3JQ 1.25

Series:	3JQ
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Fuse Type:	Cartridge, Glass
Current Rating:	1.25A
Voltage Rating - AC:	350V
Voltage Rating - DC:	140V
Response Time:	Fast
Package / Case:	2AG, 5mm x 15mm (Axial)
Mounting Type:	Through Hole
Breaking Capacity @ Rated Voltage:	100A AC, 150A DC
Melting I²t:	0.8
Approvals:	CE, CSA, cURus, PSE
Operating Temperature:	-55°C ~ 125°C
Color:	--
Size / Dimension:	0.217" Dia x 0.591" L (5.50mm x 15.00mm)
DC Cold Resistance:	0.075 Ohms

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What is a 3JQ1.25 Fuse

A 3JQ1.25 fuse is a type of fuse typically used in electrical circuits. Fuses are used to protect circuits from damage caused by excessive current. The 3JQ1.25 fuse is a fast-acting fuse with a rated current of 1.25 amps and a rated voltage of 250 volts.

Application field

3JQ1.25 fuses are often used in a wide variety of electronic devices and equipment. These may include computers, televisions, air conditioners, refrigerators, microwaves, and other appliances. They are also often used in automotive and other industrial applications.

Working principle

The fuse consists of two or more metal conductors, which are divided into multiple sections by an insulator. When a current flows through the fuse, it creates heat, which melts the fuse’s envelope. Once this occurs, the insulator separating the metal conductors breaks, allowing the current to pass between the conductors and bypass the fuse itself. The current then flows across the circuit, and if it exceeds the rated current, it trips the fuse.The 3JQ1.25 fuse is designed to operate at a relatively low current, which ensures that it will not trip unnecessarily. This allows it to protect the circuit from any excessive current without unduly limiting the amount of current that passes through it and affects the performance of the device or appliance.

Advantages and disadvantages

The 3JQ1.25 fuse has several advantages, including its low current rating and affordability. In addition, the fuse has a low rate of failure and is easy to replace.However, there are also some drawbacks to the fuse. Since it is a mechanical device, it cannot detect a current that is too low or too high, and so it may not be able to protect the circuits from such currents. Additionally, the 3JQ1.25 fuse may not be suitable for use in circuits with high amperage draw, as it may not be able to withstand the higher current.

Conclusion

The 3JQ1.25 fuse is a fast-acting, low-current fuse used in a variety of electronic and other electrical applications. It is known for its affordability and ease of replacement, and is designed to operate at relatively low currents. However, it may not provide adequate protection for circuits with high amperage or those with very low or very high currents.

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