HC49US-FF3F18-18.4320MHZ

Crystals Overview

The HC49US-FF3F18-18.4320MHZ is a quartz crystal resonator manufactured by ILSI America, operating at a fundamental frequency of 18.432 MHz. It features a load capacitance of 18 pF and a frequency tolerance and stability of ±30 ppm. The component utilizes an HC-49/US package designed for through-hole mounting, with physical dimensions of approximately 11.40 mm in length and 4.73 mm in width. The device supports base harmonic operation and is rated for an operating temperature range of -40°C to +85°C.

Crystals Feature Summary

• Provides stable frequency generation at 18.432 MHz with ±30 ppm tolerance
• Designed for surface mount or through-hole integration via HC-49/US casing
• Operates reliably within extended industrial temperature environments

Crystals Applications

• Microcontroller clock circuits requiring precise timing references
• Communication interface modules utilizing standard baud rates
• Industrial control systems needing robust frequency stability

Crystals Procurement Notes

Verify current availability status as this specific part number may be subject to obsolescence notices. Confirm that the HC-49/US package matches your PCB footprint requirements. Ensure the 18 pF load capacitance aligns with your circuit design specifications before procurement.

Crystals Selection Notes

Select this component when a fundamental mode quartz crystal is required for 18.432 MHz applications. The HC-49/US form factor offers mechanical durability suitable for harsh environments. Consider the ±30 ppm stability limit against your system's jitter requirements.

Crystals Part Context

This crystal belongs to the HC49US series from ILSI America, a line of general-purpose quartz resonators. The series is characterized by standardized dimensions and reliable performance across various electronic applications. The FF3F18 suffix typically denotes specific terminal and load capacitance configurations within this family.

Crystals Replacement Considerations

Public records indicate this specific model is obsolete. Verify cross-reference compatibility with other manufacturers offering identical 18.432 MHz, 18 pF, HC-49/US crystals. Ensure substitute parts meet the same ±30 ppm stability and temperature range specifications.