RXEF050S-0.236

Time to Trip:	4s
Approvals:	CQC, CSA, TUV, UL
Lead Spacing:	0.199" (5.05mm)
Thickness (Max):	--
Size / Dimension:	0.311" Dia x 0.120" W (7.90mm x 3.00mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	1.17 Ohms
Resistance - Initial (Ri) (Min):	500 mOhms
Series:	PolySwitch®, RXEF
Current - Trip (It):	1A
Current - Hold (Ih) (Max):	500mA
Current - Max:	40A
Voltage - Max:	72V
Type:	Polymeric
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction to PTC Resettable Fuses

PTC Resettable Fuses, also known as PolySwitch, Polyfuse, positive temperature coefficient resettable fuse, or polyfuse device, are an important global protection device used to protect electrical systems. This type of fusible device is widely used mainly in consumer, industrial and automotive circuits. PTC resettable fuses are essentially a varistor-type device that is essentially two layers of semiconductor material that acts as a resistor. As the current passing through it rises above the holding current, it rapidly increases its resistance from a very low value to a very high value, hence limiting the current across a circuit or component.

RXEF050S-0.236 Application Field and Working Principle

RXEF050S-0.236 is a PTC resettable fuse with dimensions 27.6mm x 12.2mm (or 1.09" x 0.48"). It is a 3-terminal device which comes standard in an RoHS-compliant packaging, and has a current rating of 0.236A and a voltage rating of 6VAC/DC. It is widely used to provide circuit protection in consumer, industrial and automotive applications.The working principle of the RXEF050S-0.236 is as follows: when the current passing through it increases above the holding current, the resistance of the device increases rapidly from a low value to a very high level, thus limiting the current across the circuit or component connected to it. When the current reduces below the holding current, the resistance of the device decreases back to its initial state, thus allowing normal current flow. This feature of the RXEF050S-0.236 makes it a reliable protection device in various applications.The RXEF050S-0.236 is a highly reliable and robust device, and is typically used to provide protection against overvoltage and overcurrent conditions in electrical circuits. It can also be used in Automotive/MIS and consumer applications, where reliable protection and low cost are required. And since its fusing properties are not temperature dependent, the device can be used to protect from overcurrent or surge events at various temperatures.

Advantages of Using RXEF050S-0.236

The RXEF050S-0.236 offers a unique set of advantages for a wide range of applications. Firstly, it is one of the most cost-effective solutions for circuit overvoltage and overcurrent protection. This is because it does not require a soldering process and can be easily mounted on a circuit board or connected to a wire. Furthermore, its high reliability and robustness make it suitable for Automotive and other high-temperature applications. Additionally, the device is RoHS compliant and is offered in standard package dimensions, making it easy to use.Moreover, its excellent surge capability and fast response time means that the RXEF050S-0.236 can provide reliable overcurrent and overvoltage protection across varying temperatures. Furthermore, its reset voltage is specifically designed to be higher than the rated voltage, meaning that the device remains in an open circuit and stays in a reset state, even if the circuit is inadvertently subjected to higher than rated voltages. This helps maximize circuit protection, by preventing any further damage to the components.

Conclusion

In summary, the RXEF050S-0.236 PTC resettable fuse is an ideal overvoltage and overcurrent protection device for a wide range of applications. It is a highly reliable and robust device with excellent surge capability and a fast response time, making it highly suitable for applications in the automotive and consumer industries. The device is RoHS compliant, available in standard package dimensions, and provides efficient circuit protection across varying temperatures. All this, combined with its cost effectiveness, makes the RXEF050S-0.236 an excellent choice for circuit protection.

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