LFXTAL061856

Overview

The LFXTAL061856 is a surface-mount quartz crystal manufactured by IQD Frequency Products. It operates at a fundamental frequency of 20 MHz with a load capacitance of 18 pF. The component features a frequency tolerance and stability of ±10 ppm across the industrial temperature range of -40°C to +85°C. It utilizes an HC49/4HSMX package with SMD/SMT termination style. Key electrical parameters include a drive level of 500 uW and an equivalent series resistance (ESR) of 40 Ohms.

Feature Summary

• Hermetically sealed in an inert atmosphere with glass-to-metal seals on leads for reliability
• Resistance welded construction ensures robust mechanical integrity
• Lead wires mounted onto a plastic former to create a gull wing mount configuration

Applications

• Industrial control systems requiring stable clock signals
• Communication equipment operating within standard temperature ranges
• Microcontroller-based embedded designs needing precise timing references

Procurement Notes

Verify the specific ordering suffix to confirm packaging type, as bulk or tape-and-reel options may exist. Ensure the required frequency tolerance of ±10 ppm aligns with system timing requirements. Confirm that the 18 pF load capacitance matches the oscillator circuit design. Check for RoHS compliance details if restricted substances are a concern. Validate the HC49/4HSMX footprint against PCB layout constraints before finalizing procurement.

Selection Notes

Select this component when a 20 MHz reference with high stability (±10 ppm) is required in a compact surface-mount form factor. The HC49/4HSMX package offers a balance between size and performance suitable for space-constrained applications. Consider the 40 Ohm ESR value for oscillator circuit compatibility. This part is appropriate for industrial environments due to its -40°C to +85°C operating range. Evaluate alternative frequencies if the system requires different clock speeds.

Part Context

This crystal belongs to IQD Frequency Products' extensive line of quartz crystals, which includes various SMD and THT options. The manufacturer specializes in frequency control solutions ranging from basic crystals to advanced oscillators. The LFXTAL series represents industry-standard components designed for reliable performance in diverse electronic applications. IQD continues to be a market leader in providing tailored frequency products for global electronics manufacturing.

Replacement Considerations

Direct substitutes must match the 20 MHz frequency, 18 pF load capacitance, ±10 ppm stability, and HC49/4HSMX package. Verify equivalent ESR and drive level specifications to ensure circuit compatibility. Cross-reference with other manufacturers offering similar industrial-grade surface-mount crystals.