LFXTAL066431

Overview

The LFXTAL066431 is a quartz crystal resonator manufactured by IQD Frequency Products, designed for surface-mount applications. It operates at a fundamental frequency of 32.768 kHz, utilizing a tuning fork configuration typical for real-time clock circuits. The component features a load capacitance of 7 pF and a frequency tolerance of ±20 ppm. Its equivalent series resistance is specified at 90 kOhms. The device is housed in a compact 2-SMD, No Lead package with dimensions of 1.6 x 1.0 x 0.5 mm, ensuring compatibility with automated assembly processes.

Feature Summary

• Tuning fork design optimized for low-power timekeeping applications
• Surface-mount construction for automated PCB assembly
• Standard 32.768 kHz frequency output for clock generation

Applications

• Real-time clock (RTC) circuits in consumer electronics
• Microcontroller system clock sources
• Wearable devices requiring low power consumption

Procurement Notes

Verify the specific ordering suffix to ensure the correct packaging format matches production requirements. Confirm that the load capacitance specification aligns with the host circuit's oscillator design parameters. Check for any RoHS or REACH compliance documentation if required by regional regulations. Ensure the operating temperature range meets the environmental conditions of the final application.

Selection Notes

Select this component when a standard 32.768 kHz reference is required for timekeeping functions. The 7 pF load capacitance must match the external capacitors used in the oscillator circuit to maintain accuracy. Consider the ±20 ppm tolerance for general-purpose applications where high precision is not critical. The small footprint suits space-constrained designs.

Part Context

This part belongs to the LFXTAL series of quartz crystals from IQD Frequency Products. The series offers various frequencies and packages for different electronic needs. As a tuning fork crystal, it is distinct from higher-frequency parallel resonance types. It serves as a foundational timing element in digital systems requiring precise second-level counting.

Replacement Considerations

Direct substitutes must match the 32.768 kHz frequency, 7 pF load capacitance, and 2-SMD package dimensions. Verify equivalent electrical characteristics such as ESR and tolerance. Cross-reference with other manufacturers' tuning fork crystals offering similar form factors and performance specifications.