LFXTAL033643

Overview

The LFXTAL033643 is a quartz crystal component manufactured by IQD Frequency Products, belonging to the CFPX-104 series. It operates at a nominal frequency of 14.31818 MHz with a load capacitance of 18 pF and a frequency stability tolerance of ±50 PPM. The device features an equivalent series resistance (ESR) of 70 Ohms and supports a drive level of 100 uW. Designed for surface-mount technology, it utilizes a 4-SMD, No Lead package measuring 5 mm in length, 3.2 mm in width, and 1 mm in height. The operational temperature range spans from -10°C to +60°C.

Feature Summary

• Provides precise timing signals via quartz resonance at 14.31818 MHz
• Utilizes compact surface-mount packaging for automated assembly integration
• Maintains frequency stability within specified tolerance limits across operating temperatures

Applications

• General clock signal generation in electronic circuits
• Timing reference sources for microcontroller systems
• Frequency control applications requiring standard crystal stability

Procurement Notes

Verify the specific suffix designation when sourcing, as IQD Frequency Products has updated part numbering conventions. Confirm that the requested unit matches the current manufacturer specification sheet rather than legacy documentation. Ensure the procurement channel supplies components consistent with the CFPX-104 series characteristics. Cross-reference the Mouser number 449-LFXTAL033643REEL for accurate identification during ordering processes.

Selection Notes

Select this component when a 14.31818 MHz reference is required with ±50 PPM stability. The 18 pF load capacitance must align with the oscillator circuit design parameters. Verify that the -10°C to +60°C temperature range satisfies the environmental requirements of the target application. The 70 Ohm ESR value should be compatible with the driving circuit's impedance matching needs.

Part Context

This component belongs to the IQD Frequency Products CFPX-104 series of quartz crystals. It serves as a fundamental frequency control element within passive timing devices. The product line focuses on providing reliable resonant solutions for consumer and industrial electronics. IQD Frequency Products manufactures these components to meet standard industry specifications for size and performance consistency.

Replacement Considerations

The document notes LFXTAL033643 as an alternate part number for a previous revision. Direct substitution requires verifying identical electrical parameters including frequency, load capacitance, and physical dimensions. Compatibility depends on matching the 4-SMD No Lead footprint and 14.31818 MHz output.