ELF-21N035A

Common Mode Chokes Overview

The ELF-21N035A is a single-phase AC line filter from the Panasonic ELF-21N series, designed for common mode noise suppression. It features a rated current of 3.5 A and an inductance of 25 mH. The component utilizes through-hole mounting technology with tin/copper terminal plating. Physical dimensions are approximately 29.0 mm in length, 20.0 mm in width, and 19.5 mm in height. It operates within a standard temperature range suitable for industrial applications.

Common Mode Chokes Feature Summary

• Provides effective attenuation of common mode electromagnetic interference on AC power lines
• Constructed with high-permeability magnetic cores to ensure stable inductance performance
• Designed for robust mechanical stability using through-hole PCB mounting

Common Mode Chokes Applications

• Industrial control systems requiring EMI suppression
• Power supply input stages for electronic equipment
• Medical device power filtering applications

Common Mode Chokes Procurement Notes

Verify the specific manufacturing origin and RoHS compliance status against the latest official datasheet or production notice. Confirm that the component meets all required safety certifications for the target market. Ensure compatibility with existing PCB footprint designs before procurement.

Common Mode Chokes Selection Notes

Select this model when a 3.5 A current rating and 25 mH inductance are required for single-phase AC line filtering. Consider the physical dimensions and through-hole mounting requirements for integration into the system design. Evaluate thermal management needs based on the rated current and ambient operating conditions.

Common Mode Chokes Part Context

This component belongs to the ELF-21N series of AC line filters manufactured by Panasonic Electronic Components. The series is characterized by its use in general-purpose EMI suppression for single-phase power lines. Production history indicates transfers between manufacturing sites, which may affect specific marking or minor packaging details.

Common Mode Chokes Replacement Considerations

Consult official Panasonic documentation for confirmed substitute part numbers within the ELF series. Verify that any alternative component matches the electrical specifications and physical footprint requirements.