LFXTAL078433BULK

Overview

The LFXTAL078433BULK is a fundamental mode quartz crystal resonator manufactured by IQD Frequency Products. It operates at a nominal frequency of 20.0 MHz with a load capacitance of 20 pF. The component provides a frequency tolerance of ±20 ppm and a stability of ±50 ppm over an operating temperature range of -10°C to +70°C. It utilizes a through-hole HC-49 package with radial termination style, measuring 11.05 mm in length, 4.65 mm in width, and 13.46 mm in height. The device features a maximum equivalent series resistance (ESR) of 100 Ohms and supports a drive level of 1 mW.

Feature Summary

• Hermetically sealed construction using industry-standard leaded packaging with glass-to-metal seals on leads.
• Resistance welded design ensuring reliability within an inert atmosphere environment.
• Fundamental mode operation providing stable timing signals for standard commercial applications.

Applications

• General purpose timing circuits requiring 20 MHz reference frequencies
• Commercial grade electronic equipment utilizing through-hole mounting technologies
• Microcontroller clock sources where moderate stability is sufficient

Procurement Notes

Verify the specific suffix 'Bulk' indicates loose piece packaging rather than tape and reel configuration when reviewing distributor listings. Confirm that the -10°C to +70°C temperature rating aligns with your environmental requirements, as industrial variants may offer wider ranges. Ensure the 20 pF load capacitance matches the oscillator circuit design specifications to maintain accurate frequency performance.

Selection Notes

Select this component when a fundamental mode crystal is required for 20 MHz applications with through-hole assembly constraints. The HC-49 package offers robust mechanical handling compared to surface mount alternatives. Consider the ±50 ppm stability specification against system jitter requirements. This part is suitable for cost-sensitive designs where extended temperature performance is not critical.

Part Context

This part belongs to the LFXTAL series of quartz crystals from IQD Frequency Products, a subsidiary of Würth Elektronik eiSos. The series encompasses various frequencies and packages, ranging from miniature SMD types to traditional leaded units. IQD supplies these components to global markets for consumer, industrial, and automotive timing needs.

Replacement Considerations

Direct substitutes must match the 20.0 MHz frequency, 20 pF load capacitance, HC-49 package dimensions, and -10°C to +70°C operating range. Verify ESR limits and drive level compatibility with the host oscillator circuit before substitution.