ECS-59-S-1

Crystals Overview

The ECS-59-S-1 is a precision series fundamental mode quartz crystal resonator manufactured by ECS Inc. International. It operates at a nominal frequency of 5.9904 MHz with a frequency tolerance of ±30ppm and stability of ±50ppm. The component features an equivalent series resistance (ESR) of 50 Ohms and utilizes the HC-49/U through-hole package for reliable mounting.

Crystals Feature Summary

• Series fundamental mode operation for stable timing
• HC-49/U through-hole package design
• 50 Ohm equivalent series resistance

Crystals Applications

• General purpose timing circuits
• Microcontroller clock sources
• Communication equipment oscillators

Crystals Procurement Notes

Verify the specific lot code and manufacturing date against project requirements to ensure compliance with material declarations. Confirm that the HC-49/U package dimensions align with the target PCB footprint and that the 50 Ohm ESR matches the oscillator circuit design specifications before finalizing procurement.

Crystals Selection Notes

Select this component when a 5.9904 MHz reference is required with ±30ppm initial accuracy. Ensure the application environment remains within the specified temperature range to maintain the ±50ppm stability rating. Verify that the circuit load capacitance matches the crystal's specification to prevent frequency drift.

Crystals Part Context

This part belongs to the standard series crystal family from ECS, designed for general electronic applications. It provides a cost-effective timing solution compared to higher-grade oscillators while maintaining reliability in consumer and industrial electronics where precise frequency generation is necessary.

Crystals Replacement Considerations

The ECS-60-S-1 is a documented substitute offering a similar form factor but operates at 6.0000 MHz. Verify that the frequency difference does not impact system timing requirements before substitution.