Global
CN
Applications
Support
Support
With over a thousand cooperative customers and 17 years of service experience, we can provide you with everything from model selection to technical support
Development
Development
Our unyielding mission is to continuously innovate and lead the industry's progress.
News & Events
News & Events
We will share every little bit of our life with you at all times
About
About
Yinte Electronics integrates technology research and development, chip manufacturing, packaging and testing, sales, and service
Careers
Careers
Unleash potential together, shape a healthy future for humanity
Support
With over a thousand cooperative customers and 17 years of service experience, we can provide you with everything from model selection to technical support

Can a common-mode inductor be added during CE (Complete Equipment) rectification of a data center switch?

Time:2025-11-07 Views:505次
Share:

The primary measure for rectifying conducted emissions (CE) from data center switches is to increase the common-mode inductor. In the 0.15MHz-30MHz frequency band, a common-mode inductor provides high common-mode impedance to suppress common-mode current return. The preferred choices are the CMZ7060A-701T (700Ω@100MHz) from Etymotic Electronics for the power port, with a DC resistance of 13mΩ suitable for 10A high current; the CMZ3225A-501T (500Ω@100MHz) for the secondary side; and the CMZ2012A-900T (90Ω@100MHz) for signal lines. During rectification, first identify the frequency band exceeding the standard. For frequencies below 1MHz, increase the common-mode inductor inductance; for frequencies above 1MHz, choose a higher impedance frequency. Actual measurements show that adding the CMZ7060A-701T reduces conducted interference by 18-25dB in the 1MHz-10MHz frequency band, with a cost increase of only 2-3 yuan.