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#1 anything

anything

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Posted 15 December 2004 - 07:03 PM

emission color: white
view angle: ±15°
forward voltage: 3.0V-3.3V(Max 3.8)
peak emission wavelength: na
luminous intensity: 10,000-12,000 MCD
lifetime : 100,000 hours
reverse current : 20mA
added info: Water clear lens


what type of a resistor would i need for that????
its a led....

#2 XxXDarkwraitHXxX

XxXDarkwraitHXxX

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Posted 15 December 2004 - 07:05 PM

Use this.

#3 anything

anything

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Posted 15 December 2004 - 07:10 PM

yo what does voltage drop across from led mean......



and thanks

#4 XxXDarkwraitHXxX

XxXDarkwraitHXxX

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Posted 15 December 2004 - 07:21 PM

QUOTE (anything @ Dec 15 2004, 11:06 AM)
emission color:  white
view angle:  ±15°
forward voltage:  3.0V-3.3V(Max 3.8)
peak emission wavelength:  na
luminous intensity:  10,000-12,000 MCD
lifetime :  100,000 hours
reverse current :  20mA
added info:  Water clear lens


what type of a resistor would i need for that????
its a led....


The one in bold. Voltage drop means how much does the led take to power it. In this case, use 3.8 volts.

#5 anything

anything

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Posted 15 December 2004 - 07:28 PM

so it would look like this??



Supply Voltage
VOLTS 3.0
Voltage Drop Across LED
VOLTS 3.8
Desired LED Current
MILLIAMPS 20

#6 anything

anything

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Posted 15 December 2004 - 07:52 PM

anyone ??? well can you do it???? please

#7 XxXDarkwraitHXxX

XxXDarkwraitHXxX

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Posted 15 December 2004 - 07:55 PM

No. Instead of 3.0 put 5.0. That's how much volts you are using to power the leds.

Edited by XxXDarkwraitHXxX, 15 December 2004 - 08:00 PM.





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