RXEF110-2

Resistance - Initial (Ri) (Min):	150 mOhms
Approvals:	CQC, CSA, TUV, UL
Lead Spacing:	0.199" (5.05mm)
Thickness (Max):	--
Height - Seated (Max):	0.689" (17.50mm)
Size / Dimension:	0.504" Dia x 0.118" W (12.80mm x 3.00mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	380 mOhms
Series:	PolySwitch®, RXEF
Time to Trip:	8.2s
Current - Trip (It):	2.2A
Current - Hold (Ih) (Max):	1.1A
Current - Max:	40A
Voltage - Max:	72V
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 is a class of overcurrent protection devices which have revolutionized the electronics industry. They function by physically melting and re-growing a PTC element after activating currents has reach a specified level. RXEF110-2 is a PTC resettable fuse, so let’s take a closer look at its application field and working principle. Application Field
RXEF110-2 is the advanced current device used for overcharge and overcurrent protection of mobile phone power supply systems. It is suitable for all series of mobile phone charger with voltage lower than DC 36 Vac or DC 24Vdc. It has a low resistance as compared to other solutions and can assist in power factor improvement. The RXEF110-2 has a wide range of applications, such as notebooks, tablet computers, digital products, digital cameras, LCD displays, Smart Home appliances, projectors, sensors, battery chargers, as well as mobile phone chargers and power supplies. Working Principle
As a PTC Resettable Fuse, the RXEF110-2 works by using a special thermally sensitive element attached to a trace on the board. This element: a Positive Temperature Coefficient (PTC) element, is designed to allow normal electrical current to pass imperceptibly until a specified overcurrent level is reached; when resistance increases quickly to very high value. This increase in heat causes the element to rapidly expand, mechanically breaking the circuit and preventing current flow. Once the circuit is broken and the downstream current has been reduced, the PTC element can begin the resetting process after the heatsink cools. Due to its short circuit protection capability, the RXEF110-2 has superior current limiting capabilities, which minimize the stress from overcurrent and has helped the electrical industry to safely create advanced designs. Benefits of PTC Resettable Fuse
Using the RXEF110-2 in your project brings several benefits. Firstly, the device will significantly decrease the risk of fire or explosions due to overcurrent and secondary hazards such as smoke. Moreover, PTC Resettable Fuses are more reliable than their counterparts, as they cannot be blown due to a large current flow. Finally, it requires no manual reset operation and does not require any external circuitry for resetting. This saves time and minimizes user interference, ensuring the highest level of safety and reliability. Conclusion
RXEF110-2 is an advanced PTC Resettable Fuse, which is suitable for mobile phone power supply systems, notebooks, tablet personal computers, digital products, digital cameras, LCD displays projectors, sensors, battery chargers and other electronic system applications. The device is capable of quickly detecting and limiting overcurrents, providing superior current limit protection and reducing the risk of damages and fires due to overload.

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