HVR250P180CF

Resistance - Initial (Ri) (Min):	800 mOhms
Approvals:	TUV
Lead Spacing:	0.217" (5.50mm)
Thickness (Max):	--
Height - Seated (Max):	0.520" (13.20mm)
Size / Dimension:	0.472" L x 0.201" W (12.00mm x 5.10mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	4 Ohms
Series:	POLY-FUSE®, HVR250
Time to Trip:	21s
Current - Trip (It):	650mA
Current - Hold (Ih) (Max):	180mA
Current - Max:	3A
Voltage - Max:	60V (250V Int)
Type:	Polymeric
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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PTC Resettable Fuses are one of the most important components in the electronic industry. They are mainly used to protect electronic devices from high voltage, currents and other forms of electrical transients. HVR250P180CF is a type of PTC Resettable Fuse designed to provide reliable, cost-effective protection of electronic equipment and connected systems. The HVR250P180CF is a PTC Resettable Fuse based on a polycure plastic housing and two flat faces. It has a dual function of over-current protection and self-resettable thermal protection. It is available in both in-line and surface mount package models.The HVR250P180CF PTC Resettable Fuse has a wide range of application fields, such as consumer electronics, computer products, medical devices, telecommunications products, LED lighting, and more. It can also be used for over-current protection of AC/DC power supplies, DC/DC converters, and other power systems.With its dual protection functions, the HVR250P180CF can safely and reliably prevent over-current overload and short-circuits in electronic circuits. It can automatically disconnect the circuits when the current exceeds the set limit. In the event of an overload, it is able to reset itself without user interference. This allows for more secure and continuous operations of electronic devices.The working principle of the HVR250P180CF PTC Resettable Fuse is based on two functions: over-current protection and self-resettable thermal protection.The over-current protection function is provided by a bimetal element. When a large current passes through the PTC fuse, an electric arc or spark is generated, which increases the temperature. The temperature increase is sensed by the bimetal element, which triggers the opening of the contacts, allowing the current to be disconnected from the circuit.The self-resettable thermal protection function is provided by an attached electro-thermal element. The electro-thermal element is heated when a large current passes through, which causes a spring mechanism to open the contacts and disconnect the current. When the current drops and the device is cool enough, the mechanical spring causes the contacts to close and allows the current to be reconnected to the circuit.The HVR250P180CF PTC Resettable Fuse is a reliable and cost-effective protection solution for a wide range of electronic devices and applications. It can safely and reliably protect the connected circuit from large current overloads and short-circuits caused by over-current and thermal transients. The combination of the over-current protection function and self-resettable thermal protection leads to more secure and continuous operations of the electronic device.

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