MU01500-32.768K

Overview

The MU01500-32.768K is a surface-mount crystal unit manufactured by NDK (NIHON DEMPA KOGYO CO., LTD). It operates at a nominal frequency of 32.768 kHz with a frequency tolerance of ±20 ppm. The component features a load capacitance of 7 pF and an equivalent series resistance (ESR) of 80 kΩ maximum. It utilizes a two-terminal surface-mount package configuration without leads, designed for automated assembly processes in compact electronic devices requiring precise timekeeping.

Feature Summary

• Surface-mount design for automated placement
• High stability quartz crystal construction
• Compact leadless package format

Applications

• Real-time clock circuits
• Microcontroller system clocks
• Portable consumer electronics

Procurement Notes

Verify the specific load capacitance requirement of 7 pF against the target circuit design to ensure accurate frequency performance. Confirm that the 80 kΩ ESR limit aligns with the oscillator circuit's drive level specifications. Ensure the PCB footprint matches the physical dimensions of the 2-SMD no-lead package to guarantee proper solder joint formation during reflow assembly.

Selection Notes

Select this component when a standard 32.768 kHz reference is required for low-power timekeeping applications. The ±20 ppm tolerance suits general-purpose real-time clock functions where high precision is not critical. Consider the 7 pF load capacitance compatibility with the host oscillator circuit to avoid frequency pulling issues during operation.

Part Context

This part belongs to NDK's portfolio of quartz crystal units, which are essential components for providing stable oscillation frequencies in digital systems. NDK manufactures these devices using synthetic quartz technology to ensure uniform quality and reliability across their product line for various electronic applications.

Replacement Considerations

Direct substitutes include the MU01501-32.768K and MU01499-32.768K from the same manufacturer. These alternatives share the same frequency and package but differ in load capacitance values of 6 pF and 9 pF respectively. Verify circuit compatibility before substitution.