ECS-110.5-32-1 is an HC-49U quartz crystal designed for precision timing applications, featuring AT-cut crystal technology with excellent aging characteristics and tight frequency tolerances. The device operates across a frequency range of 1.8 MHz to 100 MHz in fundamental mode, with frequency tolerance of ±30 ppm at +25°C and frequency stability of ±50 ppm over the operating temperature range of -10°C to +70°C. Key electrical parameters include maximum shunt capacitance of 7.0 pF, load capacitance of 10.0 pF (customer specified), and drive levels of 2.0 mW (1.8–3.0 MHz) and 1.0 mW (3.0–100 MHz), with equivalent series resistance varying by frequency band from 750 O at 1.8–1.999 MHz down to 20 O at 16–25 MHz. The crystal exhibits excellent first-year aging of ±5.0 ppm at +25°C and is housed in a compact HC-49U package with dimensions of 11.35 mm maximum length and 4.88 ± 0.020 mm width. This cost-effective component is ideal for consumer electronics, communication systems, and precision instrumentation requiring reliable frequency reference with wide temperature stability.