LFXTAL026911

Overview

LFXTAL026911 is a quartz crystal resonator manufactured by IQD Frequency Products, designed for surface-mount applications. It operates at a nominal frequency of 18.432 MHz with a frequency tolerance of ±20ppm and stability of ±50ppm. The component features a load capacitance of 16pF and utilizes the HC49/4HSMX series package configuration. Physical dimensions are approximately 11.4mm in length, 4.9mm in width, and 4.3mm in height. It supports fundamental mode operation and is suitable for standard electronic timing circuits requiring precise clock signals.

Feature Summary

• Surface-mount quartz crystal resonator design
• Fundamental mode operation for stable timing
• HC49/4HSMX series package configuration

Applications

• Microcontroller clock sources
• Communication interface timing
• Digital signal processing systems

Procurement Notes

Verify the specific package variant against official IQD documentation, as listings may reference through-hole HC-49/U styles despite SMD descriptions. Confirm RoHS compliance status and moisture sensitivity levels prior to ordering. Ensure the supplier provides traceable datasheets matching the exact part number suffix to avoid discrepancies in physical footprint or electrical characteristics.

Selection Notes

Select this component when a 18.432 MHz fundamental frequency is required for digital logic synchronization. The 16pF load capacitance must match the oscillator circuit design parameters. Consider the physical size constraints of the PCB layout due to the elongated package profile. Verify thermal operating ranges against the specific application environment requirements before integration.

Part Context

The LFXTAL026911 belongs to the IQD Frequency Products quartz crystal portfolio, specifically within the HC49/4HSMX series. This series represents a transition from traditional through-hole crystals to surface-mount formats while maintaining similar electrical performance profiles. It serves as a critical passive component for generating precise clock signals in modern electronics.

Replacement Considerations

Cross-reference with other 18.432 MHz SMD crystals from IQD or competitors ensuring identical 16pF load capacitance and ±20ppm tolerance. Verify mechanical footprint compatibility if substituting with different manufacturers' offerings.