FEMTOASMDC005F-2 Circuit Protection

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PTC resettable fuses, also known as Polymeric Positive Temperature Coefficient (PPTC) resettable fuses, are over current protection devices. They provide circuit designers a reliable feasible solution to current issues such as current overloads and short circuits, to prevent device destruction. The FEM TOASMDC005F-2 is part of PTC resettable fuses family. It has a wide range of application fields, such as consumer electronic product applications, portable device applications, automotive applications and battery powered device application.

The FEMTOASMDC005F-2 is a bidirectional, one-time programmable device that works on the “lever effect” principle. It has two transistor structures: an off state and an on state. When the current flows from the source to the drain, it triggers both transistor structures and initiates the fuse operation. The off state has a certain resistance, which prevents the current to flow. When the current exceeds the rated value, this resistance will suddenly jump up to a high value. As a result, the current will be diverted around the component, protecting any underlying connected components.

The FEMTOASMDC005F-2 has two major options: an adjustable switch and a reset switch. The adjustable switch has an adjustable trip current setting, which allows users to specify their own current overload settings. The reset switch can reset the fuse to its low resistance state when the current issue has been solved, allowing the electrical current to flow through again.The FEMTOASMDC005F-2 is particularly suitable for applications where an over-current protection solution is needed, such as in automotive, consumer and battery applications. As they can reset automatically after current issues have been solved, they are more reliable and cost-effective than traditional epoxy-coated fuses.

In conclusion, PTC resettable fuses, such as the FEMTOASMDC005F-2, provide both reliability and cost-efficiency for current protection solutions. With its adjustable switch and reset switch, it provides exceptional protection for all kinds of applications, from consumer electronics to automotive applications.

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