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Thread: Help sourcing IR LEDs

  1. #1
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    Default Help sourcing IR LEDs

    I'm looking to outfit a DIYC Flood for blasting my guests with 940nm-950nm IR. This is to have them bring their own Disney® Glow With The Show™ hats to my display and take control of them. I have a couple of those floods un-built from a previous group buy so I already have constant current LED drivers and the rest of the BOM. I simply need to find some 5mm Piranha Style Super Flux LEDs that are 940-950nm.

    I tried a few google searches and the only ones I could find were either 850nm which won't work, or minimum order qty of 2k+.

    I know some of you out there probably have some places for me to check, especially those of you running stores/group buys.

    Thanks in advance for the tips!
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  2. #2
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    Default Re: Help sourcing IR LEDs

    Well you can always put 2 or more ones in each slot.

    This one has a 30deg angle. The ir led seam to suck down quite a bit of power though so i am not sure they will work.
    http://www.mouser.com/ProductDetail/...UUGOuZxKXSs%3d
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  3. #3
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    Default Re: Help sourcing IR LEDs

    There are quite a few higher power 940nm IR LEDs out there (1W - 20W are easy to find). They will need some changes to the power supply to drive.
    /mike

  4. #4
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    Default Re: Help sourcing IR LEDs

    I thought he we looking for Piranha style, which are the 4 pin square devices. (I opted to create a small daughter card that contains 15 standard 5mm leds, and uses a resistor for the constant current source. So far so good). I can post gerbers if anyone else wants to try.
    Standard Disclaimers apply:
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  5. #5
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    Default Re: Help sourcing IR LEDs

    I looked for some to make a IR Flood out of a DIYC Flood board for a CCTV camera, but could not find any that were not in the visible range. Let me know if you find anything.

  6. #6
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    Default Re: Help sourcing IR LEDs

    Vishay has one of the best product selections. If your looking for a 4 leg thru hole?

    http://www.vishay.com/ir-emitting-di...product-82564/

  7. #7
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    Default Re: Help sourcing IR LEDs

    Quote Originally Posted by Utimgr View Post
    Vishay has one of the best product selections. If your looking for a 4 leg thru hole?

    http://www.vishay.com/ir-emitting-di...product-82564/
    Mouser just added these... are these drop-in replacements to fit the DIYCFlood?

    Should I get a different LED driver?

    I'm going to place a mouser order tomorrow for these and hopefully get myself a GwtS transmitter this year after all!
    [url]http://christmasonquiethills.com/[/url]
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  8. #8
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    Default Re: Help sourcing IR LEDs

    Quote Originally Posted by LabRat View Post
    I thought he we looking for Piranha style, which are the 4 pin square devices. (I opted to create a small daughter card that contains 15 standard 5mm leds, and uses a resistor for the constant current source. So far so good). I can post gerbers if anyone else wants to try.
    How hard would your solution be to perfboard? I might go this route since it's probably too late for me to get a PCB made.
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  9. #9
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    Default Re: Help sourcing IR LEDs

    Easy Peasy... the schematic is no different than the MightyMini LED flood. Several (three) leds in series with a resistor. Put a few of those in parallel, and toss in a MOSFET to trigger/control the mess.
    Standard Disclaimers apply:
    "Product may not appear as shown, your mileage may vary, I'm not a doctor nor do I play one on television, these are not the droids you seek"

  10. #10
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    Default Re: Help sourcing IR LEDs

    Quote Originally Posted by LabRat View Post
    Easy Peasy... the schematic is no different than the MightyMini LED flood. Several (three) leds in series with a resistor. Put a few of those in parallel, and toss in a MOSFET to trigger/control the mess.
    Recommendation on a .1" spaced MOSFET that would go on perfboard easily and work well for this?
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