ELF-22V040B

Common Mode Chokes Overview

The ELF-22V040B is a through-hole common mode choke manufactured by Panasonic Electronic Components. It features a vertical mounting configuration with four PC pins. The component has a maximum current rating of 4A and a typical DC resistance (DCR) of 57mOhm. Its physical dimensions are 32.00mm in length, 23.00mm in width, and 39.00mm in height.

Common Mode Chokes Feature Summary

• Vertical two-line through-hole construction for PCB integration
• Common mode noise suppression capability
• Four-pin terminal design for secure mounting

Common Mode Chokes Applications

• Power supply line filtering
• Signal integrity protection in electronic circuits
• Noise reduction in industrial equipment

Common Mode Chokes Procurement Notes

Verify the specific datasheet version to confirm electrical tolerances and mechanical drawings. Check RoHS compliance status as some sources indicate lead compatibility issues. Confirm availability status as the part may be discontinued or subject to long-lead times depending on the distributor. Ensure the vertical pin configuration matches the target PCB footprint requirements before ordering.

Common Mode Chokes Selection Notes

Select this component when a 4A current rating and low DC resistance are required for common mode noise suppression. The vertical form factor suits applications where board space is limited but height clearance is available. Compare DCR specifications against other chokes to ensure minimal voltage drop in the power path. Verify that the package dimensions fit within the enclosure constraints.

Common Mode Chokes Part Context

This component belongs to the ELF series of common mode chokes from Panasonic. These components are designed for electromagnetic interference (EMI) suppression in various electronic systems. The series typically offers robust performance for power and signal lines, providing reliable noise attenuation in compact packages suitable for automated assembly processes.

Common Mode Chokes Replacement Considerations

Check for direct substitutes with identical 4A ratings and similar DCR values. Verify that replacement parts maintain the same vertical through-hole pin configuration and overall envelope dimensions to ensure mechanical compatibility without PCB redesign.