RXEF250

Resistance - Initial (Ri) (Min):	50 mOhms
Approvals:	CQC, CSA, TUV, UL
Lead Spacing:	0.400" (10.15mm)
Thickness (Max):	--
Height - Seated (Max):	1.000" (25.40mm)
Size / Dimension:	0.819" Dia x 0.118" W (20.80mm x 3.00mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	130 mOhms
Series:	PolySwitch®, RXEF
Time to Trip:	15.6s
Current - Trip (It):	5A
Current - Hold (Ih) (Max):	2.5A
Current - Max:	40A
Voltage - Max:	72V
Type:	Polymeric
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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PTC Resettable Fuses are increasingly being used in a variety of applications, providing a range of advantages over traditional fuses. The RXEF250 is a good example of a PTC Resettable Fuse, and has a wide range of applications. The RXEF250 is a medium-sized, 250mA PTC Resettable Fuse with a rated current of 250mA and a rated voltage of 12V. It is designed to protect against overloads, shorts, and other potentially dangerous conditions in a variety of applications. The primary features of the RXEF250 include high surge capability, fast response, and low resistance. The RXEF250 is commonly used in automotive applications, such as battery and starter motor protection, as well as in motor control and instrumentation applications. It is also suitable for use in medical, home appliance, backup power supplies, and industrial automation systems. The working principle of the RXEF250 is simple and efficient. When an overcurrent or overvoltage condition occurs, the fuse will trip and open the circuit. This prevents the current from increasing further and thus avoids damage to the equipment or system. When the overload or overvoltage condition resolves, the fuse automatically resets itself and the circuit is restored, allowing the current to flow normally again. In addition to its fast response time, the RXEF250 also has a high surge capability, which means that it can handle short-term high current or voltage conditions without tripping. This allows the fuse to protect against high voltage spikes and other conditions that would be too severe for traditional fuses. The low resistance of the RXEF250 also contributes to its energy savings, as it eliminates the need for a wiring harness or bulky fuse box. Finally, the RXEF250 is highly reliable and durable, with a long lifespan of up to 25,000 operations. This ensures that it can handle a variety of conditions without requiring frequent replacement, and helps to reduce overall maintenance costs. Overall, the RXEF250 is a well-designed PTC Resettable Fuse that is highly efficient and reliable. It is suitable for a wide range of automotive, motor control, and instrumentation applications, and has a high surge capability, fast response time, and low resistance. The RXEF250 is an excellent choice for those looking for a reliable and robust fuse that can handle a variety of conditions.

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