http://ledcalculator.net/ <-- Link to the simple LED circuit designer/calculator |
http://led.linear1.org/led.wiz <-- Link to the LED series/parallel array design wizard |
All LED's (excluding the LED indicator lamps) require a resistor in series to limit the current to the required specification (usually 20mA). Use Ohm's law to calculate the value of the resistor required. Most LED's have a voltage drop of 2 volts. Blue & White LED's are 3.5 - 4 volts. |
V=IR (volts = current(amps) x resistance(ohms)). For a 12VDC supply voltage @ 20mA the required resistor would be: 10 (volts) / .02 (amps) = 500 ohms |
LED'S ARE SUITABLE FOR DC ONLY |
Manufacturer (aka Brand): | Mode Electronics |
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