919594

Fuses are safety devices in electrical systems, used mainly to protect components from over-current, over-voltage and short-circuit conditions ¹. The 919594 series of fuses is no exception, providing reliable over-current protection for high reliability applications. This article will discuss the application field, working principle, characteristics and selection guide for the 919594 series of fuses.

Application Field

The 919594 series of fuses is designed with excellent over-current protection for power supplies, chargers, battery packs, and other critical power conversion systems. It can be used in both AC and DC circuits, providing reliable protection for sensitive electronic components. It is ideal in applications such as:

• Cellular phone and tablet power supplies
• Telecommunication power systems
• Remote monitoring systems
• Surge protection
• Portable medical devices
• High reliability applications

Working Principle

The 919594 series of fuses use a metal wire as the current-carrying element. The wire is connected to two metal contact points along its length, and the entire construction is housed within an insulating shell. When the current drawn exceeds the fuse\'s rated current value, the metal wire will heat up due to the current flowing through it, eventually melting and breaking the circuit. By breaking the circuit, the fuse prevents damage to other components from the over-current condition.

Characteristics

The 919594 series of fuses has the following characteristics:

• UL/VDE approved
• Rated current: 15A-30A
• Rated voltage: 250V AC/DC
• Rated breaking capacity: 10kA
• Operating temperature: -40°C - +85°C
• Reliable and consistent protection
• Easy installation
• High temperature endurance

Selection Guide

Selecting the right fuse for your application means considering the size, current and voltage rating, breaking capacity and rated temperature. The following chart is a guide for the 919m594 series of fuses:

When selecting a fuse for an application, it is important to ensure that it is rated for the system\'s current and voltage requirements. Fuses with higher ratings than necessary should also be avoided, as this will limit the system\'s performance. Additionally, it is important to ensure that the fuse can safely break the expected maximum current so as to protect the system\'s components.

Conclusion

The 919594 series of fuses provides excellent over-current protection for a range of power supplies and other critical power conversion systems. The fuses are UL/VDE approved, relay and consistent, and can operate in a wide temperature range. When selecting a fuse, always make sure to consult the selection table above and ensure that the fuse is rated for the system\'s expected current and voltage requirements.

References

1. Fuses, Wikipedia.