LFXTAL081781

Overview

The LFXTAL081781 is a quartz crystal resonator from the IQXC-42 series manufactured by IQD Frequency Products. It operates at a nominal frequency of 16 MHz with a tight frequency tolerance of ±10 ppm and a load capacitance of 8 pF. The component utilizes a fundamental mode of oscillation and features an equivalent series resistance (ESR) of 200 Ohms. Designed for surface mount applications, it is housed in a compact 4-SMD, No Lead package measuring 5.0 mm in length, 3.2 mm in width, and 1.0 mm in maximum height.

Feature Summary

• High frequency stability with ±10 ppm tolerance suitable for precision timing circuits
• Compact 4-SMD No Lead footprint optimized for automated surface mount assembly
• Fundamental mode operation ensuring efficient energy conversion at 16 MHz

Applications

• Microcontroller clock generation systems
• Communication interface timing references
• Precision measurement instrumentation

Procurement Notes

Verify the specific ordering suffix and packaging configuration against the manufacturer's current datasheet to ensure compatibility with required reel or bulk quantities. Confirm that the RoHS compliance status meets project regulatory requirements. Cross-reference the part number with official distributor catalogs to validate current availability and lead times before finalizing procurement plans.

Selection Notes

Select this component when a 16 MHz reference with high accuracy is required in a small form factor. The 8 pF load capacitance must match the oscillator circuit design parameters. Ensure the PCB land pattern corresponds to the 5.0 x 3.2 mm dimensions. Consider the 200 Ohm ESR value for drive level sensitivity calculations to prevent overdriving the crystal during operation.

Part Context

This part belongs to the IQXC-42 series of quartz crystals, representing IQD Frequency Products' standard surface mount offerings. It serves as a foundational timing element within broader frequency control portfolios that include oscillators and temperature-compensated variants. The series supports various industrial and commercial applications requiring reliable frequency generation.

Replacement Considerations

Direct substitutes must maintain identical 16 MHz frequency, 8 pF load capacitance, and ±10 ppm tolerance. Verify mechanical compatibility with the 4-SMD No Lead package dimensions. Evaluate electrical equivalence regarding ESR and drive level specifications to ensure seamless integration into existing oscillator circuits without redesign.