HC49US-FF5F18-18.432 MHZ

Crystals Overview

The ILSI HC49US-FF5F18-18.432 MHZ is a quartz crystal resonator designed for precision timing applications. It operates at a nominal frequency of 18.432 MHz with a frequency tolerance and stability of ±30 ppm. The component utilizes an HC-49/US through-hole package, measuring approximately 13.3mm in length and 4.7mm in width. It features a load capacitance of 18 pF and a maximum series resistance of 150 Ohms. The device is rated for operation within a temperature range of -40°C to +85°C.

Crystals Feature Summary

• Provides stable oscillation at 18.432 MHz with ±30 ppm tolerance
• Utilizes standard HC-49/US through-hole mounting format
• Compatible with 18 pF load capacitance circuits
• Operates reliably across industrial temperature ranges

Crystals Applications

• Microcontroller clock sources
• Serial communication interfaces
• Digital logic timing circuits
• Embedded system oscillators

Crystals Procurement Notes

Verify the specific suffix FF5F18 matches the required load capacitance and pin configuration for your circuit design. Confirm that the HC-49/US package dimensions align with your PCB footprint constraints. Ensure the operating temperature range meets your environmental requirements. Cross-reference the datasheet specifications against your system's electrical parameters before finalizing procurement decisions.

Crystals Selection Notes

Select this component when a precise 18.432 MHz reference is required for digital systems. The HC-49/US package offers robust mechanical stability for through-hole assembly processes. Consider the ±30 ppm tolerance for applications demanding moderate frequency accuracy. Evaluate the 18 pF load capacitance requirement against your oscillator circuit design to ensure proper resonance.

Crystals Part Context

This part belongs to the HC49US series of quartz crystals manufactured by ILSI America. The series provides various frequency options within the same physical package form factor. These components are widely used in consumer electronics and industrial equipment requiring reliable clock signals. The manufacturer specializes in frequency control products supporting global market demands.

Crystals Replacement Considerations

Direct substitutes must match the 18.432 MHz frequency, HC-49/US package, 18 pF load capacitance, and ±30 ppm tolerance. Verify equivalent series resistance limits and temperature stability ratings. Ensure any replacement component maintains compatibility with existing oscillator circuit designs.