Resistance - Initial (Ri) (Min):	316 mOhms
Approvals:	CQC, CSA, TUV, UL
Lead Spacing:	0.200" (5.08mm)
Thickness (Max):	--
Height - Seated (Max):	0.921" (23.40mm)
Size / Dimension:	0.450" L x 0.189" W (11.43mm x 4.80mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-20°C ~ 85°C
Resistance - Post Trip (R1) (Max):	839 mOhms
Series:	PolySwitch®, LVR
Time to Trip:	18s
Current - Trip (It):	1.5A
Current - Hold (Ih) (Max):	750mA
Current - Max:	7.5A
Voltage - Max:	240V (265V Int)
Type:	Polymeric
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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PTC Resettable Fuses: LVR075S Application Field and Working Principle

PTC (positive temperature coefficient) resettable fuses are a kind of thermal- and over-current-sensitive devices designed mainly for electric overcurrent protection. The LVR075S resettable fuse is a form of PTC that has been widely adopted and used in many power and electronics applications. This article will examine the application field and working principle of the LVR075S resettable fuse.The main application field for the LVR075S resettable fuse is the protection of variable power sources that supply electrical power to computers or other electronic devices. It is often used in power supplies, portable consumer electronics, notebook computers, laptops, cell phones, digital cameras, and other consumer electronics. Its low hold-up current and fast time-to-trip features make it ideal for protecting sensitive electronic circuits from dangerous over-current events.The LVR075S resettable fuse is designed to be a convenient and compact solution for many types of over-current protection. It contains a small metal-oxide-semiconductor (MOS) chip that is designed to handle over-current events. When the current passing through the LVR075S reaches a certain level, the MOS chip begins to heat up, increasing its resistance and resulting in a reduction of the current flowing through the device.Once the over-current event passes, the LVR075S cools down and its resistance returns to the original level. The device can be reset either by manually pressing a reset button or by allowing the MOS chip to cool off and reset itself. The LVR075S is also designed to be self-healing—in other words, if it is exposed to multiple over-current events, it will reset itself rather than remaining in a permanently damaged state.The LVR075S resettable fuse has a number of attractive characteristics, including its high self-healing capacity, its low price, and its compact size. It is also designed for low power consumption, making it ideal for use in applications where space and power are limited. Finally, the device is also designed to be shock-resistant, which makes it suitable for use in harsh environments.In summary, the LVR075S resettable fuse is a reliable and cost-effective solution for applications that require low-cost over-current protection. Its MOS chip can quickly respond to over-current events and reset itself after the event passes. Its small size, low power consumption, and shock-resistance make it an ideal choice for a wide variety of applications.

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