LFXTAL026911BULK

Overview

LFXTAL026911BULK is a parallel fundamental quartz crystal manufactured by IQD Frequency Products. It operates at a nominal frequency of 18.432 MHz with a frequency tolerance of ±20 ppm and frequency stability of ±50 ppm. The component features a load capacitance of 16 pF and an equivalent series resistance (ESR) of 50 Ohms. Designed for surface mount installation, it utilizes a HC49SM package configuration. The drive level is specified at 500 µW, ensuring reliable operation within standard electronic circuits requiring precise timing references.

Feature Summary

• Hermetically sealed construction using resistance welding and glass-to-metal seals on leads
• Fundamental parallel resonance mode operation for stable frequency generation
• Surface mount compatible design utilizing the industry-standard HC49SM footprint

Applications

• Digital signal processing controller clocking
• Real-time system timing references
• Motor control application oscillators

Procurement Notes

Verify that the specific part number LFXTAL026911BULK matches the required electrical parameters, particularly the 18.432 MHz frequency and 16 pF load capacitance. Confirm the HC49SM package type aligns with the PCB layout requirements. Ensure the ±20 ppm tolerance meets the system's timing accuracy specifications before finalizing procurement orders.

Selection Notes

Select this component when a surface mount quartz crystal with high reliability and hermetic sealing is required. The HC49SM form factor offers a balance between size and performance suitable for dense circuit boards. Consider the 500 µW drive level to ensure longevity and avoid overdriving the crystal in the target oscillator circuit design.

Part Context

This component belongs to the IQD Frequency Products quartz crystal portfolio, which includes various oscillators and resonators. The LFXTAL series specifically addresses applications demanding precise frequency stability. The BULK suffix indicates the packaging format, distinguishing it from tape-and-reel variants while maintaining identical electrical characteristics.

Replacement Considerations

Direct substitutes must match the 18.432 MHz frequency, 16 pF load capacitance, and HC49SM package dimensions. Verify that alternative manufacturers provide equivalent ±20 ppm tolerance and similar ESR values to ensure circuit compatibility without redesign.