3404.2321.23

Response Time:	Slow
Size / Dimension:	0.472" L x 0.205" W x 0.236" H (12.00mm x 5.20mm x 6.00mm)
Color:	--
Operating Temperature:	-40°C ~ 85°C
Approvals:	--
Melting I²t:	0.054
Breaking Capacity @ Rated Voltage:	100A
Mounting Type:	Holder, Surface Mount
Package / Case:	2-SMD, Square End Block with Holder
Series:	OMZ 125
Voltage Rating - DC:	125V
Voltage Rating - AC:	125V
Current Rating:	375mA
Fuse Type:	Board Mount (Cartridge Style Excluded)
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

Fuses are a key component of many electric circuits. They are dedicated to protecting the electric circuits from electrical faults. The safety of an electrical system relies on the correct type and characteristics of designs of the fuses. This article will discuss the application fields and working principle of fuses.

Application Field

Fuses are applied in a wide range of electric circuit applications. Common types of fuse used in home appliances are thermal fuses, fuse blocks, circuit breakers, and single-pole breakers. They are also used in industrial machinery, automotive systems, and telecom equipment. Thermal fuses are normally used in home appliances like microwave ovens, refrigerators, and air conditioners. The thermal fuse can detect the presence of excess heat. When the temperature of the device exceeds a certain threshold, the thermal fuse will trip and cut off the power to the device.Fuse blocks are mainly used in automotive systems, such as automotive power systems, charging circuits, etc. They are used to individually protect each power line in the system. These fuse blocks are designed to trip when the current exceeds the manufacturer’s rating.Circuit breakers are used in both domestic and industrial circuits. A circuit breaker is a device that can automatically disconnect the power to a circuit when it detects a fault or an overload. It can be used as a manual shut-off switch.Single-pole breakers are used in single-pole electrical systems, such as in residential homes. They can be used to interrupt the power to a particular circuit when it detects an overload or fault.

Working Principle

Fuses work on a simple principle. A fuse consists of a thin metal wire or filament, which is surrounded by a thermally insensitive material. When an electrical current flows through the filament, it causes the filament to heat up. When the current rises above a certain threshold, the filament melts, thereby breaking the electrical circuit.The current rating of a fuse is determined by the size and type of filament used in the fuse. The fuse should be rated to handle the maximum current that is expected to flow through it. If the current is greater than the fuse rating, it will cause the fuse filament to fuse, thereby tripping the circuit.

Conclusion

Fuses play a critical role in ensuring the safety of electrical systems. They are used in a wide range of applications, including home appliances, automotive systems, and industrial machinery. The working principle of fuses is based on the melting of a thin filament when the current rises above a certain threshold. Fuses are a cost-effective and simple way to protect an electrical system from damage caused by overcurrents or short circuits. They are easy to replace and can be installed quickly and easily. With the right fuse, you can ensure the safety of your system and cost-effectively prevent costly repairs and replacements.

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