067406.5DRT4

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Fuses are devices intended to provide protection from short circuit conditions, overcurrents, and overloads. The 067406.5DRT4 device represents one type of fuse, which falls into the category of semiconductor fuses. This type of fuse is designed to provide protection for medium voltage, high current printed circuit board applications, and is ideal for circuit protection in aerospace, communication, and defense industries. Specifically, the 067406.5DRT4 device is designed to provide overcurrent protection for high threshold current densities greater than 9A/mm2.

The 067406.5DRT4 device is composed of a hermetically sealed, single-piece, glass-filled terminal encasing a precisely formed short segment of SuperTough™ rods. These rods are composed of a variety of highly current conductive materials that are known for their high level of electrical and geometrical consistency. The design of the 067406.5DRT4 device enables it to offer higher current protection than many (if not all) other fuse designs.

The working principle of the 067406.5DRT4 device is grounded upon the fuse material’s ability to instantly expand in the presence of an overcurrent. This expansion creates a small arc of several millimeters, which results in a high resistive temperature rise. The generated localized heat across the terminal block melts the fuse material quickly, effectively interrupting an overcurrent. The fuse design also minimizes disruption to an interconnected circuit and provides a more precise, repeatable trip performance.

In many applications, the 067406.5DRT4 device is used to safeguard medium voltage, high current printed circuit boards. In particular, the device is perfect for short circuit protection, since it provides a higher current threshold, and superior thermal protection. The device is also often used for overcurrent protection applications, in particular when a high current density threshold is needed. In addition, the 067406.5DRT4 device is also ideal for maintaining consistent electrical continuity in applications which process particularly sensitive signals or data. In any application, the device’s hermetically sealed construction helps ensure reliable, repeatable performance.

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