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AVX Corporation has developed a highly reliable surface mount crystal resonator that provides a nominal frequency of 32.768kHz in a small ceramic package of 3.2mm x1.5mm and a profile of only 0.8mm. Designated ST3215SB, the reflow compatible tuning fork crystal resonator has a frequency tolerance of +/-20ppm, a maximum ESR of 70kΩ and an operating temperature range of -40°C to 85°C.
Suitable for consumer and mobile equipment applications, the ST3215SB resonators are Pb free and RoHS-compliant. Standard capacitance ranges are 9pF to 12.5pF and low capacitance versions, 7pF or less, are available on request.
“Already one of the biggest suppliers of MHz crystal products, AVX/Kyocera merged with a company called Hertz to add unique kHz design capabilities to its own expertise in high-reliability ceramic packaging and competitive price structuring,” said Akira Honda, Product Marketing Manager at AVX. “These new devices offer equivalent performance to similar industry standard devices, but benefit from our ultra-reliable / cost competitive ceramic packaging technology.”
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