Suntan is a Hong Kong based manufacturer of Quartz Crystal and Crystal Oscillator. Including crystal oscillators and quartz crystals in a variety of package types. Quartz is a piezoelectric material that moves when placed in an electric field. A quartz crystal is a vibrating piece of quartz. Quartz crystals are available in a myriad of shapes and sizes, and can range widely in performance specifications. Please refer to below product list of Quartz Crystal and Crystal Oscillator.