HC49US-FF3F18-3.6864MHZ

Crystals Overview

The ILSI HC49US-FF3F18-3.6864MHZ is a fundamental mode quartz crystal resonator designed for surface mount applications. It operates at a nominal frequency of 3.6864 MHz with a frequency tolerance and stability of ±30 ppm. The component features an 18 pF load capacitance and is housed in the standard HC-49/US package, measuring approximately 11.4 mm in length and 4.7 mm in width. It supports a temperature range of -20°C to +70°C and utilizes an AT-cut quartz element.

Crystals Feature Summary

• Utilizes AT-cut quartz technology for stable oscillation characteristics
• Designed for surface mount installation within the HC-49/US form factor
• Provides consistent frequency stability across specified operating temperatures

Crystals Applications

• General purpose clock generation circuits
• Microcontroller system timing references
• Communication interface synchronization

Crystals Procurement Notes

Verify that the specific suffix FF3F18 corresponds to the required load capacitance and tolerance specifications for your circuit design. Confirm the operating temperature range meets environmental requirements. Ensure surface mount soldering profiles are compatible with the HC-49/US package construction. Cross-reference the manufacturer datasheet for precise electrical limits before integration.

Crystals Selection Notes

Select this component when a 3.6864 MHz reference is required for surface mount designs. The HC-49/US package offers mechanical robustness compared to smaller SMD crystals. Consider the ±30 ppm tolerance against system jitter requirements. Verify compatibility with oscillator circuit impedance matching networks using the 18 pF load specification.

Crystals Part Context

This part belongs to the ILSI HC49US series of fundamental quartz crystals. The series provides various frequency options within the standard HC-49/US footprint. These components are widely used in consumer electronics and industrial equipment requiring reliable timekeeping or data transmission clocks.

Crystals Replacement Considerations

Direct substitutes must match the 3.6864 MHz frequency, 18 pF load capacitance, and HC-49/US package dimensions. Verify equivalent frequency stability and temperature range specifications from alternative manufacturers.