LFXTAL036274

Overview

LFXTAL036274 is an 8 MHz fundamental mode quartz crystal manufactured by IQD Frequency Products. It features a surface-mount HC49/4HSMX package with dimensions of 13.40mm x 4.90mm x 4.30mm. The component operates within a temperature range of -20°C to +70°C and supports a load capacitance of 18pF. Key electrical specifications include a frequency tolerance of ±20ppm, frequency stability of ±50ppm, and an equivalent series resistance (ESR) of 40 Ohms.

Feature Summary

• Fundamental resonance mode operation for precise timing applications
• Surface-mount compatible HC49/4HSMX package design
• Hermetically sealed construction ensuring environmental durability

Applications

• General-purpose clock signal generation in electronic circuits
• Microcontroller system timing references
• Communication device oscillator stages

Procurement Notes

Verify the specific packaging variant required for production, as this part number is available in cut tape, reel, or Digi-Reel formats. Confirm that the HC49/4HSMX footprint matches the target PCB layout. Ensure the operating temperature range of -20°C to +70°C aligns with the final product environment before procurement.

Selection Notes

Select this component when a surface-mount solution is preferred over through-hole variants like the standard HC49/US. The 18pF load capacitance requirement must match the circuit design. Consider the ±20ppm initial tolerance if tighter frequency accuracy is needed for the application.

Part Context

This crystal belongs to the HC49/4HSMX series, representing a compact surface-mount alternative to traditional axial leaded crystals. It provides similar electrical characteristics to larger packages while enabling automated assembly processes and reduced board space consumption.

Replacement Considerations

Cross-reference with other 8MHz SMD crystals from IQD or competitors having identical 18pF load capacitance and 40 Ohm ESR. Verify mechanical compatibility with the HC49/4HSMX footprint before substitution.