MC-30632.7680KF-A:ROHS is a 32.768 kHz crystal unit designed for clock and microcomputer timing applications. It operates over a temperature range of -40°C to +85°C with a storage temperature range of -55°C to +125°C, and features a fundamental overtone order with a maximum drive level of 1.0 µW. The unit exhibits a frequency tolerance of ±20 × 10?4 (±50 × 10?6 at +25°C with 0.1 µW drive), a parabolic coefficient of -0.04 × 10?6 / °C maximum, and frequency aging of ±3 × 10?6 / year maximum. With a motional resistance (ESR) of 50 kO maximum, motional capacitance of 1.8 fF typical, and shunt capacitance of 0.9 pF typical, this crystal unit is ideal for precision timekeeping in consumer electronics, embedded systems, and industrial microcontroller applications.