Polyfuse

Resettable Overcurrent Protection devices with various options: Fusible Switches and Panels Fusible Switches and Panels Provide a complete, one-piece solution for easy procurement and code compliance. PTCs are typically used in a wide variety of telecom, computer, consumer electronics, battery and medical electronics product applications where overcurrent events are common and automatic resettability desired.

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Designed to limit unsafe currents while allowing constant safe current levels, resistance will "reset" automatically when the fault is removed and temperature polyfkse to a safe levels.

Resettable fuse

The trip current is the current at which the device is guaranteed to polyfsue. If too much current is passed through the device the device will begin to heat. Chassis Comfort and Convenience Emissions.

If you decline, your information won't be tracked when you visit this website. Polyfuses were developed to replace the earlier nickel-chromium ni-chrome fuses. The dimension of each product is included within each data sheets on the following pages.

Low capacitance polymer base product for protecting high speed data circuit from ESD damage and maintaining data integrity. Resettable Overcurrent Protection devices with various options: They were also used as to permit programming of Programmable Array Logic.

Essential Performance and analytical technologies Functionality Targeting or advertising.

Low Resistance PTCs - POLY-FUSE® Resettable PTCs - Littelfuse

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January Learn how and when to remove this template message. Contact a Littelfuse application expert for design assistance polyfuwe visit www. Disclaimer Notice Littelfuse products are not designed for, and shall not be used for, any purpose including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of polyufse operation of the product may result in personal injury, death, or property damage other than those expressly set forth in applicable Littelfuse product documentation.

Resettable PTCs PolySwitch Devices - Littelfuse

If the overload current is to the left of the curve, the device will not operate. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless polyfuwe agreed by Littelfuse. PTCs hold and trip rating must be rerated when applied at conditions polyfise than room ambient. The device may not return to its original resistance value; it will most likely stabilize at a significantly higher resistance up to 4 times initial value.

To determine the opening time for the chosen device, locate the overload current on the X-axis of the appropriate T-C Curve and follow its line up to its intersection with the curve.

For detailed application assistance please visit our Application Design Center Site. Ambient temperature effects are polytuse addition to the normal rerating.

Magnetic sensing products utilizing Reed and Hall Effect technologies, with custom solutions available.

Check distributor stock levels by entering in full or partial part numbers Cancel. The application summary is for reference only.

Polyfuse (PROM)

From Wikipedia, polyyfuse free encyclopedia. To find out more about the cookies we use, see our Privacy Policy. Modern polyfuses consist of a siliced polysilicon line, which is also programmed by applying a voltage across the device. EC Circuit Protection of USB 2 0 This application brief demonstrates how to ensure reliable and safe circuit operation of USB products, protection against voltage and current transients must be carefully considered.

Fusible Switches and Panels Fusible Switches and Panels Provide a complete, one-piece solution for easy procurement and code polyfsue.

Littelfuse offers a comprehensive line of fuse blocks, fuse holders, and fuse accessories for automotive, electronic, and electrical polgfuse. Reliable standard and thermal protected varistor, available in a variety of forms, surge current capability up to 70, Amp.

The hold operating current rating for PTCs can be up to 14A, while the maximum level for fuses can exceed 30A. Reliable standard and thermal protected varistor, available in a variety of forms, surge current capability up to 70, Amp.

Products Automotive Sensors Automotive Sensors Littelfuse Automotive Sensor Products offer a wide range of sensors for use in monitoring various vehicular functions in the areas polyfise passenger safety, comfort and convenience plus vehicle powertrain, chassis and emission applications.

While cool, the polymer is in a crystalline state, with the carbon forced into the regions polfyuse crystals, forming many conductive chains. Please help improve this article by adding citations to reliable sources.

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