2719250

Series:	--
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Fuse Type:	Board Mount (Cartridge Style Excluded)
Current Rating:	3.45A
Response Time:	Fast
Package / Case:	Radial, Can, Vertical
Mounting Type:	Through Hole
Breaking Capacity @ Rated Voltage:	--
Approvals:	--
Operating Temperature:	--
Color:	--
Size / Dimension:	--

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FusesFuses are a passive device that are used to protect electrical circuits from overload. They are designed to blow (open) when a certain level of current is reached, thereby limiting the amount of power (electrical heat) that can flow through the circuit. This limits the damage that can result from an undersized circuitry or a short circuit. As a result, fuses provide an important safety function in the electrical circuit.The 2719250 application field and working principle of fuses can vary depending on the type of fuse being used. Generally, fuses contain a current-limiting element, which is designed to melt at a certain temperature when exposed to an abnormal amount of electrical current. Fuses are available in two general types: cartridge and screw-in. Cartridge fuses have two elements: a metal filament and a non-metal fuse element. The non-metal element, usually made of a ceramic material, breaks down when exposed to excess current, and the metal filament melts when the breaking down of the element causes heat to be generated. Screw-in fuses contain a metal wire that is designed to melt at a certain temperature when exposed to excess current.When a circuit is overloaded, the current draws more energy than what the circuit is designed to handle and as a result, the fuse element melts, disconnecting the circuit and preventing further damage. Some fuses have an indication window which allows the user to see if the fuse has blown or not.Fuses are also designed to blow (open) if they are overloaded by voltage. This is known as voltage-sensing fuses. Voltage-sensing fuses are designed to protect home appliances, such as TVs, microwaves and computers, from over-voltage spikes or from extremely low voltage.Although fuses are inexpensive and simple to use, they must be selected carefully to match the amount of current that the circuit or appliance is expected to draw. If the fuse is too weak, it will blow (open) too easily; if it is too strong, it will not provide adequate protection.Fuses are usually rated by the amount of current that they can carry safely, which is determined by the fuse’s “amp rating”. Fuses also have a time-delay rating, which indicates how long it will take for the fuse to blow (open) if the circuit is overloaded. The fuse may be rated for short-time, medium-time or long-time operation.In summary, fuses provide an important safety device for electrical circuits and appliances. They are designed to limit the amount of power (electrical heat) that can flow through the circuit, and are available in two types (cartridge and screw-in). Fuses must be carefully selected to match the amount of current that the circuit or appliance is expected to draw. Additionally, fuses are designed to not only limit current flow, but also protect from over-voltage or under-voltage.

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Part Number	Manufacturer	Price	Quantity	Description