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large white 5mm led

White 5mm Diffused LED - 700mCd

Stock code: 3542
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SKU: 3542 Categories: , , , , , Tags: , , , , , , , Brand:

White 5mm Standard Diffused LED with a viewing angle of 60 degrees. Luminous intensity 700mCd.

Forward voltage drop: 3.1 V
Viewing angle: 60 degrees
Max forward current: 25 mA
Luminous intensity: 700 mCd (@20mA)
Lens types: Diffused

Click here to download a datasheet pdf_icon.gif

Technical Information

AttributeValue
Forward voltage drop 3.1V.
Viewing angle 60 degrees.
Typical forward current 20 mA.
Max forward current 25 mA.
Luminous intensity 700 mCd (@20mA).
Lens types Diffused.
V
mA
V
Ohms
Ohms
Enter the operating voltage, click calculate resistor, and the resistor value to work with the LED described on this page will be shown.

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Questions and answers

    Hi If I have 4 of these powered by a 9v battery how many hours of illumination could I expect to get?Kind regards James
  1. 0 votes
    Q Hi If I have 4 of these powered by a 9v battery how many hours of illumination could I expect to ...... Read more
    Asked by james walshaw on January 25, 2018 12:00 am
    Answered by the admin Hi James, It would depend on the capacity of the battery. If you are using a standard 9V then these have a range of capacity from around 400-1000mAh. This LED draws around 20mA, so 4 would draw around 80mA, if your battery had the lowest end capacity of 400mAh then you would get around 5 hours of constant illumination.
    2. Would it be okay to use this led with a Micro:bit? If so would a 'protective' series resistor (47 ohm?) be needed? Thank you.
  2. 0 votes
    Q Would it be okay to use this led with a Micro:bit? If so would a 'protective' series resistor (47...... Read more
    Asked by Paul on September 15, 2017 12:00 am
    Answered by the admin Hi Paul, As the LEDs forward voltage and the micro:bit supply voltage are the same there wouldn't be a need for a resistor as you don't need to drop any voltage.
    3. What power will I need to make one of these light up? 2x 1.5V batteries?
  3. 0 votes
    Q What power will I need to make one of these light up? 2x 1.5V batteries?
    Asked by Dr T on May 15, 2012 12:00 am
    Answered by the admin The forward voltage on this LED is 3.1V so you need at least 3.1V from your battery. 2 AA batteries will give you 3V when they are new, however over time the voltage will drop down to 1V per cell or 2V across both of the batteries. You can probably get away with a 3V power source on an LED with a 3.1V forward voltage, but it certainly won't work down at 2V. You might be better going for 3x AA batteries with a 68 ohm or 100 ohm series current limit resistor.
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