LFXTAL026902

Overview

The LFXTAL026902 is a surface-mount quartz crystal resonator manufactured by IQD Frequency Products. It operates at a fundamental frequency of 8.192 MHz with a load capacitance of 16 pF. The component exhibits a frequency tolerance of ±20 ppm and a stability of ±50 ppm across the operating temperature range of -10°C to +60°C. Key electrical parameters include an equivalent series resistance (ESR) maximum of 40 Ohms and a drive level limit of 500 µW. The device utilizes the HC-49/4HSMX package, measuring 11.4 mm in length, 4.9 mm in width, and up to 3.1 mm in height.

Feature Summary

• Provides precise timing signals via fundamental mode oscillation suitable for microcontroller clock sources.
• Features hermetic sealing with glass-metal bonded pins to ensure environmental reliability.
• Compatible with standard SMT reflow soldering processes for automated assembly.

Applications

• Microcontroller system clock generation
• UART and RS-485 communication interfaces
• Industrial gateway control circuits

Procurement Notes

Verify the specific ordering suffix to confirm packaging format, as variants exist for bulk or tape-and-reel supply. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design reviews account for the specified maximum package height to prevent mechanical interference during enclosure assembly. Cross-reference datasheet revisions to maintain consistency with current manufacturing standards.

Selection Notes

Select this component when a stable 8.192 MHz reference is required for digital logic division. The ±20 ppm tolerance supports accurate baud rate generation without significant error accumulation. Verify that the host circuit can provide the necessary drive level within the 500 µW limit to prevent frequency pulling or damage. Assess thermal requirements against the -10°C to +60°C operational window.

Part Context

This part belongs to the HC49/4HSMX series of surface-mount crystals from IQD Frequency Products. The series is designed for general-purpose timing applications requiring robust performance in industrial environments. IQD Frequency Products is a subsidiary of Wurth Elektronik, specializing in frequency control solutions.

Replacement Considerations

Direct substitutes must match the 8.192 MHz frequency, 16 pF load capacitance, HC-49/US footprint, and similar ESR specifications. Verify pin compatibility and thermal characteristics before substitution.