MU01092-32.768K

Overview

The MU01092-32.768K is a surface-mount crystal oscillator manufactured by NDK (NIHON DEMPA KOGYO CO., LTD). It operates at a fundamental frequency of 32.768 kHz with a frequency tolerance of ±20 ppm. The component features a load capacitance of 9 pF and an equivalent series resistance (ESR) of 90 kOhms maximum. It is housed in a 2-SMD, no-lead package designed for automated assembly processes.

Feature Summary

• Surface-mount design compatible with standard reflow soldering profiles
• Fundamental mode operation for precise timekeeping applications
• Low power consumption characteristics suitable for battery-operated devices

Applications

• Real-time clock circuits in consumer electronics
• Microcontroller system timing references
• Portable communication devices requiring low-power oscillation

Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required load capacitance and tolerance specifications. Confirm that the 2-SMD no-lead package dimensions align with the target PCB footprint. Check manufacturer datasheets for recommended soldering temperature profiles to prevent thermal damage during assembly. Ensure supply chain sources provide genuine components with traceable documentation.

Selection Notes

Select this component when a 32.768 kHz reference is required with ±20 ppm stability. Consider the 9 pF load capacitance requirement for circuit matching. Evaluate the 90 kOhm ESR limit against the oscillator circuit's drive level constraints. Compare physical dimensions against available board space in compact designs.

Part Context

This part belongs to NDK's line of thin-film bulk acoustic resonator (FBAR) or similar advanced crystal technologies, often used in compact timing solutions. It serves as a direct replacement for legacy through-hole crystals in modern miniaturized electronic assemblies where space efficiency is critical.

Replacement Considerations

Direct substitutes include other 32.768 kHz SMD crystals with identical 9 pF load capacitance and comparable ESR values. Verify package outline drawings match exactly to avoid mechanical interference. Cross-reference frequency stability requirements to ensure ±20 ppm meets application needs.