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Miniature LDR

A miniature low cost LDR (non-RoHS) in a miniature epoxy sealed open frame package (4mm dia.). Resistance reduces as light falling on the device increases.

Availability: In Stock.

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This product is also available in the following versions:

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Miniature LDR, single
Miniature LDR, pack of 10

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Product description:

A miniature low cost LDR (non-RoHS) in a miniature epoxy sealed open frame package (4mm dia.).

Cell resistance reduces as light falling on the device increases.

Dark resistance min. 20M Daylight around 5K.


Posted by Abdul, Friday, 13 November 2015 on product Miniature LDR


OK So I want to make a animatronics spider, now to make it move im using a 3v vibrating motor but want to know if I could use the LDR so that when it looses a certain amount of light it can make the bug jitter to a certain direction. also what would I use if I wanted it to follow a white line etc..?


  • Posted by Michael Lockhart on Friday, 13 November 2015

    You wouldn’t be able to alter the direction that the motor would move the spider in, this motor would provide a very uncontrollable movement. We do have a line following kit however you would require the motor driver board and a few other components.

Posted by Whit Baker, Thursday, 31 July 2014 on product Miniature LDR


Hello - I am interested in using a miniature LDR for a public art installation. In my plan, I would blackout all light, give visitors flash lights, and have sound effects play as flashlights scan photographs. Is it feasible to wire a photo frame with your LDR such that ambient sound can be triggered by flashlight lumens? I am not an electrical engineer. From you I guess I want to know if anything in my plan sounds fundamentally flawed before I hire an engineer to design with your product. Thanks!!


  • Posted by Aaron Sturman on Thursday, 31 July 2014
    Entirely possible! Sounds like it would be really cool too. I'd love if you could take some photos or something of the finished installation and send them to us!
Posted by prasad, Tuesday, 10 June 2014 on product Miniature LDR


Dear Sir, Presently in our company we have 45 w LED street lights? can you suggest me which type of ldr is suitable and better? Can we operate the in certain levels of lux these ldr's as per our requirement.? Awaiting for your response. Regards. Prasad.


  • Posted by Aaron Sturman on Tuesday, 10 June 2014
    Either of our LDRs could be used for any reasonable light level. The rest of the circuit is what determines the trigger point or value.
Posted by John Land, Tuesday, 11 December 2012 on product Miniature LDR


Is this the same LDR as supplied with the Moodlight Kit ( dark activated colour changing LED kit )


  • Posted by Geoff Hampson on Tuesday, 11 December 2012
    Yes all out kits use the same LDR which is this one. The only time that we sell a different LDR is when it is in a PICAXE kit.

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