The document introduces a quartz crystal unit called C5S-16.384-12-3030-X, which has a size of 5 x 3.2 mm and is an SMD product. The crystal unit has a nominal frequency of 16.3840 MHz and operates in the fundamental mode of oscillation. The frequency tolerance at 25°C is ±30 PPM, and the frequency stability over the temperature range is ±30 PPM. The operating temperature range is -40 to +85º C, and the storage temperature range is -55 to +125º C. The aging per year is ±3 PPM maximum. The load capacitance is 12 pF, and the maximum shunt capacitance is 7. The equivalent series resistance is 50 ohms maximum. The drive level is 100 Typ - 500 Max uW. The solder reflow characteristics are +260º C for 10 seconds. The document also provides the mechanical and electrical specifications of the product, which is RoHS compliant.