MF-RX300-AP

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PTC resettable fuses are increasingly being used in a variety of applications. The MF-RX300-AP, manufactured by Meisho Fuse Corporation, is one such type. The MF-RX300-AP is a land grid array (LGA) resettable fuse to help protect overcurrent and short circuit. This particular fuse is designed for mobile applications such as smartphones, cameras, and other portable devices, as well as stationary applications such as power supplies, gaming consoles, and set-top boxes. Not only that, the MF-RX300-AP is a low cost, lightweight solution that is relatively simple to install. In terms of size, it measures 3 by 3.2 by 1.8mm.

The working principle of the MF-RX300-AP is based on a PTC heater element, which is connected in series with a power supply. When a current flows through the heater element, it turns into a resistor, preventing any further current flow. This helps to protect circuits and components from being damaged by excessive current or short circuits. In addition, when the current is removed, the heater element returns back to its original state, allowing the circuit to be reset and used again.

The MF-RX300-AP is designed to have a high current rating of 8 amps, making it suitable for use in a wide variety of applications. It also has a low leakage current of just 1.8 microamps and an operating temperature range of -40 to +85°C. To provide maximum protection, the fuse has integrated thermal shutoff and shadow safety functions. This helps to ensure that components are protected during a fault, even if the current overload exceeds the fuse’s rating. The fuse also has an overcurrent maximum trip time of 15 milliseconds.

In terms of applications, the MF-RX300-AP is ideal for use in mobile devices such as smartphones, tablets, and digital cameras that require circuit protection. Additionally, it is suitable for use in computers, set-top boxes, and gaming consoles, as well as for power supplies. The small size and low cost of this fuse make it an ideal choice for applications that require cost-effective circuit protection.

Overall, the MF-RX300-AP is a highly reliable and efficient PTC resettable fuse that is suitable for a wide variety of applications. By providing high current ratings, low leakage current and fast operating times, it is able to effectively protect circuits and components from damage due to excessive current or short circuits. Additionally, its small size and low cost make it a cost-effective solution for those looking for circuit protection.

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