E1SCA18-3.6864M TR

Crystals Overview

The E1SCA18-3.6864M TR is a parallel resonant quartz crystal resonator manufactured by Ecliptek. It operates at a nominal frequency of 3.6864 MHz with a load capacitance of 18 pF. The component features a frequency tolerance of ±50 ppm and a stability of ±100 ppm over the operating temperature range of -40°C to +85°C. It utilizes an AT-cut design for fundamental mode operation, ensuring high stability. The device supports a maximum drive level of 1 mW and exhibits a maximum aging rate of ±5 ppm per year. Packaged in surface-mount format on a tape and reel, it is designed for industrial applications requiring precise timing.

Crystals Feature Summary

• AT-cut fundamental mode design for enhanced frequency stability
• Industrial temperature range support from -40°C to +85°C
• RoHS compliant lead-free manufacturing process
• Moisture Sensitivity Level 1 classification for simplified handling

Crystals Applications

• Industrial data acquisition gateways
• Serial communication interfaces (UART)
• Microcontroller clock sources
• Embedded systems requiring precise baud rates

Crystals Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging when ordering. Confirm RoHS compliance documentation is available for regulatory projects. Check current production status as components may be subject to discontinuation notices. Ensure the 18 pF load capacitance matches the target circuit design requirements before procurement.

Crystals Selection Notes

Select this component for designs requiring exact division of 3.6864 MHz for standard baud rates like 115200 or 9600 without error. Consider the ±50 ppm tolerance against system jitter budgets. Verify that the PCB layout accounts for stray capacitance to maintain the effective load near 18 pF. Ensure the driving circuit does not exceed the 1 mW power limit to prevent frequency pulling.

Crystals Part Context

This part belongs to the E1S series of quartz crystals from Ecliptek. It is distinct from MEMS oscillators like the EMRA22X2H series due to its passive resonator nature. The 3.6864 MHz frequency is specifically chosen for digital communication standards. It differs from higher-frequency variants like the 14.7456 MHz model in harmonic content and application scope.

Crystals Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.