SMX-QM1 SMD tuning fork Crystal Features Applications: telecommunications, audio, medical Low frequency: 32 to 160 kHz Reliable, low cost crystal Reflow soldering @ 260 °C Parameter Specification Nominal frequency Frequency tolerance Frequency stability 32 ~ 160 kHz Aging Load capacitance Series resistance Motional capacitance Shunt capacitance Drive level Turnover temperature Temperature coefficient Operating temperature range Storage temperature range Packaging unit Customer specifications on request ±20 ~ ±100 ppm @ +25 °C ±100 ppm over -20 ~ +70 °C ±150 ppm over -40 ~ +85 °C ±3 ppm 1st year parallel resonance (CL = 8 ~ 12.5 pF) 55 kΩ 2.1 pF 0.9 pF @ 32.768 kHz Typ. Typ. 0.1 μW Typ. +25 °C ±5 °C -0.035 x (T-To)2 ppm/°C2 -20 ~ +70 °C -40 ~ +85 °C -55 ~ +125 °C tape & reel < 0.5 μW commercial application industrial application 2’000 or 3’000 pieces Example for soldering pattern Do not design any conductive path between the pattern Example for IR reflow soldering temperature 2002/95/EC RoHS compliant QuartzCom AG [email protected] www.quartzcom.com QuartzCom Asia [email protected] QuartzCom USA [email protected] 03 May. 10