2JQ 2

Response Time:	Fast
DC Cold Resistance:	0.044 Ohms
Size / Dimension:	0.201" Dia x 0.543" L (5.10mm x 13.80mm)
Color:	--
Operating Temperature:	-55°C ~ 125°C
Approvals:	CE, CSA, cURus
Melting I²t:	2.3
Breaking Capacity @ Rated Voltage:	100A AC, 150A DC
Mounting Type:	Holder
Package / Case:	2AG, 5mm x 15mm
Series:	2JQ
Voltage Rating - DC:	140V
Voltage Rating - AC:	350V
Current Rating:	2A
Fuse Type:	Cartridge, Glass
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Fuses – 2JQ 2 Application Field and Working Principle

Fuses, as a part of electrical safety systems, are designed to prevent the dangerous circumstance if an electric device is overloaded or short circuited. Therefore, in order to keep electric devices and fires in check, it is important to understand the application field and working principle of 2JQ 2, a type of fuse which is extensively used in buildings, electronic or electrical projects.

Application Field of 2JQ 2 Fuse

2JQ 2 type fuse is mainly applied in houses, buildings, factories, airports and other places of public place which require high protection against electrical incidents. Moreover, the widely application of 2JQ 2 type fuse is mainly because of its conformability to several regulations about electric safety. For instance, there exist the following regulations concerning the usage of such fuse:-Fuse Rating: The fuse rating must be adequate to the current and voltage of the circuit, so as to ensure the reliable and safe protections against electric incidents.-Mounting & Replacement: The mounting and replacement of 2JQ 2 fuse shall be done strictly in accordance with the instructions of the manufacturer to ensure the functionality of protection.-Placement: The placement of the fuse shall be accessible and visible to make it easily to be checked and replaced.

Working Principle of 2JQ 2 Fuse

2JQ 2 type fuse is mainly composed of two parts: the electric arc extinguisher and the fuse element, which can be (1) fuse wire (2) fuse cartridge (3) fuse contacts.In an over-current or short-circuit incident, the current of the electric device or the circuit would turn over the specified specification and incur extremely high current. The increase in electric current will cause an increase in heat, which will then melt the segment of fuse element. This immediate release of heat will disperse the electric arc, cut off the power, and avoid further fire accidents caused by electricity accumulation. Meanwhile, the other segment of the fuse element can protect the electric device from damages due to over-current or short-circuit.

Conclusion

In conclusion, understanding of the application field and working principle of the 2JQ 2 type fuse is essential to ensure a safe and reliable protection against electric accidents. Furthermore, the selection and placements of 2JQ 2 type fuse shall be done strictly in accordance with the instructions from the manufacturer and relevant regulations for higher protection performance.

The specific data is subject to PDF, and the above content is for reference

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