ELF-20N020A

Common Mode Chokes Overview

The ELF-20N020A is a common mode filter from the Panasonic ELF series, designed for attenuation of both common and differential noise. It features a radial termination style suitable for through-hole mounting. The component has a maximum DC current rating of 2 A and a maximum DC resistance of 113 mOhms. It operates within a temperature range of -20°C to +115°C.

Common Mode Chokes Feature Summary

• Combination line filter for attenuation of both common and differential noise
• Radial termination style for through-hole mounting

Common Mode Chokes Applications

• Attenuation of common mode noise in power lines
• Attenuation of differential mode noise in power lines
• Electromagnetic interference suppression in electronic equipment

Common Mode Chokes Procurement Notes

Verify the exact part number spelling, as some sources list it as ELF20N020A without the hyphen. Confirm availability status, as multiple distributors indicate this specific model may be obsolete or not available online. Request current technical specifications directly from the manufacturer before purchase, as designs are subject to change without notice.

Common Mode Chokes Selection Notes

Select this component when through-hole mounting is required for common and differential noise suppression. Ensure the circuit current does not exceed 2 A and the operating environment stays within -20°C to +115°C. Verify compatibility with the target PCB layout due to its radial lead configuration.

Common Mode Chokes Part Context

This component belongs to the Panasonic ELF series of combination line filters. These filters are engineered to suppress electromagnetic interference in AC power lines. The ELF series typically offers various current ratings and impedance characteristics to suit different power supply applications.

Common Mode Chokes Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Panasonic directly for equivalent or newer generation components if this obsolete part is required.