ECS-184-18-5PX-TR

Crystals Overview

The ECS-184-18-5PX-TR is a surface-mount quartz crystal oscillator from the CSM-7X series manufactured by ECS Inc. It operates at a nominal frequency of 18.432 MHz with an equivalent series resistance (ESR) of 40 Ohms. The component supports a load capacitance of 18 pF and offers frequency stability options including ±30 ppm and ±50 ppm variants. Packaged in Tape & Reel format, it utilizes an HC-49/US form factor adapted for SMD mounting, providing a compact solution for precise timing applications.

Crystals Feature Summary

• Surface mount construction for automated assembly
• Quartz resonator technology for stable oscillation
• Standardized HC-49/US footprint compatibility

Crystals Applications

• Microcontroller clock sources
• Communication interface timing
• Digital signal processing circuits

Crystals Procurement Notes

Verify the specific frequency tolerance required for your design, as documentation indicates both ±30 ppm and ±50 ppm specifications for this part number. Confirm that the Tape & Reel packaging aligns with your pick-and-place equipment capabilities. Ensure the 18 pF load capacitance matches your circuit design requirements to maintain accurate frequency performance.

Crystals Selection Notes

Select this component when a standard 18.432 MHz reference is needed in a surface-mount environment. The CSM-7X series provides a balance of cost-effectiveness and reliability for general-purpose timing needs. Consider the ESR value of 40 Ohms when designing the oscillator circuit to ensure proper start-up conditions and sustained oscillation.

Crystals Part Context

This crystal belongs to the CSM-7X series, which represents a line of surface-mount quartz crystals designed for high-volume manufacturing. The series maintains dimensional consistency with traditional through-hole packages like HC-49/US while enabling modern SMD processes. This transition allows designers to retain familiar mechanical footprints while adopting automated assembly techniques.

Crystals Replacement Considerations

Direct substitutes must match the 18.432 MHz frequency, 18 pF load capacitance, and 40 Ohm ESR. Verify that alternative manufacturers offer components in compatible SMD packages with identical pin configurations. Cross-reference frequency stability ratings to ensure compliance with system timing jitter requirements.