LFXTAL020131

Overview

The LFXTAL020131 is a fundamental mode quartz crystal resonator from the HC49/4HSMX series by IQD Frequency Products. It operates at a nominal frequency of 20MHz with a frequency tolerance of ±30ppm and stability of ±50ppm across the industrial temperature range. The component features a load capacitance of 18pF and a maximum equivalent series resistance (ESR) of 40 Ohms. It utilizes an SMD package with gull-wing leads, measuring up to 3.1mm in height. This design supports direct integration into microcontroller oscillator circuits without requiring additional active components.

Feature Summary

• Industrial-grade reliability for stable operation under environmental stress
• SMD gull-wing lead configuration for reduced soldering defects
• Fundamental resonance mode for efficient circuit driving

Applications

• Industrial gateway clock generation
• Microcontroller system timing
• Embedded communication interfaces

Procurement Notes

Verify the specific ordering suffix against the official IQD datasheet to ensure the correct packaging format matches project requirements. Confirm that the selected variant aligns with the required frequency tolerance and stability specifications for the target application environment. Cross-reference the manufacturer part number to avoid confusion with similar family members.

Selection Notes

Select this component when a fundamental mode crystal is required for 20MHz applications. Ensure the external load capacitance matches the specified 18pF requirement, accounting for PCB stray capacitance. Verify that the ESR limits are compatible with the host oscillator circuit's drive level constraints before finalizing the design.

Part Context

This component belongs to the HC49/4HSMX series, representing a standard surface-mount form factor derived from traditional through-hole designs. It serves as a bridge between legacy compatibility and modern automated assembly processes, offering robust performance for general-purpose industrial electronics where space constraints are moderate.

Replacement Considerations

Direct substitutes must match the 20MHz frequency, 18pF load capacitance, and HC49/4HSMX footprint. Verify equivalent electrical parameters such as ESR and stability ratings to maintain system timing integrity during replacement.