TheLittelfuse Polyswitch is a resettable device that performs like a fuse under overcurrent conditions, but is unique in that it will reset. As soon as an overcurrent condition is reached the Polyswitch heats up to its trip temperature. * Trip current 0.5A * Trip time 2.5 sec * Hold current 0.25A * Max voltage 72V * Max current 40A * Radial leaded package * Initial resistance 1.25 to 1.95 * Post-trip resistance 3R * Lead pitch 5.1mm * Dimensions 7.4mm x 7.6mm x 12.7mm * UL and TUV approved Note: Previously manufactured by Raychem. https://elecena.pl/product/27216272/littlefuse-rxef025-0-25a-polyswitch-fuse 2024-11-10 https://elecena.pl/product/27216272/littlefuse-rxef025-0-25a-polyswitch-fuse 2025-03-22 https://elecena.pl/product/27216272/littlefuse-rxef025-0-25a-polyswitch-fuse 2025-05-21 https://elecena.pl/product/27216272/littlefuse-rxef025-0-25a-polyswitch-fuse 2025-06-27 https://elecena.pl/product/27216272/littlefuse-rxef025-0-25a-polyswitch-fuse 2025-07-17 https://elecena.pl/product/27216272/littlefuse-rxef025-0-25a-polyswitch-fuse 2025-09-16 https://elecena.pl/product/27216272/littlefuse-rxef025-0-25a-polyswitch-fuse 2026-04-08