Epson's FC-12M series 32.768 kHz crystals are ultra-compact SMD tuning fork crystals that will contribute to the further miniaturization of mobile products and demand for yet smaller electronic devices. The FC-12M incorporates QMEMS and high-precision mounting technologies to achieve its ultra-compact 2.0 mm x 1.2 mm x 0.6 mm maximum dimensions. The footprint of this crystal is about half the size of that of its predecessor with the same performance. The FC-12M contributes to the further enhancement of mobile products through higher-density integration, improved design flexibility, a smaller size, and more advanced functionality. This product is stocked in both ±20 and ±30 ppm frequency tolerances.