HC49USM-FF3F18-4.9152MHZ

Crystals Overview

The ILSI HC49USM-FF3F18-4.9152MHZ is a parallel fundamental quartz crystal operating at a nominal frequency of 4.9152 MHz. It utilizes the HC-49/US surface-mount package, measuring approximately 11.40 mm in length and 4.73 mm in width. The component features a load capacitance of 18 pF and maintains a frequency tolerance and stability of ±30 ppm. It exhibits an equivalent series resistance (ESR) of 150 Ohms maximum and operates within a temperature range of -40°C to +85°C.

Crystals Feature Summary

• Surface-mount HC-49/US metal package design for automated assembly compatibility
• Parallel fundamental resonance mode with low cost construction
• RoHS compliant and lead-free processing compatible manufacturing

Crystals Applications

• General purpose clock generation circuits
• Microcontroller oscillator interfaces
• Consumer electronic timing references

Crystals Procurement Notes

Verify the specific suffix FF3F18 against official ILSI documentation to confirm the exact ESR value of 150 Ohms and packaging configuration. Ensure the ordering part number matches the required frequency tolerance and load capacitance specifications for the target circuit design before finalizing procurement orders.

Crystals Selection Notes

Select this component when a standard surface-mount crystal with moderate stability requirements is needed. The 18 pF load capacitance must match the oscillator circuit's external capacitors. Consider the 150 Ohm ESR limit to ensure reliable oscillation startup in the host application design.

Crystals Part Context

This part belongs to the ILSI HC49USM series of parallel fundamental quartz crystals. The series offers various frequencies and packages, providing a standardized solution for timing applications requiring surface-mount technology and compliance with environmental regulations such as RoHS.

Crystals Replacement Considerations

Cross-reference with other HC-49/US format crystals from different manufacturers ensuring identical frequency, load capacitance, and ESR values. Verify that substitute parts meet the same ±30 ppm tolerance and temperature range specifications.