LVR033K-2

Resistance - Initial (Ri) (Min):	770 mOhms
Approvals:	CQC, CSA, TUV, UL
Lead Spacing:	0.200" (5.08mm)
Thickness (Max):	--
Height - Seated (Max):	0.748" (19.00mm)
Size / Dimension:	0.449" L x 0.150" W (11.40mm x 3.80mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-20°C ~ 85°C
Resistance - Post Trip (R1) (Max):	2.6 Ohms
Series:	PolySwitch®, LVR
Time to Trip:	21s
Current - Trip (It):	740mA
Current - Hold (Ih) (Max):	330mA
Current - Max:	4.5A
Voltage - Max:	240V (265V Int)
Type:	Polymeric
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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PTC Resettable Fuses
PTC resettable fuses, also known as polyfuses, are electrical components which are designed to protect electronic devices from dangerous over-current spikes and faults. They function in the same way as circuit breakers, except that they can be reset after a fault, allowing the circuit to continue operation without having to physically replace the fuse element.The LVR033K-2 is a type of PTC resettable fuse which is becoming increasingly popular in a wide range of applicationsApplication Field
The LVR033K-2 PTC Resettable Fuse is widely used in consumer, industrial, and even medical applications. Due to its reliable design and its compatibility with low-voltage electrical systems, it is used in a variety of devices, including: computers, cell phones, gaming consoles, LCD televisions, medical equipment, and many forms of lighting fixtures. It is also often used in circuit boards and other electronic devices.Working Principle
In general, PTC Resettable Fuses, such as the LVR033K-2, work in the same way as traditional mechanical fuses. In the event of an overload, they will cause the circuit to trip, interrupting power to the device. However, the major difference with this type of fuse is that it can be reset after the fault has been cleared, allowing the circuit to continue to function.The LVR033K-2 fuse is designed with a semiconductor polymer which will increase its resistance when a certain amperage is exceeded. This increase in resistance causes the circuit to trip, and the device will be shut off until the fault is cleared. Once the amperage is reduced to a safe level, the fuse can be reset, allowing the circuit to continue to operate. This design allows the fuse to protect the device while still allowing for easy resetting and maximum protection.Conclusion
The LVR033K-2 PTC Resettable Fuse is a versatile device which is becoming increasingly popular in a variety of applications. Its ability to quickly react and shut off power when a fault is detected, while still providing the ability to be reset, ensures that it can protect devices from dangerous overloads. By using this type of fuse, electricians and engineers can be sure that the circuit and device will be protected, while providing the ease of resetting the fuse after the fault is cleared.

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Part Number	Manufacturer	Price	Quantity	Description