Power-line EMI filters
Power-line EMI filters: clean power through the shield.
Every cable that enters a shielded room is a possible leak. Power-line filters let current in and keep radio-frequency noise out.
Where they are used
- Anechoic chambers and shielded rooms
- Screened cabinets and enclosures
- Test labs and manufacturers building their own test environments
How a filter is chosen
- AC, DC or AC and DC lines
- Number of lines, voltage and current rating
- Insertion loss across the frequency range
- Mounting on the shield wall
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