E1SDA12-25.000M TR

Crystals Overview

The E1SDA12-25.000M TR is a quartz crystal resonator from the Ecliptek E1S series, housed in an HC-49/US short surface-mount package with two pads and a maximum height of 3.2mm. It operates at a nominal frequency of 25.000MHz using AT-cut fundamental mode. The component features a load capacitance of 12pF and a maximum equivalent series resistance of 40 Ohms. Frequency tolerance is ±15ppm at 25°C and ±30ppm over the -20°C to +70°C operating range, with aging limited to ±5ppm/year maximum. It supports parallel resonance and is RoHS compliant.

Crystals Feature Summary

• HC-49/US short surface-mount construction for compact PCB integration
• AT-cut fundamental mode operation ensuring stable frequency performance
• Resistance weld seal providing environmental protection
• RoHS compliant lead-free manufacturing

Crystals Applications

• General-purpose clock signal generation in digital circuits
• Microcontroller and microprocessor system timing references
• Communication interface modules requiring 25MHz synchronization
• Consumer electronics internal clock sources

Crystals Procurement Notes

Verify that the ordering suffix 'TR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm the specific package variant matches the HC-49/US short footprint dimensions on the target PCB layout. Ensure the supplier provides valid RoHS compliance documentation consistent with the manufacturer's current standards.

Crystals Selection Notes

Select this component when a small-footprint SMD crystal is needed for 25MHz applications. The HC-49/US short package offers a balance between size and mechanical robustness compared to smaller packages. Consider the ±30ppm stability requirement against the application's clock accuracy needs. Verify that the 12pF load capacitance matches the oscillator circuit design specifications.

Crystals Part Context

This part belongs to the Ecliptek E1S series, which specializes in miniature surface-mount quartz crystals. The series utilizes resistance-welded metal cans to provide reliable hermetic sealing. The E1SDA12-25.000M TR represents a standard 25MHz option within this family, designed for high-volume production environments requiring consistent frequency performance.

Crystals Replacement Considerations

Cross-reference with other HC-49/US short SMD crystals offering 25MHz frequency and 12pF load capacitance. Ensure substitute parts meet or exceed the ±30ppm stability specification over the -20°C to +70°C temperature range. Verify pin compatibility and physical footprint alignment before implementation.