Electric Fuse Types & Applications

What is an Electronic Fuse?

Electronic fuses are a type of low resistance resistor that acts as a failsafe for excessive electrical currents. This allows electronic fuse to protect circuits from load overcurrent. Load overcurrent can be caused by many reasons including short circuits, miss matched circuits, overloading, or device failure.

Known to be an alternative to circuit breakers, fuses consist of a metal wire that separates and melts in case of an overload. The natural heat from the electricity passing through melts the wire when temperatures reach a certain threshold or are too excessive. Fuses help prevent dangerous situations, such as fires, from occurring. With their main objective to protect circuit systems, they do not interrupt normal functions and are rather an extra preventative low resistance component.

Electrical Fuse Applications

Fuses are used in many industrial electronic and electrical applications, including:

  • Hard Disk Drives
  • Laptops
  • LCD Monitors
  • Automotive Systems
  • Battery Packs
  • Gaming Systems & Portable Electronics
  • General Appliances and Devices
  • Cell Phones
  • Printers/ Scanners

Types of Electrical Fuses

There are several types and sizes of fuses available for electrical and electronic. Most fuses can be split into two main categories - AC & DC fuses. Besides their size differences, AC fuses (alternating current) allows for the reverse flow of currents, and are relatively simple by design. A DC fuse (direct current) are little more complex in design, and are made for currents to pass in a single direction. DC fuses do not allow for reverse flow.

Fuses can also differ in design by their purpose. They can either be one time use or resettable. There are also other characteristics to consider before choosing a specific fuse. They consist of:

  • Breaking Capacity
  • Rated Voltage
  • I2t Value
  • Speed/ Response
  • Current Capacity / Rated IN Current

Understanding and finding the correct fuse for your application is a necessity. The trained and skilled professionals at FuseCo are ready to help you find a solution for your specific needs. Contact us today or view our extensive list of Fuse Types below:

Types of Electrical Fuses carried by Fuseco: