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

Products
Technical Details
Questions (1)

Operating temperature range	–20°C to +70°C
Drive level	100µW typ.
Shunt capacitance	7pF typ.
Dynamic capacitance	20fF typ.
Ageing	5ppm

Order	Frequency	Tolerance	Frequency	Load	ESR max.
code	(MHz)	(ppm)	stability (ppm)	capacity (pF)	(Ω)
90-3737	2.457600	50	50	30	650
90-3607	3.276800	30	30	16	150
90-3610	4.000000	30	30	32	100
90-3613	4.915200	30	30	32	70
90-3627	14.745600	30	30	S	30
90-3628	16.000000	30	30	32	20
90-3633	20.000000	30	30	30	Std
90-3636	27.000000	30	50	30	Std

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09 September 2015 Question by: Rapid Customer | 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.