HC49US-FF3F18-18.432 MHZ

Crystals Overview

The ILSI HC49US-FF3F18-18.432 MHZ is a fundamental mode quartz crystal resonator designed for surface-mount applications within the HC-49/US package form factor. It operates at a nominal frequency of 18.432 MHz with a frequency tolerance and stability of ±30 ppm. The component features an equivalent series resistance (ESR) of 30 Ohms and requires a load capacitance of 18 pF. It supports operation across a temperature range of -20°C to +70°C, ensuring reliable performance in standard commercial environments.

Crystals Feature Summary

• Fundamental oscillation mode for stable frequency generation
• Standard HC-49/US surface-mount package configuration
• Compliant with RoHS environmental standards

Crystals Applications

• Microcontroller clock sources
• Communication interface timing circuits
• General-purpose digital logic synchronization

Crystals Procurement Notes

Verify that the specific suffix FF3F18 matches the required ESR, load capacitance, and tolerance specifications for your circuit design. Confirm the operating temperature range of -20°C to +70°C aligns with your application environment. Ensure the HC-49/US footprint is compatible with your PCB layout constraints before finalizing procurement orders.

Crystals Selection Notes

Select this component when a fundamental mode crystal with 18.432 MHz frequency is required for space-constrained surface-mount designs. The HC-49/US package offers a balance between electrical performance and mounting ease. Consider the ±30 ppm tolerance and 30 Ohm ESR limits to ensure oscillator circuit stability and proper startup conditions are met.

Crystals Part Context

This part belongs to the HC49US series of quartz crystals manufactured by ILSI America. The series provides various frequency options in a standardized surface-mount package. These components are widely used in consumer electronics and industrial equipment requiring precise timing references. The manufacturer focuses on providing cost-effective frequency control solutions for global markets.

Crystals Replacement Considerations

Substitute parts must match the 18.432 MHz frequency, HC-49/US package dimensions, 18 pF load capacitance, and ±30 ppm tolerance. Verify that alternative suppliers offer comparable ESR values and temperature stability ranges to maintain circuit performance without redesign.