100 x LED Red 3mm Round – Tinted – Clear – Standard Package T-1
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|Discount Type||Quantity||Volume Price|
|Quantity||3 - 9||5% $2.33|
|Quantity||10 - 24||9% $2.23|
|Quantity||25 +||12% $2.16|
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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.
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