MC-14632.7680KA-A0:ROHS is a 32.768 kHz crystal unit designed for precision timing in small communications devices and portable electronics. This fundamental-mode crystal operates over a temperature range of -40°C to +85°C with a storage temperature range of -55°C to +125°C, ensuring reliable performance across diverse environmental conditions. The unit features a frequency tolerance of ±20 × 10?6 or ±50 × 10?6 at +25°C with a drive level of 0.1 µW, a maximum motional resistance of 65 kO, and selectable load capacitances of 7 pF, 9 pF, or 12.5 pF. With a compact external dimension of 7.0 × 1.5 × 1.4 mm and frequency aging of ±3 × 10?6 per year maximum, this RoHS-compliant crystal is ideal for real-time clock applications, wearable devices, and low-power wireless systems requiring accurate timekeeping with minimal power consumption.