Enter the voltage and current through the transistor, and the resistance of the transistor into the calculator to determine the drain capacity.

## Drain Capacity Formula

The following formula is used to calculate the drain capacity.

DC = (V * I) / R

Variables:

- DC is the drain capacity (A)
- V is the voltage across the transistor (V)
- I is the current through the transistor (A)
- R is the resistance of the transistor (Ohms)

To calculate the drain capacity, multiply the voltage across the transistor by the current through the transistor. Then divide the result by the resistance of the transistor.

## What is a Drain Capacity?

Drain capacity refers to the maximum amount of current a transistor can handle when it is turned on. It is a critical specification in electronic devices, as exceeding the drain capacity can cause the transistor to overheat or fail, potentially damaging the device. The drain capacity is typically measured in amperes (A) and can vary depending on the type and size of the transistor.

## How to Calculate Drain Capacity?

The following steps outline how to calculate the Drain Capacity (DC) using the given formula:

- First, determine the voltage across the transistor (V) in volts.
- Next, determine the current through the transistor (I) in amperes.
- Next, determine the resistance of the transistor (R) in ohms.
- Next, use the formula DC = (V * I) / R to calculate the Drain Capacity.
- Finally, insert the values of V, I, and R into the formula and calculate the result.

**Example Problem:**

Use the following variables as an example problem to test your knowledge:

Voltage across the transistor (V) = 12V

Current through the transistor (I) = 2A

Resistance of the transistor (R) = 4Ω