A 27.000000MHz crystal resonator with a tolerance of 30ppm in a HC-49/U style holder that is suitable for a wide range of frequency control applications and serves as direct replacement for existing designs.
Through hole mounting
AT-Cut and fundamental mode
Excellent ageing characteristics
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09 September 2015 Question by: s
| Product code: 90-3636
Q. is the product specified as fundamental mode or 3rd overtone.The datasheet says both are available. 3rd ot means operating at 3 times the fundamental frequency, requiring different drive circuitry to run at the specified frequency. using such circuitry with a fundamental mode crystal would result in (approx)81 Mhz.
A. Hi S, thank you for your question. These are the fundamental type crystals.