NANOSMDM075-2

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PTC resettable fuses, also called polymeric positive temperature coefficient (PPTC) resettable fuses, are self-resetting circuit protection components that protect electronic devices against overcurrents and short circuits. The NANOSMDM075-2 is a specific type of PTC resettable fuse that is widely used in a variety of applications. In this article, we will take a look at the NANOSMDM075-2\'s application field and working principle.

Application field

The NANOSMDM075-2 polymeric PTC resettable fuse is designed to protect boards, modules and cable sets against overcurrents and short circuits. It is the preferred solution for high-density PCBs with limited surface area for standard components. The NANOSMDM075-2 can be used on boards that have high levels of vibration, making it ideal for applications in vehicles and aerospace.

In addition to being used for automotive, communications, and industrial applications, the NANOSMDM075-2 can also be used in consumer electronics and small home appliances, providing enhanced protection and reliable current-limiting performance even in harsh conditions.

Working Principle

The working principle of the NANOSMDM075-2 PTC resettable fuse is based on the principle of a thermistor. When a short circuit or overcurrent occurs, the fuse triggers and the temperature of the thermistor increases rapidly. This temperature increase causes the resistance of the thermistor to increase rapidly as well, thus limiting the current flow.

When the current limiting is complete, the temperature drops and the resistance of the thermistor decreases gradually. This gradual decrease in resistance allows the current to return to a normal level, thus resetting the fuse and allowing the circuit to resume normal operation.

The NANOSMDM075-2 is designed to reset itself multiple times, without a decrease in performance. This ensures that even in the most extreme circumstances, the fuse will continue to provide reliable overcurrent protection.

Conclusion

The NANOSMDM075-2 PTC resettable fuse is a robust and reliable solution for a wide variety of applications. Its self-resetting abilities make it suitable for harsh conditions, while its small size allows it to be used on densely packed PCBs. By understanding its application field and working principle, it becomes clear why the NANOSMDM075-2 is such a popular choice in the industry.

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