MU00797-32.768K

Overview

The MU00797-32.768K is a surface-mount quartz crystal resonator manufactured by NDK (NIHON DEMPA KOGYO CO., LTD). It operates at a fundamental frequency of 32.768 kHz with a load capacitance of 6 pF and an equivalent series resistance of 80 kOhms. The component utilizes a 2-SMD, no-lead package measuring 3.20 mm in length and 1.50 mm in width, with a maximum height of 0.035 inches (0.90 mm). Designed for base mode operation, it supports a temperature range of -40°C to +85°C and meets RoHS compliance standards.

Feature Summary

• Ultra-small 3.2 x 1.5 mm SMD footprint suitable for space-constrained designs
• High stability quartz resonator optimized for low-power applications
• Compliant with RoHS environmental directives

Applications

• Real-time clock circuits in portable electronics
• Wearable device timing references
• IoT sensor node synchronization

Procurement Notes

Verify the specific series designation and tolerance class against the official NDK datasheet prior to procurement. Confirm that the 6 pF load capacitance aligns with the host circuit's oscillator design requirements. Ensure the 80 kOhm ESR specification is compatible with the driving circuit constraints to guarantee reliable startup and sustained oscillation within the specified temperature range.

Selection Notes

Select this component when a compact 32.768 kHz timing source is required for battery-operated systems. The narrow 1.5 mm width facilitates dense PCB layouts in wearables and IoT modules. Consider the 80 kOhm ESR value when designing oscillator feedback networks, as higher resistance may require specific gain margin adjustments compared to lower ESR alternatives.

Part Context

This part belongs to NDK’s portfolio of miniature SMD crystals, leveraging the company’s artificial crystal cultivation technology. NDK specializes in high-frequency stability components for automotive and mobile markets. The MU00797 series represents a specific form factor variant within their broader NX3215SA or similar small-package families, focusing on ultra-low power consumption.

Replacement Considerations

NSC5136A-32K768