The watch crystal sustains a maximum of 90kΩ equivalent series resistance and an insulation resistance of 500MΩ at 100VDC. The SMD crystal operates at a frequency of 32.768kHz. Frequency tolerance is ±20ppm at 25°C with a long term of -0.046ppm per Delta C2. Standard load capacitance is 12.5pF, with optional 7 or 9pF available.
The tuning fork ages only ±3ppm in the first year and features a termination finish of gold over nickel. Overall operating temperature range is from -40 to +85°C with a turnover temperature range of +20 to +30°C and a storage temperature from -55 to +125°C. Maximum soldering is 10 seconds at 260°C.
The ultra-low profile FX161 watch crystal comes in a standard tape and reel containing 3,000 pieces and is RoHS compliant.