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Description: Resonators function like crystals, but are a lower cost solution that does not require external caps.
These resonators are +/-0.5% or better from -20C-+80C. These resonators have built-in load capacitors so no external caps are needed.


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Customer Comments

  • I tried this and it worked fine with my breadboard arduino. However, I looked up the datasheet from what is printed on the resonator package and it said it is 30pF capacitance but the ATmega328p datasheet says it needs capacitors of 12-22pF. Is this ok or am I missing something?

    • This is a good point. Maybe when used on a breadboard, due to high contact capacitance it would work but what if you solder it to a board?

  • i would recommend this product to everyone !!!
    it’s basically a 16MHz crystal with built in capacitors.
    i use this with my atmega328 and it works great!

    • It is like that but has much less tolerance

      • i don’t think tolerance is a issue.

        • Uhhhh… yes, it is. If you are doing anything time-sensitive, like generating sound, the speed that the code runs at will drift. And the pitch of your sound will go up and down. If you have perfect pitch like me, that can be annoying. BUT if you use a crystal, then the drift will be near zero.

          • yepp. pertty much it. and if you want like super accurate serial, if you need it. or tother prototcols

  • Would a resonator like this work as the timing element in a boost converter ( I’ve mostly found pictures online of people using 555 timer circuits, but according to Adafruit’s calculator (, the higher frequency, not to mention slimmer profile, of something like this would seem to make the converter more efficient.

    EDIT: To be clear, I need a converter with a very high step-up ratio for charging big capacitors.

  • If they’re “lower cost”, why are they the same price as the Xtals? or does “lower cost” mean lower overall cost because you don’t need to buy the caps?

    • That’s exactly the point. Also i have found more expensive crystals on the market but these seem relatively cheaper. Maybe your just getting a nice deal on crystals at sparkfun.

  • The datasheet doesnt seem to have a pinout. How would I connect this?

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