ECS CSM-4AX SMD Crystals feature a low profile of 5mm, 30MHz maximum frequency rating, and ±30ppm frequency tolerance. These crystals come in a resistance-weld metal package with an industry-standard footprint. The series offers a 30Ω to 200Ω ESR range, 7pF shunt capacitance, and 500µW drive level. ECS CSM-4AX SMD Crystals have an operating temperature range of -10°C to +70°C.