LED Calculator
This LED calculator will calculate the current limiting resistor value and rounds the resistance to closest standard 5% resistor value.To use this software you need to enable Javascript in your browser.(works fine in IE7 and Firefox 3)
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| Source Voltage : | V | |||
| LED Forward Voltage(Vf) : | V | |||
| LED Forward Current(If) : | mA | |||
| Calculated Resistance : | Ω | |||
| Recommended value using closest standard 5% resistor (See image above) |
| Closest Standard 5% Resistor : | Ω | |
| Actual Current : | mA | |
| Resistor power ratings : | W | |
| Power Dissipated By LED : | W | |
| Power Dissipated By Resistor : | W | |
| Note : Some calculated values may be invalid in the practice. | ||
LED Calculator
Version 1.0 © www.WhatCircuits.com
Version 1.0 © www.WhatCircuits.com