Use this LED resistor calculator to find out the suitable resistance for your LED circuit consisting of one or more LEDs.Inputs Source Voltage (Vs): Volt LED Forward Voltage (Vf): Volt (Typical value: 2v) LED Forward Current (If) Milliamps (Typical value: 20mA) No. of LEDs in Series...
LED Resistor CalculatorCalculate the resistor to use in a circuit with an LED by entering the supply voltage, forward voltage, and forward current below. Optionally calculate the resistor to accommodate multiple LEDs connected in series. Supply Voltage: V LED Color: Forward Voltage: V ...
If you don't have a calculator handy, use this JavaScript resistor calculator to do the math. Source Voltage= LED Forward Voltage Drop= LED Forward Current in Milliamps= Needed Resistance in Ohms= Using Closest Standard 5% Resistor Closest Standard 5% Resistor= ...
LED Resistor Calculator To calculate the resistor needed for a simple LED circuit, simply take the voltage drop away from the source voltage then apply Ohm's Law. In other words... where: VSis the source voltage, measured in volts (V), ...
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. The program will draw a small schematic, display the calculated resis...
Every (LED) light emitting diode has a current that they can handle safely. Going beyond it maximum current will damage the LED. So limiting the current through the LED with the use of a series resistor is a common practice. LED resistance calculator will help you determine the value of th...
Series LED CircuitThis calculator will show you what sized resistor to use for a series of LEDs. Enter any voltage between 1 and 150 in the first column. Enter the LED voltage drop (LED voltage) in the second column. This can range from 1 to 100. Enter the LED current in the third...
calculator will help you determine the value of the resistor so you can add in series with the LED to limit the current. Just input the indicated values and the result will be calculate automatically. The result include Resistor Value, Resistor Power Dissipation and Recommended Resistor Wattage. ...
IMPORTANT:If multiple LED's are to be connected in series,addtheir device voltages together for theVdvalue. LED - RESISTOR CALCULATOR Supply Voltage (Vs) Volts Device (LED) Voltage (Vd) Volts Desired LED Current (I) Milliamps Calculated Limiting Resistor (R) ...
Series LED Resistor Calculator Tools This series LED resistance calculator is perfect for when you have a single LED or a number of the same color of LEDs in series and need to know which resistor you should use. Series-Parallel DC Circuits Worksheets - LED Drivers Don’t just sit th...