This site uses cookies to deliver our services and provide a basic level of website functionality. The four different types of cookies are: Strictly Necessary cookies, Functionality cookies, Performance cookies and Advertising cookies. By checking the box and clicking the button below, you are informing Rapid Electronics Ltd that you agree to the use of these cookies as detailed in our Privacy Policy.

Industry Schools FE/HE Site: Industry Site: Schools Site: FE/HE Site: Mobile

AEL Crystals HC-49/U Quartz Crystal Resonators Through Hole

<p>A range of crystal resonators with a HC-49/U holder style that are suitable for a wide range of frequency control applications and are ideal for legacy designs.</p>
  • Through hole mounting
  • AT-Cut and fundamental mode
  • Excellent ageing characteristics
Operating temperature range–20°C to +70°C
Drive level100µW typ.
Shunt capacitance7pF typ.
Dynamic capacitance20fF typ.

OrderFrequencyToleranceFrequencyLoadESR max.
code(MHz)(ppm)stability (ppm)capacity (pF)(Ω)
*Question functionality currently disabled

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.