MF-RX025/72-0

Resistance - Initial (Ri) (Min):	1 Ohms
Approvals:	cURus, TUV
Lead Spacing:	0.201" (5.10mm)
Thickness (Max):	--
Height - Seated (Max):	0.500" (12.70mm)
Size / Dimension:	0.291" Dia x 0.122" W (7.40mm x 3.10mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	3 Ohms
Series:	Multifuse®, MF-RX/72
Time to Trip:	2.5s
Current - Trip (It):	500mA
Current - Hold (Ih) (Max):	250mA
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 Resetable Fuses, as an important passage to control the overcurrent and overvoltage and protect the circuit and equipment, are widely used in various applications.MF-RX025/72-0 is one type of commonly used PTC Resetable Fuses. It is a negative-temperature-coefficient thermistor-based fuse, which is mainly composed of PTC thermistor and aluminum guard ring. It has the following characteristics: low power loss, low self-heating, good flame retardant properties, high temperature resistance, and good safety.The MF-RX025/72-0 PTC Resetable Fuse is applicable to IT equipment, LED lamp appliances, consumer electronic products, electrical appliances, power adapters, automotive, computer communication products and other equipment which require overcurrent protection.The working principle of MF-RX025/72-0 PTC Resetable Fuses is as follows. When the current is lower than the rated current, the fuse is in a closed state, and the electric energy can pass through it. During the overcurrent, the thermal protection element inside the fuse plays its role of cutting off the current. The temperature of the device rises due to the heat generated and the fuse element melts, and the fuse is disconnected, thereby playing the role of protecting the circuit. After the fuse is disconnected, the fuse element needs to cool down and restore the normal state before starting to work again.Moreover, MF-RX025/72-0 PTC Resetable Fuses can reset automatically with the aid of the temperature coefficient of the PTC thermistor, so it has the characteristics of overload protection and non-maintenance. When the thermal element automatically changed its characteristics, the fuse returned to a resumed state quickly, and the current restarted closing the underlying circuit. In addition, MF-RX025/72-0 PTC Resetable Fuses also feature an innovative design with excellent creep and leakage characteristics.In conclusion, MF-RX025/72-0 PTC Resetable Fuses are suitable for overcurrent protection in a variety of applications and are an ideal choice for anyone looking for reliable protection. They feature an innovative design, low power loss, excellent creep and leakage characteristics and easy resetting.

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