Self repairing fuse.

Hello,

I got a few self repairing fuse and tried to find information about the electrical characteristics for them but without luck. I understand that this is a kind of PTR? If so, the resistance in them will increase with the load, right?

The one I have is X72 XF040, XF050 and XF065.

It's called a PTC.

A reputable seller will also publish the datasheet that goes with it. If it came from China I guess you'll have to go with this datasheet.

Thanks a lot :slight_smile:

polyfuse ?

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