RJS 1.5-R SHORT

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RJS 1.5-R SHORT Application Field and Working Principle

RJS 1.5-R SHORT are speciality fuses, specifically intended for the protection of electronic equipment such as automotive and radio/audio systems. The 1.5-R SHORT are commonly available in two sizes — Rated at 15 Amps or 7 Amps. It is designed to have a quick operating speed and is readily re-settable. It is UL listed and certified, and meets requirements for use in most electronic equipment applications.

Application Field

The 1.5-R SHORT is designed for use in a variety of electronic equipment applications. These include automotive, radio/audio systems, PCBs, relays, and battery protection. The 1.5-R SHORT has been specifically designed for an optimized response time to voltage and temperature transients, and to have an acceptable overload tolerance. In addition, the 1.5-R SHORT is designed for a maximum cycle life and maximum energy dissipation.

Working Principle

The 1.5-R SHORT fuse operates in two stages — electrical and thermal. The fuse is designed to quickly open in response to an overcurrent or voltage spike, in order to protect the electronic equipment. During the electrical stage, the fuse rapidly breaks the electrical circuit when the current reaches the set value. Afterwards, during the thermal stage, the fuse gradually dissipates heat until it cools and the circuit recommences. This thermal stageof the 1.5-R SHORT fuse allows for self-resetting, preventing the need for manual intervention.

The 1.5-R SHORT fuse is constructed from several components, including a fuse body, a cap, and a wire. Thecap is mounted to the fuse body with a crimped bar. The wire is coiled around the fuse body and secured in the cap. The 1.5-R SHORT fuse is made of a temperature resistant material, which allows it to tolerate high temperatures associated with overloading.

When there is abnormal electrical load, the current through the wire increases, causing it to heat up. Over time, the heat causes the fuse to over-expand, breaking the electrical connection. Once the electrical connection is broken, a secondary process is initiated where the fuse slowly releases its thermal energy and cools down. Once the fuse is cool enough, the circuit is restored and the excessively high electrical current is no longer present. This process repeats itself until the root cause of the abnormal load is addressed.

The 1.5-R SHORT fuse is designed to exceed the requirements for UL listing. These requirements include tests for interruption time, temperature rise, voltage drop, and cycle life. Each of these tests is conducted by UL to ensure the fuse meets the required safety standards for use in all electronic applications.

The 1.5-R SHORT fuse is an ideal protection solution for electronic equipment applications. It is UL certified and is designed to quickly interrupt an overcurrent or voltage spike, protecting the electronic equipment from potential damage. In addition, the 1.5-R SHORT fuse is easily re-settable and offers maximum cycle life and maximum energy dissipation. The 1.5-R SHORT fuse provides a reliable and cost effective solution for electronic applications.

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