ECS-40-20-5P-TR

Crystals Overview

The ECS-40-20-5P-TR is a surface-mount quartz crystal oscillator manufactured by ECS Inc International. It operates at a nominal frequency of 4.000 MHz with a fundamental mode configuration. The component features a load capacitance of 20 pF and a maximum series resistance of 150 Ohms. Frequency tolerance is specified at ±30 ppm, while stability is rated at ±50 ppm over the operating temperature range of -10°C to +70°C. It utilizes an HC-49/US SMD package and is supplied in tape and reel packaging for automated assembly processes.

Crystals Feature Summary

• Surface-mount design compatible with automated pick-and-place manufacturing
• Fundamental mode operation for precise frequency generation
• Low series resistance characteristic supporting efficient circuit drive levels

Crystals Applications

• Embedded system clock sources
• Microcontroller timing references
• Communication interface synchronization

Crystals Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compliance with RoHS directives and lead-free requirements. Confirm that the HC-49/US SMD footprint matches the target PCB layout dimensions. Validate the frequency tolerance and stability specifications against the application's timing budget before finalizing procurement orders.

Crystals Selection Notes

Select this component when a 4 MHz reference is required in a compact surface-mount form factor. Ensure the load capacitance of 20 pF aligns with the oscillator circuit design. Consider the operating temperature range limits for environmental suitability. Compare series resistance values against driver strength capabilities to prevent overdriving or insufficient oscillation startup conditions.

Crystals Part Context

This part belongs to the standard quartz crystal family produced by ECS Inc International. It serves as a passive frequency control element rather than an active oscillator module. The HC-49/US SMD package provides a robust mechanical structure suitable for high-volume electronics manufacturing. It is distinct from ceramic resonators or MEMS oscillators in terms of stability and aging characteristics.

Crystals Replacement Considerations

Direct substitutes include the ECS-40-20-5PX-TR and ECS-40-20-5PDN-TR, which share identical electrical parameters and package dimensions. Verify pin compatibility and mounting orientation when swapping between these variants.