Said to be highly reliable, the ST3215SB surface-mount crystal resonator provides a nominal frequency of 32.768 kHz in a ceramic package measuring 3.2 mm x 1.5 mm x 0.8 mm. The reflow compatible component has a frequency tolerance of ±20 ppm, maximum ESR of 70 kΩ, and an operating temperature range from -40°C to +85°C. Standard capacitance ranges are 9 pF to 12.5 pF and low capacitance versions, 7 pF or less, are available on request. AVX CORP. Myrtle Beach, SC. (843) 448-9411.