PFLT.180

Resistance - Initial (Ri) (Min):	40 mOhms
Approvals:	CSA, TUV, UL
Lead Spacing:	--
Thickness (Max):	0.039" (1.00mm)
Height - Seated (Max):	--
Size / Dimension:	0.984" L x 0.199" W (25.00mm x 5.05mm)
Package / Case:	Strap
Mounting Type:	User Defined
Ratings:	--
Operating Temperature:	-45°C ~ 85°C
Resistance - Post Trip (R1) (Max):	120 mOhms
Series:	PFLT
Time to Trip:	2.9s
Current - Trip (It):	3.8A
Current - Hold (Ih) (Max):	1.8A
Current - Max:	100A
Voltage - Max:	24V
Type:	Polymeric
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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PTC Resettable Fuses

PTC (Positive Temperature Coefficient) resettable fuses are a type of electronic device designed to protect circuits from short-circuiting, over-currenting or other fault conditions. They are made up of an active element, typically a ceramic disc, which can be used in a wide range of applications, including communications, industrial, automotive, and consumer electronics.PTC fuses have some distinct advantages over traditional fuses. One of the most important is that they feature an automatic re-set. Most traditional fuses require manual intervention in order to reset them, while PTC fuses automatically reset on their own when the fault condition is cleared. This makes them more reliable and cost-effective in applications where manual resetting is not feasible.The PFLT.180 resettable fuse is one of the most widely used types of PTC fuses. It features an active element made of ceramic discs and has an operating temperature range of -40°C to +125°C. It is relatively small and is designed for use in consumer electronic circuits. It has a maximum current rating of 180 Amps and a 10V maximum surge voltage rating.The primary working principle behind PTC fuses is that they allow current to flow until it reaches a specified limit. Once this limit is reached, the ceramic discs inside the fuse start to heat up, creating a resistance that blocks current. This effectively stops any further current from passing through the circuit and so will protect the device from potential damage.The PFLT.180 resettable fuse is designed to be used in applications where manual resetting is difficult or impractical. It features a rapid and reliable response time, so it can be used in sensitive electronic equipment. As well as providing protection, the PFLT.180 fuse also acts as an indicator of a fault condition. If it trips, either due to an over-current or a voltage surge, a red LED built into the device lights up. This makes it much easier to identify and resolve a fault condition in an expedited manner.In summary, the PFLT.180 resettable fuse is an ideal choice for applications where a manually-resettable fuse is not practical. It is a reliable and cost-effective way to protect electronic circuits from a variety of fault conditions, while also providing an indication of the fault. Its small size, wide operating temperature range and a maximum current rating of 180 Amps position it as a popular fuse option for a variety of consumer electronics.

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