Mains filter IEC socket

Hi folks.

Has anyone used one of the below sockets?

I'd like to try mains filtering but I'm absolutely not spending a small fortune.

IEC mains filter doo dah

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They contain class X and class Y capacitors that have a limited life in time and not time powered up.
I have seen photos of more than one where the metal casing had split and smelly smoke had come out and made a sticky mess.
 
In the sealed filter in the shared photo had bits of a RIFA capacitor showing.
I had one that was openly soldered onto the mains input terminals of a vacuum cleaner. It filled the room with smoke very quickly. It was also a RIFA.
 
I like these because they're small enough that they can be retrofitted to things that came with insufficient filtering. They work. You can expect them to meet their specs, so check the datasheet to see what range of frequencies they attenuate. I've never had one break, but I haven't used that many of them.
 
The ones in the scopes not owned by me were both Shufner.
First you write about a vacuum cleaner, then you write about scopes...

So you want to state that Shufner IEC filters are crap to be avoided?

I have opened many audio devices of decades of age having the RIFA caps still intact there.
But I have replaced them for the future decades - their reputation is not one of the best...
 
Hi folks.

Has anyone used one of the below sockets?

I'd like to try mains filtering but I'm absolutely not spending a small fortune.

IEC mains filter doo dah

View attachment 1374714
Yes they are a good solution when the right current rating is chosen (with a generous margin) and when they’re made by a good industrial brand. A 16A version for a 1A load is better avoided. Also check which frequencies/band they are designed to filter out. Also note that they definitely need PE.

I’d avoid the Aliexpress, Temu and similar quality ones. Just Corcom, Schurter, Schaffner, TDK, Epcos etc. Choose those with built in fusing and complete shielding. Those with true mains switch are handy and safe as they switch a device completely off from the grid.

The RIFA blah blah is a known issue. Apparently they made a series/batch X or Y caps for a longer period that burned after x hours. Like Nichicon had with a series caps and Arcotronics, drop type tantalums by various brands in the past, Lelon and …. All just a mishap in time and solved.