5 × 20 mm Fuse – 5 A ,10 A

The 5 × 20 mm fuse is a protective component designed for electrical and electronic circuits. It interrupts current flow in the event of an overcurrent, according to its operating characteristics, helping limit damage caused by overloads and short circuits. Its compact size makes it suitable for a wide range of electronic devices and projects.

Available in 5 A or 10 A ratings, this cartridge fuse fits compatible 5 × 20 mm fuse holders. Select the appropriate rating based on the circuit’s requirements and the equipment manufacturer’s specifications.

Technical Specifications

Specifications to confirm on the actual product: rated voltage, body material, operating speed, and breaking capacity. The 5 × 20 mm size alone does not determine these specifications. Versions may feature a glass or ceramic body and fast-acting (F) or time-delay (T) characteristics. Suitability for AC or DC circuits also depends on the specific model.

Applications

Depending on the selected model’s specifications, this fuse can be used in:

• Power supplies and small transformers.

• Electronic circuit boards and control circuits.

• Household appliances and electronic devices.

• UPS units and certain backup power systems.

• Automation systems and small motor-driven equipment, with operating characteristics suited to startup current.

Project Examples

Possible applications include the following, provided the fuse is correctly selected for the circuit:

• Bench power supply: adding fuse protection to an input or output, depending on the circuit design.

• Control enclosure: protecting a branch supplying an electronic board or a small transformer.

• Small motor project: integrating suitable protection, potentially using a time-delay fuse to accommodate startup current.

• Electronic device repair: replacing a faulty cartridge fuse with one that has equivalent specifications.

Precaution: do not replace a 5 A fuse with a 10 A fuse without technical verification. When replacing a fuse, also match the required voltage rating, fast-acting or time-delay characteristic, and breaking capacity. Matching dimensions alone does not guarantee compatibility.