E1SHA18-7.3728M TR

Crystals Overview

The E1SHA18-7.3728M TR is a parallel resonant crystal oscillator manufactured by Ecliptek / Abracon. It operates at a fundamental frequency of 7.3728 MHz with a frequency tolerance of ±15 ppm. The component features an 18 pF load capacitance and a maximum equivalent series resistance (ESR) of 120 Ohms. It is designed for operation within a temperature range of -20°C to +70°C. The device utilizes the HC-49/US package style, providing a standard form factor for through-hole mounting applications.

Crystals Feature Summary

• Parallel resonant crystal design
• Standard HC-49/US package configuration
• Fundamental frequency operation mode

Crystals Applications

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

Crystals Procurement Notes

Verify the specific manufacturer designation on the component marking against official Ecliptek or Abracon documentation. Confirm that the HC-49/US package dimensions align with the target PCB footprint requirements. Ensure the operating temperature range of -20°C to +70°C meets the environmental specifications of the final assembly. Cross-reference the load capacitance value with the host circuit design parameters.

Crystals Selection Notes

Select this component when a fundamental frequency crystal with ±15 ppm stability is required for non-industrial environments. The HC-49/US package offers robust mechanical handling compared to surface-mount alternatives. Consider the 120 Ohm ESR limit when designing the oscillator circuit to ensure reliable startup. This part is suitable for cost-sensitive designs where leaded packaging is preferred over miniaturized options.

Crystals Part Context

This model belongs to the Ecliptek line of programmable and fixed-frequency crystal devices. The brand focuses on quick-turn solutions for timekeeping components. The E1SHA series specifically denotes crystals with standard package styles and moderate stability requirements. These components serve as foundational timing elements in consumer electronics and industrial control systems.

Crystals Replacement Considerations

Direct substitutes must match the 7.3728 MHz frequency, 18 pF load capacitance, and HC-49/US package. Verify that alternative sources maintain the ±15 ppm tolerance and 120 Ohm ESR specifications. Ensure the replacement component supports the same operating temperature range of -20°C to +70°C.