EH28-3.0-02-9M0-X

Overview

The EH28-3.0-02-9M0-X is a horizontal common-mode suppression choke manufactured by Schaffner EMC Inc., part of the EH series. It features a ferrite core and through-hole termination for PCB mounting. The component provides an inductance of 9 mH with a tolerance of 15%. It supports a maximum DC current of 3 A and has a maximum DC resistance of 100 mOhms. The self-resonant frequency ranges from 0 Hz to 400 Hz. Operating temperatures span from -25 °C to +100 °C. Physical dimensions are approximately 28 mm x 28 mm x 22.9 mm, weighing 31 g.

Feature Summary

• Horizontal orientation design for compact PCB integration
• Ferrite core construction for high saturation resistance
• Through-hole termination for secure board mounting

Applications

• Power line filtering in electronic equipment
• EMI suppression for AC/DC power inputs
• Common-mode noise reduction in industrial control systems

Procurement Notes

Verify the exact suffix designation against the manufacturer's latest datasheet to confirm physical orientation and terminal configuration. Ensure the selected variant matches the required inductance value and current rating for the specific circuit application. Cross-reference the package dimensions with the PCB footprint layout prior to procurement to ensure mechanical compatibility.

Selection Notes

Select this component when horizontal mounting space is constrained within the enclosure design. The 3 A current rating suits moderate power applications requiring effective common-mode noise attenuation. Verify that the 9 mH inductance meets the target frequency range for EMI suppression requirements. Confirm thermal management capabilities align with the operating environment temperature limits.

Part Context

This component belongs to the EH series of common-mode chokes designed for electromagnetic interference suppression. The series utilizes ferrite cores to provide high impedance to common-mode signals while maintaining low differential mode loss. These components are engineered for robust performance in demanding electronic environments, offering reliable noise filtering for sensitive circuits.

Replacement Considerations

Direct substitutes include the EH28-3.0-02-9M0 variant. Verify mechanical fit and electrical parameters before substitution. Other series such as EV may offer vertical alternatives but require different mounting considerations.