Package / Case:	Radial, Box
DC Cold Resistance:	0.07158 Ohms
Size / Dimension:	0.335" L x 0.157" W x 0.315" H (8.50mm x 4.00mm x 8.00mm)
Color:	--
Operating Temperature:	-40°C ~ 85°C
Approvals:	cUL, UL
Melting I²t:	5
Breaking Capacity @ Rated Voltage:	50A
Mounting Type:	Through Hole
Series:	TE5® 397
Response Time:	Slow
Voltage Rating - AC:	125V
Current Rating:	1.25A
Fuse Type:	Board Mount (Cartridge Style Excluded)
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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39711250440 Application Field and Working Principle

Fuses

Fuses are an important part of electrical circuit protection. They are designed to detect excessive current flow which can cause damage to the circuit. Fuses have a specified current rating which is the maximum current that the fuse can carry before it will blow. 39711250440 is a type of fuse which is used in both AC and DC circuits.The principle behind fuses is simple - when a current passes through the fuse, heat is generated. This heat is referred to as ‘resistance heating’. The heat causes the fuse element to melt, creating an open circuit. This stops the current flow and protects the circuit from damage.In AC circuits the 39711250440 is most commonly used as a single-phase current limiter. This means that it is used to limit the maximum current allowed to flow through the circuit. The fuse will blow under a specified overload or short circuit condition, interrupting the power supply to the circuit. This helps to protect the circuit components from being damaged by excessive current.In DC circuits, 39711250440 fuses are used as a means of protecting against excessive current. This is known as circuit protection. The fuse will blow when the current exceeds its rated value, stopping the current and protecting the circuit from further damage.Fuses can be used in a variety of applications and are an important part of electrical circuit protection. 39711250440 fuses are a common type of fuse which are used in both AC and DC circuits for protection. They operate on the principle of resistance heating, where the heat produced by the current causes the fuse element to melt, interrupting the current and protecting the circuit.

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Part Number	Manufacturer	Price	Quantity	Description