MF-RX300-2-99

Resistance - Initial (Ri) (Min):	40 mOhms
Approvals:	cURus, TUV
Lead Spacing:	0.402" (10.20mm)
Thickness (Max):	--
Height - Seated (Max):	1.181" (30.00mm)
Size / Dimension:	0.980" L x 0.122" W (24.90mm x 3.10mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	100 mOhms
Series:	Multifuse®, MF-RX
Time to Trip:	19.8s
Current - Trip (It):	6A
Current - Hold (Ih) (Max):	3A
Current - Max:	40A
Voltage - Max:	60V
Type:	Polymeric
Moisture Sensitivity Level (MSL):	--
Part Status:	Not For New Designs
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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PTC Resettable Fuses

PTC (Positive Temperature Coefficient) Resettable Fuses are unique overcurrent protection devices used to protect electro-mechanical systems & electronic circuits. They are a type of overcurrent protection system that consists of a PTC thermistor and an electric circuit connected in series. The PTC Resettable Fuses are used in a variety of applications ranging from consumer electronics to automotive applications.The MF-RX300-2-99 is a PTC Resettable Fuse designed for use in applications where fast response and reliable overcurrent protection is required. It is designed to automatically reset itself when the current through the PTC thermistor reaches a preset level. This current will then trigger a reset mechanism which will allow for the resuming of an uninterrupted power supply. The MF-RX300-2-99 has a wide range of applications, including consumer electronics, medical devices, industrial automation systems, and automotive applications. In consumer electronics, it can be used to protect the power lines of a laptop or smartphone, preventing damage to the device due to an overcurrent situation. In industrial automation systems, it can be used to protect the motor or actuator, protecting it from overcurrent conditions. In automotive applications, it can be used to protect the battery from overcharging conditions. The working principle of the MF-RX300-2-99 is based on the thermistor, which is composed of a semiconductor material which exhibits a positive temperature coefficient; when the temperature of the material rises due to an overcurrent situation, its electrical resistance also increases, thus limiting the current flow. When the current flow exceeds a certain predetermined level, a reset mechanism is triggered, allowing for the resumption of an uninterrupted power supply. The MF-RX300-2-99 has several advantages over other types of overcurrent protection devices. One of the main benefits is that it can be used with any type of circuit, providing reliable protection with a fast response time. Additionally, it is robust and reliable, providing uninterrupted power supply even in extreme conditions. It is also relatively inexpensive and easy to install, making it a cost-effective solution. In addition, it is RoHS compliant, making it suitable for use in environmentally sensitive applications. In conclusion, the MF-RX300-2-99 PTC Resettable Fuse is a reliable and cost-effective overcurrent protection solution. It is designed for use in a wide variety of applications ranging from consumer electronics to automotive applications. Its working principle is based on a PTC thermistor which exhibits a positive temperature coefficient, allowing for the reset mechanism to be triggered when the preset current level is exceeded. Its advantages include its wide range of applications, fast response time, robustness, and affordability.

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