E1SJA18-13.000M TR

Crystals Overview

The E1SJA18-13.000M TR is a quartz crystal resonator manufactured by Ecliptek, designed for surface mount applications. It operates at a nominal frequency of 13 MHz with an AT-cut fundamental mode. The component features a parallel resonance configuration and an 18 pF load capacitance. Frequency tolerance is specified at ±15 ppm at 25°C and ±30 ppm over the operating temperature range of -40°C to +85°C. Aging stability is rated at 5 ppm per year maximum. The device utilizes a resistance-welded short HC-49/UP SMD package with two pins, measuring 13.3 mm in length, 4.85 mm in width, and 3.2 mm in height.

Crystals Feature Summary

• Surface mount construction using a short HC-49/UP package with resistance-welded metal seal
• AT-cut crystal element ensuring stable parallel fundamental operation
• Compliant with RoHS standards and lead-free manufacturing requirements

Crystals Applications

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

Crystals Procurement Notes

Verify that the specific part number matches the required 13 MHz frequency and 18 pF load capacitance before integration. Confirm compliance with RoHS directives if environmental regulations apply to the final assembly. Ensure the surface mount footprint aligns with the PCB design specifications for the short HC-49/UP package dimensions. Check for any tape and reel packaging requirements during procurement to match automated assembly processes.

Crystals Selection Notes

Select this component when a standard 13 MHz reference is required for surface mount designs. The 18 pF load capacitance must match the oscillator circuit design parameters to ensure accurate frequency output. Consider the ±15 ppm initial tolerance and ±30 ppm total stability over temperature for precision timing applications. The resistance-welded seal provides robustness against environmental factors compared to epoxy-sealed alternatives.

Crystals Part Context

This part belongs to the E1S series of quartz crystal resonators from Ecliptek. The series offers various frequencies within the short HC-49/UP SMD form factor. These components are commonly used in consumer electronics and industrial equipment requiring reliable timing signals. The E1SJA18 variant specifically denotes the 18 pF load capacitance configuration within this product line.

Crystals Replacement Considerations

Direct substitutes include other manufacturers offering 13 MHz crystals in the short HC-49/UP SMD package with 18 pF load capacitance. Verify equivalent electrical parameters such as frequency tolerance, aging rate, and drive level compatibility. Ensure the replacement component meets the same physical dimension constraints for PCB footprint compatibility.