Product Item: Φ2.4x7、5x20mm FST Miniature Glass Tube Fast Blown Cartridge Fuses
Category: Current fuse
Fuse Application Notes
1. The normal operating current is operated at 25 ° C, and the current rating of the fuse is usually reduced by 25% to avoid harmful melting. Most traditional fuses use a material with a lower melting temperature. Therefore, this fuse is more sensitive to changes in ambient temperature. For example, a fuse with a current rating of 10A is generally not recommended to operate at a current greater than 7.5A at an ambient temperature of 25 ° C.

2. Voltage Rating The voltage rating of the fuse must be equal to or greater than the effective circuit voltage. The general standard voltage rating series are 32V, 125V, 250V, 600V.
3． The resistance of a resistance fuse is not important throughout the circuit. Because the fuse resistance of amperage less than 1A is only a few ohms, this issue should be considered when using fuses in low voltage circuits. Most fuses are made of materials with a positive temperature coefficient, so there is a distinction between cold and thermal resistance.