0218.080H Circuit Protection

Package / Case:	5mm x 20mm
DC Cold Resistance:	12.6 Ohms
Size / Dimension:	0.205" Dia x 0.787" L (5.20mm x 20.00mm)
Color:	--
Operating Temperature:	-55°C ~ 125°C
Approvals:	BSI, CSA, SEMKO, UL, VDE
Melting I²t:	0.0265
Breaking Capacity @ Rated Voltage:	35A
Mounting Type:	Holder
Series:	218
Response Time:	Slow
Voltage Rating - AC:	250V
Current Rating:	80mA
Fuse Type:	Cartridge, Glass
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Fuses - 0218.080H Application Field and Working PrincipleFuses are one of the most important components in the electrical power systems and are used to securely protect circuits and equipment from overcurrents. 0218.080H fuses are amongst the most widely used fuses today. This article will look into their application field and working principle.Application Field of 0218.080H Fuses0218.080H fuses are small in size but have a high current carrying capacity and are used to protect different systems in various industries. They can efficiently protect and isolate a wide range of industrial and power systems, including high-voltage motors, generators, transformers, switchgears, controllers, circuits and networks.Apart from industrial and power systems, 0218.080H fuses are also used in various household appliances such as refrigerators, washing machines, microwave ovens, and air-conditioners. They can be used in light fixtures and controllers in both residential and commercial buildings.Working Principle of 0218.080H FusesThe 0218.080H fuse works on the principle of heat dissipation. When the voltage across the fuse is greater than its rated value or a surge in current suddenly happens, the fuse element in the fuse heats up due to Joule heating. This heat will cause the fuse element to melt, breaking the electric circuit and thus protecting the system.The time taken for the fuse to melt is an important parameter to be considered. 0218.080H fuses are designed to have a specific melting time depending on the amount of current passed through them. This melting time can be set to provide the required protection for the system and the equipment connected to it.The 0218.080H fuse is made of a silver and copper wire which are connected in series with an insulating tube. The two wires are connected together at one end using a metal plug and at the other end, they are connected to the holders. The metal plug is sealed using a sealant. The current rating and melting time of the fuse depend on the geometrical shape and size of the silver wire used.ConclusionThe 0218.080H fuse is widely used to protect and isolate various industrial and power systems as well as residential and commercial appliances. It works on the principle of heat dissipation and can maintain a steady current flow for a specific amount of time before it melts and breaks the electric circuit. The time taken for the fuse to blow depends on the size and shape of the silver and copper wire used in the fuse element.

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