))^0.4
Evaluating ... ...
Ccb = 8.42760934851159E-07
STEP 3: Convert Result to Output's Unit
8.42760934851159E-07 Farad -->0.842760934851159 Microfarad (Check conversion here)
FINAL ANSWER
0.842760934851159 0.842761 Microfarad <-- Collector-Base Junction Capacitance
(Calculation completed in 00.004 seconds)

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10+ Internal Capacitive Effects and High Frequency Model Calculators

Collector-Base Junction Capacitance
Go Collector-Base Junction Capacitance = Collector-Base Junction Capacitance at 0 Voltage/(1+(Reverse-Bias Voltage/Built-In Voltage))^Grading Coefficient
Transition Frequency of BJT
Go Transition Frequency = Transconductance/(2*pi*(Emitter-Base Capacitance+Collector-Base Junction Capacitance))
Concentration of Electrons Injected from Emitter to Base
Go Concentration of e- Injected from Emitter to Base = Thermal Equilibrium Concentration*e^(Base-Emitter Voltage/Thermal Voltage)
Unity-Gain Bandwidth of BJT
Go Unity-Gain Bandwidth = Transconductance/(Emitter-Base Capacitance+Collector-Base Junction Capacitance)
Small-Signal Diffusion Capacitance of BJT
Go Emitter-Base Capacitance = Device Constant*(Collector Current/Threshold Voltage)
Thermal Equilibrium Concentration of Minority Charge Carrier
Go Thermal Equilibrium Concentration = ((Intrinsic Carrier Density)^2)/Doping Concentration of Base
Small-Signal Diffusion Capacitance
Go Emitter-Base Capacitance = Device Constant*Transconductance
Stored Electron Charge in Base of BJT
Go Stored Electron Charge = Device Constant*Collector Current
Transition Frequency of BJT given Device Constant
Go Transition Frequency = 1/(2*pi*Device Constant)
Base-Emitter Junction Capacitance
Go Base–Emitter Junction Capacitance = 2*Emitter-Base Capacitance

Collector-Base Junction Capacitance Formula

Collector-Base Junction Capacitance = Collector-Base Junction Capacitance at 0 Voltage/(1+(Reverse-Bias Voltage/Built-In Voltage))^Grading Coefficient
Ccb = Ccb0/(1+(VDB/Vbinc))^m

What is collector base and emitter?

The emitter-base junction injects a large amount of majority charge carrier into the base because it is heavily doped and moderate in size. Collector – The section which collects the major portion of the majority charge carrier supplied by the emitter is called a collector.

How to Calculate Collector-Base Junction Capacitance?

Collector-Base Junction Capacitance calculator uses Collector-Base Junction Capacitance = Collector-Base Junction Capacitance at 0 Voltage/(1+(Reverse-Bias Voltage/Built-In Voltage))^Grading Coefficient to calculate the Collector-Base Junction Capacitance, The Collector-base junction capacitance formula is defined as the capacitance between each of its terminals (i.e., base, emitter, collector). These capacitances ultimately limit amplifier bandwidth. If the signal frequency gets high enough, these capacitances can affect amplifier performance. Collector-Base Junction Capacitance is denoted by Ccb symbol.

How to calculate Collector-Base Junction Capacitance using this online calculator? To use this online calculator for Collector-Base Junction Capacitance, enter Collector-Base Junction Capacitance at 0 Voltage (Ccb0), Reverse-Bias Voltage (VDB), Built-In Voltage (Vbinc) & Grading Coefficient (m) and hit the calculate button. Here is how the Collector-Base Junction Capacitance calculation can be explained with given input values -> 842760.9 = 2.3E-06/(1+(13/1.15))^0.4.

FAQ

What is Collector-Base Junction Capacitance?
The Collector-base junction capacitance formula is defined as the capacitance between each of its terminals (i.e., base, emitter, collector). These capacitances ultimately limit amplifier bandwidth. If the signal frequency gets high enough, these capacitances can affect amplifier performance and is represented as Ccb = Ccb0/(1+(VDB/Vbinc))^m or Collector-Base Junction Capacitance = Collector-Base Junction Capacitance at 0 Voltage/(1+(Reverse-Bias Voltage/Built-In Voltage))^Grading Coefficient. Collector-base junction capacitance at 0 voltage is the capacitance at the junction of collector-base at zero voltage, Reverse-bias voltage means putting a voltage across a diode in the opposite direction, Built-in voltage is simply the difference of the Fermi levels in p- and n-type semiconductors before they were joined & The grading Coefficient is the parameter estimated using the gradation curve through sieve analysis.
How to calculate Collector-Base Junction Capacitance?
The Collector-base junction capacitance formula is defined as the capacitance between each of its terminals (i.e., base, emitter, collector). These capacitances ultimately limit amplifier bandwidth. If the signal frequency gets high enough, these capacitances can affect amplifier performance is calculated using Collector-Base Junction Capacitance = Collector-Base Junction Capacitance at 0 Voltage/(1+(Reverse-Bias Voltage/Built-In Voltage))^Grading Coefficient. To calculate Collector-Base Junction Capacitance, you need Collector-Base Junction Capacitance at 0 Voltage (Ccb0), Reverse-Bias Voltage (VDB), Built-In Voltage (Vbinc) & Grading Coefficient (m). With our tool, you need to enter the respective value for Collector-Base Junction Capacitance at 0 Voltage, Reverse-Bias Voltage, Built-In Voltage & Grading Coefficient and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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