MU01612-32.768K

Overview

The NDK MU01612-32.768K is a surface-mount tuning fork crystal designed for precise timekeeping applications. It operates at a fundamental frequency of 32.768 kHz with a standard load capacitance of 12.5 pF. The component exhibits a maximum equivalent series resistance (ESR) of 60 kOhms and maintains a frequency tolerance of ±20 ppm. Housed in a compact 2-SMD, no-lead package, this device provides a stable oscillation source suitable for integration into space-constrained electronic circuits requiring accurate clock signals.

Feature Summary

• Integrates a quartz crystal unit optimized for low-frequency timing stability
• Utilizes a lead-free surface-mount package for automated assembly compatibility
• Designed to meet specific load capacitance requirements for standard oscillator circuits

Applications

• Real-time clock modules in consumer electronics
• Timekeeping circuits in portable devices
• Embedded systems requiring precise frequency references

Procurement Notes

Verify the exact load capacitance and ESR specifications against the target circuit design before procurement. Confirm that the supplier provides official datasheets matching the MU01612-32.768K designation to ensure compliance with the required ±20 ppm tolerance and 12.5 pF load parameters. Cross-reference package dimensions to guarantee fit within the designated PCB footprint.

Selection Notes

Select this component when a 32.768 kHz reference is required for digital counting or timebase generation. Ensure the application environment does not exceed the specified operating temperature range. Compare the 60 kOhm ESR limit against the oscillator circuit's drive level constraints to prevent overdriving the crystal. Verify that the 12.5 pF load capacitance aligns with the host microcontroller or oscillator IC specifications.

Part Context

This part belongs to NDK's lineup of SMD crystals, which are engineered for high reliability in various electronic equipment. NDK manufactures quartz components for mobile communications, office automation, and automotive electronics. The MU series represents their surface-mount offerings designed to minimize circuit board space while maintaining the accuracy essential for networked and embedded systems.

Replacement Considerations

Direct substitutes must match the 32.768 kHz frequency, 12.5 pF load capacitance, and 2-SMD package form factor. Verify that alternative parts offer comparable ESR limits and frequency stability tolerances. Check for pinout compatibility and thermal characteristics if replacing in existing designs.