DigiKey's LED series resistor calculator uses supply voltage, forward voltage, and forward current values to help you identify the correct series resistor.
Our application will help you find the right resistor combination, easing this challenging task. A simple solution to a complex problem Our application is exactly what you need to solve this task. We have gathered a team of talented engineers and programmers who have put all their efforts into developing an efficient and easy-to-use solution.
This LED calculator will help you calculate the resistor values you will need when designing a series/parallel LED array circuit.
The LED Resistor Calculator calculates the resistor value required for LED circuits. Input source voltage, LED voltage, and LED current to determine the recommended resistor value and power rating. This calculator uses Ohm’s Law to provide accurate calculations for safe LED operation.
Resistor finder Finds a combination of two series or parallel connected resistors for a custom value. Returns a list of the best values found.
Use this resistor calculator to to calculate the color codes on 1/8, 1/4, and 1/2 watt resistors. Just select the color bands and the results will display.
Our LED calculator will help you determine the value of the current limiting series resistor when driving a single or an array of low-current LEDs. To get started, input the required values and hit the "Calculate" button.
Resistor Value = (Vs – VF)/ IF Where Vs = Input Supply DC voltage VF = LED Forward Voltage IF = LED current in mA (mill amperes) If you want to know more about how to calculate the Resistors values for different LED’s circuit i.e., series, parallel, and series parallel, then read this interesting Article about the Topic.
The calculator on the right will list 5% resistor combinations that will be very close to almost any reasonable value. The combinations will be made from 1 to 10 standard common 5% resistors, connected in parallel. This can be useful when your looking for a specific value and wattage. For example: if you need a 1 Watt, 1,234 Ω resistor, but only have 1/4 Watt resistors available. You could ...
What Is the Resistor Calculator? The Resistor Calculator is a practical tool that helps you determine a resistor's value based on its color bands, or vice versa. It supports standard 4-band, 5-band, and 6-band resistors, making it easy to decode resistance values without the need for manual charts or electrical measuring tools.
Resistor Calculator category offers a collection of tools to simplify resistor-related calculations. These calculators help determine resistance values, color codes, series and parallel combinations, power ratings, and voltage divider configurations.
Calculate resistor for LED This tool is designed to simplify the process of determining the required resistor value when connecting an LED to a power source. Simply enter the LED and power supply parameters and the calculator will provide you with the optimal resistor value, ensuring a safe and efficient LED connection.
A simple series circuit To calculate the resistor you need, just add the voltage: we need 4V (2V + 2V), and we have 5V. So we need to drop 1V. For the current, just use the 20mA.
These tools allow you to determine the ohm value and tolerance using resistor color codes, calculate the total resistance when resistors are connected in parallel or series, and even estimate conductor resistance based on size and conductivity. Specifically, the resistor color code calculator enables you to easily identify the ohm value and tolerance by inputting the color bands of a resistor.
A further increase of the voltage will then cause a drastic increase in current. This is exactly the point where you need the resistor: The resistor will define the current above the voltage where the LED starts to conduct heavily. You choose a resistor for the difference between supply and "LED voltage".
Determining the resistor value for lighting LEDs is simple and straightforward, but we must take into consideration the color of the LED as well as the wattage rating of the required resistor, and the number of LEDs in the circuit. We hope reading 5 Steps to Calculate the Resistor value for LEDs gives you what you would need for your project.
Using the correct resistor with an LED is important. Too little resistance and the LED will blow, and too much makes the LED dim. To calculate the correct resistance needed, simply take the voltage drop of the LED away from the source voltage, and then apply Ohm's law as you would normally to calculate resistance: R = (V s x V led) / I R is the resistance in ohms, Vs is the source voltage ...
This tutorial explains how to calculate the resistance needed for a resistor in a series LED circuit, considering factors such as supply voltage, LED voltage, LED current, and number of LEDs. It pertains to the field of physics, specifically electronics
