Features:	--
DC Cold Resistance:	0.000705 Ohms
Melting I²t:	20550
Size / Dimension:	0.816" Dia x 3.590" L (20.73mm x 91.19mm)
Package / Case:	Cylindrical, Blade Terminal (Bolt)
Mounting Type:	Bolt Mount
Breaking Capacity @ Rated Voltage:	200kA
Operating Temperature:	--
Approvals:	UR
Class:	--
Series:	POWR-GARD® LVSP
Applications:	TVSS Protection
Response Time:	Slow
Voltage Rating - AC:	600V
Current Rating:	40A
Fuse Type:	Cartridge
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Overview

LVSP0040T is an electrical specialty fuse designed for circuit protection applications. It is a low voltage, high current fuse with a dual element design, providing both current limiting and short-circuit protection in high power circuits.

Application Field

The LVSP0040T is typically used in high power automotive applications, such as headlamps, engine control systems, and other circuits that require high power circuit protection. It is suitable for automotive applications up to 40A with a rated voltage of up to 32V. It has been designed to be used in industrial and commercial applications with ratings up to 70A.

Working Principle

The LVSP0040T fuse is a dual element design. The primary element is a resistor that limits the maximum current that can flow through the device. The secondary element is a switch that reacts if the current reaches the upper limit, disconnecting the circuit. This ensures that the circuit is protected and any catastrophic damage is avoided. In the event of a short circuit or other overload condition, the current is limited by the primary element. When the current reaches the upper limit, the secondary element trips and interrupts the current flow. This gives the operator time to respond to the fault and take corrective action.The LVSP0040T has an unique melting time feature. When the thermal stress generated by the current exceeds its melting time, the element melts and disconnects the circuit permanently. This ensures that the fuse is not damaged by repeated over-currents or high-current surges, protecting the sensitive devices in the circuit.

Conclusion

The LVSP0040T is a versatile and reliable electrical specialty fuse designed for applications that require circuit protection. With its dual element design, it provides both current limiting and short-circuit protection in high power circuits, with a maximum rated current of 70A and a rated voltage of up to 32V. The unique melting time feature ensures that the fuse is not damaged in repetitive high-current events, protecting sensitive equipment in the circuit.

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