CMT-8121-B

Common Mode Chokes Overview

The Triad Magnetics CMT-8121-B is a common mode choke inductor designed for EMI suppression in power supply applications. It features a vertical through-hole package with four PC pins. The component provides a maximum DC resistance of 7 mOhms and supports a current rating of 20A. It operates within an ambient temperature range of -55°C to 105°C and is rated for 1500V AC. The unit is certified by CSA, IEC, UL, and VDE agencies.

Common Mode Chokes Feature Summary

• Provides highly dependable common mode EMI suppression for eliminating noise common to all lines in various power supplies
• Features advanced magnetics design for superior noise elimination across multiple line types
• Includes comprehensive safety certifications from major regulatory bodies including UL, CSA, IEC, and VDE

Common Mode Chokes Applications

• Power supply EMI filtering
• Industrial equipment noise suppression
• Consumer electronics power line protection

Common Mode Chokes Procurement Notes

Verify the specific suffix 'B' against the manufacturer's official documentation to confirm exact physical dimensions and pin configuration. Ensure that the required current rating of 20A and voltage rating of 1500V AC align with the target circuit design parameters before procurement.

Common Mode Chokes Selection Notes

Select this component when high-current EMI suppression is required for through-hole mounting. The low DC resistance minimizes power loss, while the wide operating temperature range ensures reliability in demanding environments. Confirm compatibility with existing PCB footprint requirements.

Common Mode Chokes Part Context

This part belongs to the CMT series of common mode chokes from Triad Magnetics. These inductors are engineered for robust performance in filtering applications where significant current handling and strict noise reduction standards are necessary for compliance and system stability.

Common Mode Chokes Replacement Considerations

Consult official substitution lists for equivalent models within the CMT series or other manufacturers offering similar 20A through-hole common mode chokes with comparable voltage ratings and certification approvals.