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Tuning Fork Crystal Is 33% Smaller

Thu, 10/07/2010 - 6:03am
Tuning Fork Crystal Is 33% SmallerFox Electronics, a leading global supplier of frequency control solutions, recently increased its range of watch crystals with a new tuning fork. The FX122 is approximately 33% smaller than previous models, measuring just 2.1 x 1.3 mm with a very low profile of 0.6 mm. The miniature size of the FX122 watch crystal makes it ideal for portable and handheld devices where space is critical.

With a frequency of 32.768 kHz, the surface mount device is optimized for a standard 12.5 pF load capacitance, with an optional load capacitance of 9 pF available. Frequency tolerance is ±20 PPM at 25°C and frequency stability is -0.04 ppm/(change in C°)2 over the standard operating temperature of -40 to 85°C.

Turnover temperature range is 20 to 30°C and storage temperature is -55 to 125°C. Maximum equivalent series resistance of the FX122 crystal is 90 k ohm and insulation resistance is 500 megaohm at 100 VDC. Aging is ±3 PPM per year. The termination finish is gold over nickel.

The watch crystal is RoHS-compliant and comes standard in a 3,000-unit tape and reel for automatic assembly systems.
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