polyswitch

un fusible réarmable ctp (ctp = coefficient en température positif), ou fusible réarmable ptc (nommé en anglais polymeric positive temperature coefficient device (pptc) ou plus généralement polyfuse ou polyswitch) est un composant électronique passif utilisé pour protéger contre les défauts de surintensité dans les  a resettable fuse is a polymeric positive temperature coefficient (pptc) device that is a passive electronic component used to protect against overcurrent faults in electronic circuits. the device is also known as a polyfuse or polyswitch. they are similar in function to ptc thermistors in certain situations but operate on  littelfuse polyswitch and polyfuse devices are polymeric positive temperature coefficient (pptc) devices which offer a resettable overcurrent protection alternative, thereby reducing warranty, service and repair costs. ideal for situations where frequent overcurrent conditions occur or constant uptime is required, 

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polyswitch devices — polyswitch pptc devices provide resettable circuit protection . device types include: automotive, radialleaded, strap battery and surfacemount devices (smds). overvoltage protection. • gas discharge tubes (gdts) — lowcapacitance gdt devices help protect applications such as telecom and. rs, leader de la distribution en composants électroniques et fournitures industrielles. rs références disponibles en stock. rs propose une livraison express sous à jours. presentation fusible réarmables polyswitch de raychem pour remplacer vos fusibles classiques dans bien des cas.

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littelfuse polyswitch fusibles réarmables pptc sont disponibles chez mouser electronics. mouser propose le catalogue, la tarification et les fiches techniques pour littelfuse polyswitch fusibles réarmables pptc. any further increase in current or ambient temperature will cause the device to generate heat at a rate greater than the rate at which heat can be dissipated, thus causing the device to heat up rapidly. at this stage, a very large increase in resistance occurs for a very small change in temperature, between points and of  barry brents of te circuit protection walks you through the process of deciding between a polyswitch #eanf#

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