MF-RX135-0-99

Resistance - Initial (Ri) (Min):	120 mOhms
Approvals:	cURus, TUV
Lead Spacing:	0.201" (5.10mm)
Thickness (Max):	--
Height - Seated (Max):	0.718" (18.26mm)
Size / Dimension:	0.483" L x 0.122" W (12.26mm x 3.10mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	300 mOhms
Series:	Multifuse®, MF-RX
Time to Trip:	9.6s
Current - Trip (It):	2.7A
Current - Hold (Ih) (Max):	1.35A
Current - Max:	40A
Voltage - Max:	60V
Type:	Polymeric
Moisture Sensitivity Level (MSL):	--
Part Status:	Not For New Designs
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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PTC Resettable Fuses

PTC (positive temperature coefficient) resettable fuses, are specialized components designed to automatically protect electronic circuits from damage due to electrical overloads and short circuits. PTC resettable fuses are electrothermal in nature, meaning they operate through heating, triggered by the passage of excessive current through the fuse.The MF-RX135-0-99 is a PTC resettable fuse designed to protect circuitry against short circuits and overcurrent conditions. This fuse combines the protection of an overcurrent resettable fuse with the performance of a low-resistance PTC-resettable element, making it well suited for application across various voltage, current, temperature, and safety specifications.The PTC resettable fuse uses two dissimilar materials - an n-type and a p-type - which are connected in parallel. The n-type material is a polymeric, which is highly resistance to electric current at a normal temperature. The p-type material is a polymeric, which is highly resistant to electric current at a higher temperature. When an overcurrent or short circuit occurs, the polymers heat up, causing the resistance of the n-type material to decrease and the resistance of the p-type material to increase. This causes the movement of electrons between components, thus limiting the overcurrent or short circuit.The PTC resettable fuse has several advantages over other types of resettable fuses. The most notable of these is that this type of fuse can trip and reset multiple times without failure. This allows for improved protection against multiple short- and overcurrent events, reducing the risk of compromising the circuit\'s performance.The PTC resettable fuse also has a higher performance rating and a lower resistance than other types of resettable fuses. This allows for faster trip times, better protection against high-energy events, and improved circuit performance. Additionally, this type of fuse is highly reliable and can be used in a variety of environments, including those with high temperatures and humidity levels.The MF-RX135-0-99 PTC resettable fuse is a reliable and versatile solution for protecting electronic circuits against electrical overloads, as well as unintended short circuits. This fuse is an ideal choice for many applications, including industrial, automotive, consumer, and commercial systems.

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