Overcurrent protection is crucial for all devices, and Littelfuse PTC fuses have the features and functionality to reliably protect your applications and their users. Find the ideal PTC fuse for your design.
In order to reliably use the technology we come into contact with every day, from our laptops at work and home to smart thermostats to medical devices that keep us in good health, these applications need to address overcurrent conditions to ensure user safety and to protect the device itself. If you’re designing smart technological devices people use on a day-to-day basis and need a dependable solution for overcurrent circuit protection, Littelfuse self-resettable PTC fuses are excellent options to consider. These design-flexible fuses are ideal for a number of applications and add protection to the technology we regularly use and rely on.
To ensure device and user protection, Littelfuse PTC fuses increase resistance as temperature increases. This process prevents unsafe levels of current in the device and minimizes fire and shock risk. With this functionality, the PTC fuses do not cut off current completely and instead allow constant safe levels of current to flow through the device. As such, the device will continue to operate except in extreme cases, in which case the fuse will cut off current flow completely. Once the temperature has fallen to safe levels, the PTC fuses automatically reset themselves.
These overcurrent protection devices are conveniently available in a number of forms and with various features, sizes, and capacities to meet the needs of your individual application. Their Surface Mount PTCs offer a very fast trip time along with a full range of compact footprints optimized for smaller designs. They are often used in notebook PCs, E-readers and game consoles, among other applications.
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Littelfuse also has the widest range of radial-leaded resettable fuses on the market, and these devices offer high hold current and a fast time-to-trip. They’re great for medical devices, security solutions and medical applications, to name a few. Finally, battery strap fuses feature a narrow low-profile design and a weldable band Nickel terminal and are good choices for mobile applications, ultra-thin portable electronics and more.
Littelfuse PTC fuses are made predominantly of high density polyethylene mixed with graphite. The typical short circuit rating is 40A, but for the battery strap PTCs, the value can reach 100A to offer protection in more demanding applications.
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PTC fuses work particularly well for a number of solutions. Because they reset automatically, Littelfuse PTC solutions are ideal for applications where overcurrent events occur often or where devices need to continue operating. Examples of such applications include tablet and notebook PCs, e-readers, USB peripherals, plug and play protection, battery packs, portable smart devices, telecom, and medical equipment protection applications.
Including Littelfuse PTC fuses in your design is advantageous for both you as a designer and your target customers. Resettable fuses allow for lower warranty and service costs because they don’t need to be replaced and operate so reliably, and they are the clear superior choice for applications where fuse replacement is difficult or even impossible.
관련 상품 참조
Overcurrent protection is crucial for all devices, and Littelfuse PTC fuses have the features and functionality to reliably protect your applications and their users. Find the ideal PTC fuse for your design – Littelfuse PTC solutions are available at Arrow today.
