250R080DR

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PTC Resettable Fuses, also known as Polymeric Positive Temperature Coefficient (PPTC) devices, are a type of self-resetting fuses used primarily in consumer electronic products to provide overcurrent protection. These devices are designed to automatically open(break the electrical connection) when a short circuit, overcurrent, or over-temperature condition occurs, and then reset itself after the condition is corrected.

The 250R080DR PTC Resettable Fuse is a single pole, normally closed, bidirectional, time-delay fuse specifically designed to provide overcurrent protection for automotive applications. This device is available in both surface mount and through-hole packages, with voltage ratings ranging from 16V to 400V. The device is designed to open when the current exceeds its preset level for an extended period of time, and then reset itself automatically when the overcurrent or short circuit condition has been corrected.

The 250R080DR is capable of providing overcurrent protection up to 80A, and is capable of operating in temperatures ranging from -40 to 125°C. It also has a high arc voltage rating, making it suitable for use in applications that require a high level of surge protection.

The working principle of the 250R080DR PTC Resettable Fuse is relatively simple. When an overcurrent or short circuit condition occurs, the device heats up and melts the internal elements, opening the circuit to protect the system from damages. Once the condition is corrected, the device cools down and reset itself, allowing the current to flow through the circuit once again. This provides a safe and reliable means of protecting against overcurrent and short circuit scenarios.

In summary, the 250R080DR PTC Resettable Fuse provides reliable overcurrent protection for automotive applications and is capable of operating at temperatures from -40 to 125°C. The device has the ability to reset itself when the overcurrent or short circuit condition has been corrected, allowing the user to have peace of mind. The working principle of the fuse is simple, making it a viable option for numerous applications.

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