The ATS200SM-1 is a surface mount quartz crystal designed for precision timing applications requiring stable frequency performance. Operating at a fundamental frequency of 20.0 MHz with series load capacitance, this crystal delivers excellent long-term stability and reliability in a proven resistance-weld metal package with HC-49/US SM low profile form factor. The device features frequency tolerance of ±30 ppm at 25°C and frequency stability of ±50 ppm over the operating temperature range of -20°C to +70°C, with an equivalent series resistance of 30 Ohms maximum. The ATS200SM-1 is ideal for microprocessor, telecommunication, consumer electronic, and networking applications where shock performance and thermal stability are critical, and it is RoHS/Green compliant with tape and reel packaging available.