B59890C0120A051 Circuit Protection

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PTC Resettable Fuses refer to components that are electronic in nature yet are used in parallel with a conventional fuse. These fuses combine the convenience of a normal circuit breaker with the protection of a regular fuse. They have two pins which are connected to the electrical circuit. The current rating of the fuse will depend on the selected PTC fuse, usually expressed in an amp rating or voltage rating. When they are overloaded or short circuited, they will open the circuit and break the current flow. However, once the current has stopped flowing, they will reset, allowing the circuit to be reconnected.

B99890C0120A051 is one type of PTC Resettable Fuse. It has RoHS compliant, which is a directive from the European Union which requires manufacturers and distributors to reduce the use of certain hazardous materials in the products they make and sell. It features an excellent surge resistance and has a voltage rating of 125VAC/200VDC. In addition, this PTC Resettable Fuse has a current rating of 10A and a breaking capacity of 1500Amp. It also has a maximum pressure contact resistance of 30m Ohm and is UL recognized under the component program. Furthermore, it is suitable for reliable protection in applications that require surge protection, such as lighting fixtures, electronic circuits, and motor controls.

The working principle of B99890C0120A051 is simple. It contains a PTC element that is composed of two leads which are insulated from each other. When the current flowing through the leads rises above the rating of the PTC elements, its resistance will increase rapidly. This will cause the current to stop flowing and the fuse will open the circuit. Once the current stops, then the PTC element will reset and allow the flow of current to once again pass through the circuit.

In summary, B99890C0120A051 is one type of PTC Resettable Fuse that offers reliable protection in applications that require surge protection. It features an excellent surge resistance, a voltage rating of 125VAC/200VDC, a current rating of 10A, and a breaking capacity of 1500Amp. Furthermore, its working principle is based on the PTC element which increases its resistance when the current rises above the rating, thereby stopping the flow of current and opening the circuit.

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