MF-RX160/72-2

PTC Resettable Fuses, commonly known as polymeric positive temperature coefficient (PPTC) resettable elements, are technologically advanced devices used to protect electronics from current surges in both AC and DC applications. In the past, other over-current protection solutions, such as thermal or magnetic fuses, were limited by their slow reaction time and inability to reset. PTC Resettable Fuses, however, are able to protect electronics with a known and reliable protection current and auto-reset after a surge is detected. The MF-RX160/72-2 is one such PTC Resettable Fuse that is widely used in the electronics industry for over-current protection.

The MF-RX160/72-2 is a thermal-based resettable device rated at 160V DC or 72V AC, with a maximum trip time of 10 seconds. It is designed for use in applications that require reliable over-current protection, such as telecommunications systems, motor control systems, power supplies, and solar energy systems. The device has a current rating of 8A and a hold current rating of 6.3A. The trip current is adjustable, with a range of 4 to 6A. This allows the user to customize the trip current for their particular system. The device also has a low resistance value of 0.08ohms maximum when in the open state. This allows it to provide reliable and accurate protection while using minimal energy and dissipating minimal heat.

One of the major advantages of the MF-RX160/72-2 is its unique working principle. The device is constructed from a material that exhibits a positive temperature coefficient. This means that when current flows through the device, its resistance increases as the temperature increases. When the device exceeds its specified current rating, the temperature rises quickly and the resistance increases to a point where the current is shut off. The device then cools down and the resistance drops, allowing the device to reset and the current to flow again. This enables the device to provide reliable over-current protection while still resetting itself after each surge, an improvement over other over-current protection solutions which often require manual resetting.

The MF-RX160/72-2 is also designed for easy installation. The device is compact in size, with dimensions of 32.6mm x 10.2mm x 6.4mm. It features two pins for easy connection; one pin for power and one pin for ground. It is also UL recognized, meaning that it conforms to the safety standards of Underwriters Laboratories Inc. This makes it suitable for use in demanding applications where safety is of paramount importance.

In summary, the MF-RX160/72-2 is a valuable addition to the range of PTC Resettable Fuses available for use in electronics applications. Its unique working principle ensures reliable over-current protection, while its small size, low resistance, and UL recognition make it suitable for use in a wide variety of applications. It is a highly effective yet economical solution for protecting circuits from over-current.