SMALLEST SMD Clock Crystal

An external 32.768 kHz clock is an essential part of a lot of systems. Besides driving the real-time clock, the 32.768 kHz clock is widely used by various processor and peripheral subsystems. Without the 32.768 kHz clock, the real-time clock, the watchdog timer, the periodic interrupt, and asynchronous remote bootstrap will not function in many applications.

31SMX(C) is with only 0.9 mm max. height one of the smallest crystal available on the market. The extremely flatten 32.768 kHz quartz with the dimensions of 3.2 x 1,5 mm² is available with tolerances of +-20ppm. The operating temperature range hits a corner itself from -40 to 85°C. Standard load capacitance is as well 12.5 pF. On request we can offer those tuning fork’s as well with 9pF load capacitance. The quartz is reflow solder able and available Taped and Reeled in quantities of 3000pcs.

Further economical SMD of clock quartz (tuning fork) with 32.768 kHz offered SMI by (Representative Endrich GmbH) in differently housings and designs are available. Standard Tolerance is +-10ppm,+-20ppm or +-30ppm). Tolerances down to +-5ppm (at 25°C) is available on request. The standard load capacity is 12,5 pF. In addition we also fulfill on customer's requests different values