LFXTAL033158

Overview

The LFXTAL033158 is a quartz crystal resonator from the HC49/4HSMX series manufactured by IQD Frequency Products. It operates at a nominal frequency of 3.6864 MHz with a frequency tolerance of ±30 ppm and stability of ±50 ppm. The device features a load capacitance of 18 pF and an equivalent series resistance (ESR) of 300 Ohms. It utilizes a standard two-lead HC49 package designed for through-hole mounting.

Feature Summary

• Hermetically sealed construction using resistance-welded glass-to-metal seals within an inert atmosphere
• Industry-standard HC49 leaded package configuration suitable for through-hole PCB integration
• Quartz crystal type providing stable oscillation for timing applications

Applications

• General purpose electronic timing circuits
• Microcontroller clock sources
• Industrial control systems requiring standard frequency references

Procurement Notes

Verify the specific packaging variant required, as the part number may appear with suffixes such as Bulk or Reel in distributor catalogs. Confirm that the HC49 form factor aligns with the target printed circuit board layout and assembly process capabilities. Ensure the 18 pF load capacitance matches the oscillator circuit design specifications to maintain accurate frequency performance.

Selection Notes

Select this component when a standard through-hole quartz crystal is required for 3.6864 MHz applications. The HC49 package offers robust mechanical stability compared to surface mount alternatives. Consider the 300 Ohm ESR value when designing the oscillator circuit to ensure reliable startup and sustained operation under specified temperature conditions.

Part Context

This component belongs to the HC49/4HSMX series produced by IQD Frequency Products, a subsidiary of Wurth Elektronik. The series represents industry-standard leaded crystals known for reliability and consistent performance across various commercial and industrial environments. IQD provides these components to support global electronics manufacturing supply chains.

Replacement Considerations

Direct substitutes include other manufacturers' HC49 packages rated for 3.6864 MHz with similar electrical parameters. Verify pin compatibility and physical dimensions before substitution. Cross-reference datasheets to confirm matching load capacitance and ESR values to prevent circuit instability.