Transition Capacitance Calculator

Calculate Transition Capacitance





Formula

The formula to calculate Transition Capacitance (CT) is:

\[ CT = \frac{[\text{Permittivity-vacuum}] \cdot Ajp}{Wd} \]

Definition

The transition capacitance represents the change in charge stored in the depletion region with respect to a change in junction voltage. Junction Plate Area is defined as the total surface area of the plates of p and n junctions. Width of depletion region acts as a barrier that opposes the flow of electrons from the n-side to the p-side of the semiconductor diode.

Example Calculation

Let's assume the following values:

Using the formula:

\[ CT = \frac{8.85E-12 \cdot 0.019}{0.022} \approx 7.64318181818182E-12 \]

The Transition Capacitance is approximately 7.64318181818182E-12 Farad.

Conversion Chart

Junction Plate Area (Square Meter) Width of Depletion Region (Meter) Transition Capacitance (Farad)
0.018 0.022 0.000000000007241
0.019 0.022 0.000000000007643
0.02 0.022 0.000000000008045