Electronic Fuse

Electronic fuses use a semiconductor switch and control logic to limit or disconnect current during a fault, then reset afterwards instead of being replaced. Board designers build them in when a rail needs protection that recovers without a service call, when repeated nuisance blowing has made a wire element impractical, or when a supply has to be current-limited rather than simply cut.

 

As an authorized electrical distributor for multiple manufacturers, we stock electronic fuses from Mersen and Littelfuse across competing lines, in a range of amperage ratings, so you can match the trip threshold the rail requires, compare current ratings and package styles across brands, and choose a resettable device where a replaceable element will not do. Same-day shipping on in-stock items ordered before 2pm local time.