Introducing the TCKE9 eFuse

I am asking if my concerns are correct and therefore whether I should buy a USB hub that has protection so that the USB port is not damaged.

The USB spec requires USB ports to hold up to a short circuit, and some do better than others. Some manufacturers meet the minimums and no more.

I used a PTC Resettable Fuse. The fuse gets hot and opens up but later it cools off and resets. Last time my circuit used almost no current and ...

A hub should be reasonably-good protection. Shorting a USB port usually won't permanently kill it. Usually they shut-down safely when shorted and then you ...

In a short circuit situation external to the USB host port the overcurrent protection device limits the amount of current that the USB device can draw from the ...

USB ports are usually protected from over currents by fuses (sometimes a single fuse will be responsible for protecting 2 USB ports). These ...

Many motherboards uses PTC thermal cutout as the short circuit protection for the USB ports. This device go into high impedance state when its ...

Modern laptops (including MacBooks), and many desktops, have protection on USB ports to prevent too much current draw, not just shorts. If a ...

Engineers have two choices: add an external protection chip or select a USB Type-C/USB PD Controller with CC/SBU lines rated for 24 V or more.