LFXTAL056556

Overview

The LFXTAL056556 is a parallel fundamental quartz crystal manufactured by IQD Frequency Products. It operates at a nominal frequency of 12.5 MHz with a frequency tolerance and stability of ±50 ppm. The component features a load capacitance of 18 pF and an equivalent series resistance (ESR) of 70 ohms. It utilizes a surface-mount package configuration, specifically a 4-SMD, no-lead form factor, designed for automated assembly processes in electronic circuits requiring precise timing references.

Feature Summary

• Surface-mount design compatible with automated pick-and-place manufacturing
• Hermetically sealed quartz resonator element for long-term reliability
• Fundamental mode operation providing stable oscillation at 12.5 MHz

Applications

• Microcontroller clock generation circuits
• Digital communication interface timing
• General-purpose oscillator circuits

Procurement Notes

Verify the specific suffix code against the manufacturer's official datasheet to confirm exact electrical tolerances and packaging variations. Ensure the selected variant matches the required load capacitance and ESR specifications for the target circuit design. Cross-reference the part number with authorized distributors to confirm current availability and authenticity before procurement.

Selection Notes

Select this component when a surface-mount quartz crystal is required for space-constrained designs. The 12.5 MHz frequency suits applications needing standard timing references without integer division. Verify that the PCB footprint matches the 4-SMD no-lead package dimensions. Confirm that the drive level requirements of the host oscillator circuit do not exceed the crystal's maximum rated power dissipation.

Part Context

This part belongs to the IQD Frequency Products LFXTAL series of quartz crystals. The series offers various frequencies and packages, including through-hole and surface-mount options. The LFXTAL056556 specifically addresses the demand for compact, SMT-compatible timing solutions in modern consumer and industrial electronics where board real estate is limited.

Replacement Considerations

Direct replacements must match the 12.5 MHz frequency, 18 pF load capacitance, and 4-SMD no-lead package. Verify ESR compatibility with the oscillator circuit. Check temperature range and aging rate specifications to ensure equal or better performance in the application environment.