B59673A0100B020

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PTC resettable fuses, also known as polymeric positive temperature coefficient devices, are devices that use a solid electrical conductor as an active element to protect electrical circuits against excessive current. The B59673A0100B020 is a type of polymeric resettable fuse, and they are commonly used to protect electrical systems from short-circuits, ground-level faults, overloading, and overvoltages. They offer superior protection due to their ability to reset and resume their normal operation after current disturbances.

The B59673A0100B020 is a single-pole, single-time delay resettable fuse with a very low trip current. It is suitable for use as overcurrent protection in low voltage DC applications, such as power adapters, battery chargers, and DC motor control units. The device has a low resistance value of 0.25 ohm and a low hold current of 1.1 A. The trip current is adjustable and can range from 0.3 A to 4.3 A.

The working principle of a PTC resettable fuse is fairly straightforward. When a current above the adjustable trip current passes through the device, a thermally activated pathway is opened. This activates a current disruption and a resistance is placed in the circuit to limit the maximum current. As the current falls below the set trip current, the thermally activated pathway deactivates and the resistance is gradually removed. The device is then back in its standby state and ready for use again.

One of the main advantages of PTC resettable fuses is their high cycling capability. This means that they can be reset many times after a short circuit without damage or degradation to the device. This makes them ideal for use in a variety of applications such as medical equipment, telecommunications, and consumer electronics. They are also highly reliable and provide superior protection for systems where the same location or part may experience repeated overloads.

Another advantage of PTC resettable fuses is their low cost. Compared to traditional fuse solutions, these devices reduce the cost of components and time-to-market. On top of that, they are extremely reliable and stable, and require no complicated installation process. Finally, they are highly durable and can be used in systems for many years without requiring replacement or maintenance.

In conclusion, the B59673A0100B020 is a high-performance PTC resettable fuse ideal for use in low voltage applications such as power adapters, battery chargers, and DC motor control systems. They offer superior protection and have a long-life span, making them a cost-effective solution. Because of their advantages, these devices are becoming increasingly popular in a variety of applications.

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