LFXTAL078428B

Overview

The LFXTAL078428B is a quartz crystal resonator from the HC49 series, manufactured by IQD Frequency Products. It operates at a fundamental frequency of 8 MHz with a load capacitance of 20 pF and a tolerance of ±50 ppm. The component features an equivalent series resistance (ESR) of 40 Ohms and supports a maximum drive level of 1 mW. Designed for through-hole mounting in the HC-49/US package, it measures 11.05 mm in length, 4.7 mm in width, and 13.49 mm in height. It functions within a temperature range of -20°C to +70°C.

Feature Summary

• Fundamental mode quartz crystal operation
• Through-hole radial leaded construction
• Industrial temperature range stability

Applications

• General purpose timing circuits
• Microcontroller clock sources
• Consumer electronics timing references

Procurement Notes

Verify the specific suffix (e.g., BULK) against the datasheet to ensure correct packaging configuration. Confirm that the HC-49/US package dimensions align with the target PCB footprint. Ensure the 8 MHz frequency and 20 pF load capacitance match the oscillator circuit requirements before finalizing procurement.

Selection Notes

Select this component when a standard through-hole crystal is required for cost-sensitive applications. The HC-49/US form factor provides robust mechanical stability. Consider the ±50 ppm tolerance and -20°C to +70°C operating range to ensure compatibility with the system's environmental and timing precision needs.

Part Context

This part belongs to the HC49 series of quartz crystals offered by IQD Frequency Products. The series includes various frequencies and packages, catering to diverse timing needs. IQD is a recognized supplier in the frequency control sector, providing components for industrial, consumer, and communication markets under the Wurth Group.

Replacement Considerations

Check for direct cross-reference part numbers from other manufacturers offering identical HC-49/US specifications. Verify that any substitute matches the 8 MHz frequency, 20 pF load capacitance, and 40 Ohm ESR to maintain circuit performance.