100 x LED Red 3mm Round – Tinted – Clear – Standard Package T-1
$2.45
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| Quantity | 3 - 9 | $2.33 |
| Quantity | 10 - 24 | $2.23 |
| Quantity | 25 + | $2.16 |
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Description
100 pieces LED Red 3mm, tinted, clear LED in T-1 package (3mm).
The max. continuous current is 20mA, resulting in 1.8-2.0V forward voltage.
LEDs are operated at constant current, not voltage! It is necessary, to limit the LEDs forward current with a resistor.
The value of the resistor is easy to calculate following Ohm’s law: R = U / I. For example, on a 12V power supply, U = 12-2 = 10V, I = 0.02A. The resistor in this circuit should not be less than 10V / 0.02A = 500 Ohm (for max. brightness).
LEDs, operating on their current limit, are barely producing more visible brightness than when operated with a lower current, but they will have a much shorter life span. Therefore, we always set the LED current to about 1-5mA in our developments.
Additional information
| Manufacturer | UNIVERSAL-SOLDER |
|---|---|
| Brand | CANADUINO |
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