LFXTAL015023

Overview

The IQD Frequency Products LFXTAL015023 is a fundamental mode quartz crystal resonator operating at a nominal frequency of 18.432 MHz. It utilizes an HC49/4HSMX surface-mount package with resistance-welded inert gas sealing and glass-to-metal lead seals for environmental protection. The component features a load capacitance (CL) of 30 pF, a parallel equivalent series resistance (ESR) of 40 Ω maximum, and a drive level of 500 μW. Frequency tolerance is ±30 ppm at 25°C, with stability of ±50 ppm over the industrial temperature range of -20°C to +70°C.

Feature Summary

• Hermetically sealed construction using resistance welding in an inert atmosphere with glass-to-metal lead seals
• Industrial-grade reliability with robust mechanical performance against shock and vibration
• Optimized ESR characteristics ensuring stable oscillation across specified temperature ranges

Applications

• Industrial communication systems requiring precise baud rate synchronization
• Microcontroller clock sources demanding long-term frequency stability
• Embedded control units operating within standard industrial temperature environments

Procurement Notes

Verify that the specific order suffix matches the required packaging format, such as bulk or reel configurations, as these affect handling procedures. Confirm compliance requirements including RoHS and REACH status directly from the manufacturer's documentation prior to integration into production lines.

Selection Notes

Select this component when a 18.432 MHz reference is necessary for serial communication interfaces due to its integer relationship with common baud rates. Ensure the circuit design accommodates the 30 pF load capacitance and 40 Ω ESR limits to maintain oscillation stability under varying thermal conditions.

Part Context

This part belongs to the HC49/4HSMX series of surface-mount crystals designed for high-reliability applications. It serves as a direct surface-mount alternative to traditional through-hole HC-49 packages while maintaining similar electrical performance and hermetic sealing standards typical of industrial-grade frequency control components.

Replacement Considerations

Cross-reference with other 18.432 MHz crystals in the HC49/4HSMX footprint. Verify that substitute parts meet identical CL, ESR, and tolerance specifications to ensure circuit compatibility without redesign.