MU01517-32.768K

Overview

The MU01517-32.768K is a surface-mount crystal oscillator manufactured by NDK, designed for precise timing applications. It operates at a nominal frequency of 32.768 kHz with a tolerance of ±20ppm. The device features a load capacitance of 12.5pF and an equivalent series resistance (ESR) of 80 kOhms maximum. Packaged in a compact 2-SMD, No Lead form factor, it utilizes synthetic quartz technology to ensure stable oscillation characteristics suitable for low-power electronic circuits requiring accurate timekeeping.

Feature Summary

• Utilizes synthetic quartz crystals for uniform high-quality mass production
• Provides stable oscillation at standard 32.768 kHz frequency
• Compact 2-SMD no-lead package design for space-constrained applications

Applications

• Real-time clock circuits in portable electronics
• Microcontroller system timing references
• Low-frequency oscillator modules in embedded systems

Procurement Notes

Verify the specific suffix codes against official NDK documentation to confirm exact frequency tolerance and ESR specifications. Ensure compatibility with existing PCB footprint dimensions for the 2-SMD no-lead package. Cross-reference manufacturing dates and RoHS compliance status with current supplier declarations to meet regulatory requirements for modern electronic assemblies.

Selection Notes

Select this component when a stable 32.768 kHz reference is required for timekeeping functions. Consider the ±20ppm tolerance limit against environmental temperature variations in the target application. Evaluate the 12.5pF load capacitance requirement to ensure proper circuit matching without additional external components. Assess the 80 kOhms ESR limit for oscillator circuit stability margins.

Part Context

NDK manufactures this crystal using proprietary synthetic quartz growing technology, ensuring consistent quality across production batches. As part of their broader portfolio of crystalline quartz products, these devices support various industrial and consumer electronics markets. The company's long-standing expertise in quartz processing contributes to the reliability and performance consistency expected in precision timing applications.

FAQ

What is the maximum equivalent series resistance for this crystal?

The maximum equivalent series resistance is specified as 80 kOhms.

Does this component require external load capacitors?

The device is designed for a 12.5pF load capacitance; circuit designers must match this value in the oscillator configuration.