LFXTAL003279B

Overview

The LFXTAL003279B is a quartz crystal oscillator manufactured by IQD Frequency Products, designed for through-hole mounting in the HC-49/US package. It operates at a fundamental frequency of 9.8304 MHz with a load capacitance of 30 pF. The component exhibits a frequency tolerance of ±30 ppm and a stability of ±50 ppm over the operating temperature range of -10°C to +60°C. Key electrical parameters include an equivalent series resistance (ESR) of 40 Ohms and a drive level of 500 µW. The physical dimensions are approximately 11.05 mm in length, 4.7 mm in width, and 13.46 mm in height, featuring a radial termination style suitable for standard PCB layouts.

Feature Summary

• Provides precise timing signals at 9.8304 MHz for digital circuit synchronization
• Utilizes HC-49/US through-hole packaging for robust mechanical integration
• Maintains frequency stability within specified tolerances across defined thermal ranges

Applications

• Microcontroller clock sources requiring stable base frequencies
• Communication systems utilizing 9.8304 MHz as a carrier or intermediate frequency
• Digital signal processing circuits needing precise timing references
• Industrial control boards requiring reliable oscillation under thermal variation

Procurement Notes

Verify the specific ordering suffix and packaging configuration directly with IQD Frequency Products or authorized distributors before purchase. Confirm that the HC-49/US package variant matches your board layout requirements. Ensure compliance with RoHS directives if applicable to your manufacturing standards. Request updated datasheets to validate current production status and any potential design changes. Cross-reference the part number with official manufacturer catalogs to avoid substitution errors.

Selection Notes

Select this component when a 9.8304 MHz frequency is required for system clocking or modulation purposes. The HC-49/US package is appropriate for applications necessitating through-hole assembly techniques. Consider the ±30 ppm tolerance and 40 Ohm ESR limits to ensure compatibility with the host oscillator circuit's loading requirements. Evaluate the -10°C to +60°C operating range against environmental conditions to guarantee long-term reliability and performance consistency.

Part Context

This quartz crystal belongs to the HC-49/US series from IQD Frequency Products, a widely used form factor for general-purpose timing applications. The 9.8304 MHz frequency is commonly derived from higher base clocks, such as 100 MHz, making it suitable for baud rate generation in serial communication interfaces. The component represents a standard solution for integrating precise timing into embedded systems without requiring complex external filtering networks.

Replacement Considerations

Direct substitutes must match the 9.8304 MHz frequency, 30 pF load capacitance, and HC-49/US package dimensions. Verify that alternative manufacturers offer comparable ESR values near 40 Ohms and similar drive level specifications to prevent frequency pulling or amplitude instability. Ensure that any replacement maintains the same frequency tolerance and stability ratings to preserve system timing integrity.