MF-R250-0-010

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PTC resettable fuses were invented in the mid-1970s as a solution to the problem of using old-fashioned, one-time fuses which had to be physically replaced after tripping. PTC fuses are a type of self-resetting thermal fuse which can be used multiple times. The most common form of these resettable fuses is the surface-mount device, or SMD, type. The MF-R250-0-010 is one example of an SMD resettable fuse.

The MF-R250-0-010 is an SMD thermistor-based PTC resettable fuse. PTC devices have two operating states. Normally the thermistor is in a low resistance “on” state. When the current increases beyond a predetermined level, the PTC begins to heat up. This heat increase causes a self-induced shift in the electrical characteristic, thereby creating a high resistance “off” state. This allows the fuse to reset its own current, thus providing self-resetting capabilities.

The MF-R250-0-010 has several benefits. It is RoHS compliant, as well as UL listed and CSA approved for United States and Canadian markets. It also has low hold current (2.5A minimum), low trip current (250mA maximum) and fast trip time (15 milliseconds max). The device has a rated voltage of 10V and a steady-state resistance of 9.5 ohms. The thermistor is also suitable for automatic placement and provides improved field failure control.

The capability of the MF-R250-0-010 makes it well-suited for various applications. It can be used in consumer electronics devices such as televisions, computers, and mobile phones. Its self-resetting thermal fuse also makes it suitable for motor-powered tools, LED lights, and charger circuits. The device can also be used in automotive electronics systems for over-current protection.

In conclusion, the MF-R250-0-010 is a thermistor-based PTC resettable fuse- which can be used multiple times and is suitable for a variety of applications. It has RoHS compliance, UL listing, CSA approval, and low resistance ratings. The device can be used for over-current protection and is suitable for consumer electronics, motor-powered tools, LED lights, and charger circuits.

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