LFXTAL069400

Overview

The LFXTAL069400 is a quartz crystal resonator manufactured by IQD Frequency Products. It operates at a nominal frequency of 18.432 MHz with a load capacitance of 18 pF. The component features a frequency tolerance and stability of ±20 ppm. It utilizes a 4-SMD, No Lead package with dimensions of 2.5 mm x 2.0 mm. The equivalent series resistance (ESR) is specified as 150 Ohms. The device is designed for surface mount technology applications.

Feature Summary

• Provides precise timing reference at 18.432 MHz
• Compact 4-SMD no-lead footprint for space-constrained designs
• Ensures frequency stability within ±20 ppm tolerance

Applications

• Serial communication interfaces requiring standard baud rates
• Microcontroller clock sources
• Digital logic timing circuits

Procurement Notes

Verify the specific package variant and manufacturing date code against the latest official datasheet before procurement. Confirm that the 4-SMD no-lead form factor matches the target PCB land pattern. Ensure supply chain channels provide genuine IQD Frequency Products components to guarantee electrical parameters and reliability standards are met.

Selection Notes

Select this component when a 18.432 MHz fundamental mode crystal is required for digital systems. The 18 pF load capacitance must match the oscillator circuit design. Consider the 150 Ohm ESR limit for driver strength compatibility. The compact SMD package is suitable for high-density board layouts where traditional through-hole crystals cannot fit.

Part Context

This part belongs to the general quartz crystal product line from IQD Frequency Products. It serves as a passive frequency-determining element in electronic circuits. Unlike oscillators, it requires an external active circuit to generate a square wave signal. It is distinct from temperature-compensated or voltage-controlled variants.

Replacement Considerations

Direct substitutes must match the 18.432 MHz frequency, 18 pF load capacitance, and 4-SMD no-lead package dimensions. Verify ESR and drive level specifications to ensure circuit compatibility. Cross-reference with other manufacturers offering identical pinout and electrical characteristics.