Re: 470 µf 200 V JEE

Sounds like it's beyond economic repair, atleast for my friend.


Thank you everyone for your help, this seems to be a great forum.


[URL=http://thewayhomeorfacethefire.net]The Way home or face The Fire[/URL]Re: 470 µf 200 V JEE

Sounds like it's beyond economic repair, atleast for my friend.


Thank you everyone for your help, this seems to be a great forum.


[URL=http://thewayhomeorfacethefire.net]The Way home or face The Fire[/URL]

Re: 470 µf 200 V JEE

Don't think my friend has a digicam.

Here's some further details from him. Worrysome stuff. I wonder how many fires PSU:s have caused? I always unplug my machines when they are not in use.[INDENT]


If it helps with the diagnosis to know when it happened, here is what happened:-

This power-supply burned out when the computer was not running.

It stank the place out with a smell like that of a transformer overheating.

It has been plugged in with power to it, but with the computer...

Re: 470 µf 200 V JEE

According to the FAQ the secondary side is:

Output Rectifier & Filter
Though the output rectifiers are usually two rectifiers in one package, in the most common topology, the two devices have different functions. One of the devices conducts during the “on” part of the square wave from the transformer, charging the inductor. The other rectifier conducts during the “off” time, providing a current path for the discharge of the inductor. The output inductor and output capacitors form a filter that convert the square wave to a DC...

Re: 470 µf 200 V JEE

Dear Per,

Thank you for your swift reply.


The capacitors have discolouration on the outside as from overheating and the hot wax has obviously overheated and run.

The power-supply stank the room out with a similar smell to the burning wax in a transformer and stopped working.

On inspection I can see no signs of any overheating on any of the transformers or any other part, except the two caps mentioned.

Where is the secondary side located please?

Dear Everyone,

A friend of mine wishes to fix a power supply he has. It has two JEE capacitors: 470 uF and 200 V which he says show signs of overheating and wax having come out of one or both whilst they were overheating.

The other numbers on the other side of these components are:-

CE.W IM 0346 85º C

They are cylinder shaped 35mm high x 20mm diameter.

JEE is listed here as a bad cap, so he should probably be able to fix the power supply by repleacing them?

He is also wondering if they should be 250Volts,...