PADIS. Wow, that’s so interesting that I had to go pull one of my own Furutech fuses. Surely enough, it does have the Padis "PFA" logo printed on the fuse in addition to the "Furutech" label. Interesting. Research indicates that Padis is a European distributor for Furutech. The Padis marketed fuses are cheaper. However, it’s unknown whether they are the same as the "Furutech" branded fuses.
https://www.amazon.de/Padis-FUSE-Feinsicherung-Stromst%C3%A4rke-Ansprechverhalten/dp/B005LF1ZL2
A translation of the above PADIS listed on Amazon indicates a pure silver conductor (which is the same as the Furutech T13A fuse targeted for European usage). It is not the same as the standard Furutech TF series fuses.
A couple of things that I could not find on a generic PADIS fuse:
- special low induction copper alloy conductor (probably Phosphorous Bronze or Beryllium Copper).
- ceramic body with special damping filler
It’s unkown to me if the generic PADIS fuses have these two characteristics or if they are just non-filled fuses with silver conductors (which will cause it to sound much different than the Furutech branded fuses). The generic PADIS fuses are definitely cheaper than the "Furutech" branded fuses.