RIFA capacitor failure

(AI translated)

Anyone somewhat involved with old electronics will eventually encounter RIFA capacitors and their tendency to catch fire. I finally experienced it myself – a peculiar device was working, and I had to walk the dog. When I got back home, the room smelled like burnt sugar. I had to disassemble the device, and here’s the reason:

The larger capacitor with a hole was between the live (L) and neutral (N) wires. The other two capacitors connected these wires to the ground (PE). As seen in the photo, the main issue with these capacitors is their transparent plastic. Over time, it cracks and lets in air moisture. After some time, just boom, and the room is full of smoke. Nowadays, capacitors are not very necessary, but if we replace them, the larger one must be X-class (or better), and the smaller ones Y-class.

And to make the message longer, here’s another photo: ultrawide CRT Yes, that’s an “ultrawide” CRT. It’s precisely because of this format that I wanted to get this device. However, there will probably be an article about it another day, or maybe just a new page in my collection on the website.

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