FC4SDCBMF7.3728-T1 is a resistance weld SMD crystal oscillator designed for precision frequency control applications. This device operates across a frequency range of 3.2 to 80 MHz with a frequency tolerance of ±15 PPM at 25°C and frequency stability of ±15 PPM over the operating temperature range of -55°C to +125°C. The crystal features a shunt capacitance of 7 pF, load capacitance of 20 pF, and a maximum drive level of 0.5 mW (0.1 mW typical), with an aging rate of ±3 PPM per year. It is lead-free, RoHS compliant, and features Sn/Ag/Cu termination finish with MSL rating of 1. This crystal is ideal for telecommunications, consumer electronics, and industrial timing applications requiring stable frequency references over wide temperature ranges.