E1SEA18-12.000M TR

Crystals Overview

The E1SEA18-12.000M TR is a surface-mount quartz crystal resonator manufactured by Ecliptek, designed for precision timing applications. It operates at a nominal frequency of 12.000 MHz using AT-cut fundamental mode technology. The component features a load capacitance of 18pF and offers a frequency tolerance of ±30ppm at 25°C. It utilizes an HC49/UP package with a compact height of 3.2mm, making it suitable for space-constrained designs. The device supports parallel resonance operation with a maximum shunt capacitance of 7pF and an equivalent series resistance (ESR) of 70 Ohms maximum. It is rated for a drive level of 1mWatt and complies with RoHS standards.

Crystals Feature Summary

• Surface-mount construction in a compact HC49/UP package with 3.2mm height
• AT-cut fundamental mode operation for stable frequency generation
• Compliance with RoHS directives for lead-free manufacturing

Crystals Applications

• Microcontroller clock circuits
• Communication module timing references
• Consumer electronics control boards

Crystals Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging when placing orders. Confirm that the 18pF load capacitance matches your circuit design requirements to ensure accurate frequency performance. Check for any recent discontinuation notices from the manufacturer, as availability may vary. Ensure storage conditions remain within the specified range to maintain component integrity prior to assembly.

Crystals Selection Notes

Select this component when a standard 12MHz reference is required in a surface-mount format. The 18pF load capacitance is critical for matching oscillator circuit parameters. Consider the ±30ppm tolerance limit against your system's frequency stability needs. The HC49/UP form factor allows for easy integration into existing footprints while saving board space compared to through-hole alternatives.

Crystals Part Context

This part belongs to the Ecliptek E1S series of quartz crystal resonators. The series is characterized by its use of AT-cut crystals for high stability and reliability. The E1SEA18 variant specifically denotes the 18pF load capacitance configuration within this family, distinguishing it from other variants like the 30pF or 20pF options available in the same product line.

Crystals Replacement Considerations

Direct substitutes include the EA3560JA18-12.000M TR from Abracon/Ecliptek, which shares identical electrical specifications and package dimensions. When replacing, verify that the new component maintains the same 18pF load capacitance and HC49/UP footprint to ensure mechanical and electrical compatibility without redesigning the PCB.