RUE185

PTC Resettable Fuses have garnered a lot of attention in the engineering industry, as they provide effective, reliable and safe current protection for loads and other systems. RUE185 is a resettable fuse specifically designed to protect high-power automotive applications, such as electric vehicles, hybrid cars and large battery packs. It puts pressure on manufacturers to create products that are reliable yet cost-effective, and the RUE185 fits the bill perfectly. This article will explore the technology and working principle of the RUE185 PTC resettable fuse applied in automotive applications. A PTC resettable fuse is a device that limits current by rapidly heating a nonmetallic component called a Positive Temperature Coefficient (PTC) element. This occurs when the conductive material in the element starts to thermally deteriorate and create a higher resistance in the wire. When the current flows through the device exceeds the designed rating, the PTC element heats up quickly and limits the current. Once the current stops or is below the rated value, the element cools down and the fuse can be used again without replacement.The RUE185 resettable fuse is designed to protect high-power automotive applications and is constructed using a unique PTC element combined with a special start-up resistor. The integrated design offers superior performance characteristics in comparison to conventional resettable fuses. The RUE185 is rated up to 120A with a trip current of 90A. At the trip level, it has extremely fast action, meaning it can protect against power surges and short-term overloads. The RUE185 utilizes a design that is particularly well suited for automotive applications. It incorporates a start-up resistor to provide a rapid response time to over-current events. Additionally, the integrated resistor can extend the device lifetime by improving temperature cycling behavior, making it more reliable in harsh environments. The entire PTC element is encapsulated with a high temperature epoxy that keeps dirt and debris out, which in turn helps to protect against corrosion.The RUE185 has excellent surge protection capabilities, providing ultimate protection against transient voltage. This is achieved through the device’s low trip current and elimination of quenching time. The fuse is compatible with multiple fuseholders and can be used in various automotive applications such as engine control units, power management systems and more. To conclude, the RUE185 PTC Resettable Fuse provides effective and reliable protection of high-power automotive applications due to its advanced design and superior performance. These advantages make the RUE185 an essential component for any system that requires current protection in case of over-usage.

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