Model 416 Surface Mount Quartz Crystal CTS Model 416 Surface Mount Quartz Crystals are low-cost devices used in a wide range of products such as wearable and handheld electronics, notebooks, and computer peripherals. They feature a standard 1.6x1.2mm seam weld package, fundamental crystal design, and a frequency range of 24-80Mhz with an operating temperature range of -40ºC to 85ºC.