0662.040HXLL

Package / Case:	Radial, Can, Vertical
DC Cold Resistance:	7.5 Ohms
Size / Dimension:	0.335" Dia x 0.333" H (8.50mm x 8.45mm)
Color:	--
Operating Temperature:	--
Approvals:	CSA, UL
Melting I²t:	0.00016
Breaking Capacity @ Rated Voltage:	35A
Mounting Type:	Through Hole
Series:	LT-5™ 662
Response Time:	Fast
Voltage Rating - AC:	250V
Current Rating:	40mA
Fuse Type:	Board Mount (Cartridge Style Excluded)
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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0662.040HXLL Electric Fuses

Electric Fuses are electrical protection devices used to safeguard electrical circuits and systems from damage caused by current overload and short circuits. The 0662.040HXLL Electric Fuse is a small and lightweight, glass-encapsulated fuse that is designed to rapidly open circuits under overload conditions.

Application Fields

The 0662.040HXLL Electric Fuse is primarily used in electronic equipment, power distribution systems, telecommunications systems, motor control systems, and other low voltage applications. It is also highly resistant to vibration and temperature extremes, making it suitable for a variety of applications both indoors and outdoors.

Design and Construction

The 0662.040HXLL Electric Fuse consists of a cylindrical lead-free alloy base, a glass envelope, and a metal cap. The alloy base has a diameter of 0.040 inches, and a length of 0.662 inches. The glass envelope that encloses the entire assembly measures 0.6 inches in length, and 0.6 inches in diameter. The metal cap encloses the ends of the envelope, and is hermetically sealed with a thin metal band that runs along the length of the envelope. The alloy base contains the main fusing element, which consists of an alloy wire wrapped in a porous medium, such as mica. The porous medium permits the passage of electrical current through the wire, and the alloy wire heats up as the current passes through it. In addition, the interior of the glass envelope is filled with a mixture of several gasses that are designed to reduce the thermal inertia of the glass envelope, ensuring that the fuse does not open too slowly. The envelope also contains a pair of wires that are connected to the alloy base, allowing an external circuit to be connected to the fuse.

Working Principle

The 0662.040HXLL Electric Fuse works on the principle of thermal breakdown. When the current flowing through the fuse exceeds the rated value, the fuse wire heats up and melts, thus breaking the circuit and preventing the excessive current from causing damage to the equipment or system in which it is installed.The fusing element is designed to operate within a specified range of temperatures and currents. When the current exceeds the rated value, the fusing element heats up quickly, and the fuse opens within a specified period of time. The current rating of the fuse is marked on the external cap of the fuse, allowing for easy identification.

Advantages

The 0662.040HXLL Electric Fuse offers a number of advantages over other types of fuses. It is small and lightweight, and therefore can be installed in tight spaces. Its glass envelope ensures that the fuse does not suffer from mechanical or corrosion damage. In addition, its resistance to vibration and temperature extremes make it suitable for both indoor and outdoor applications.

Conclusion

The 0662.040HXLL Electric Fuse is a small and lightweight electric fuse that is designed to rapidly open circuits under overload conditions. Its glass envelope provides protection against environmental and mechanical damage, and its resistance to vibration and temperature extremes make it suitable for a variety of applications. The fuse works on the principle of thermal breakdown, and its current rating is marked on the external cap.

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