Littelfuse 250S POLY-FUSE® Resettable PTCs are polymer-based, high-voltage radial devices suitable for protecting telephone equipment against lightning and power cross strikes. This series is fully compatible with telecommunications standards and is offered in horizontal and vertical surface-mount packages. Littelfuse 250S POLY-FUSE Resettable PTCs are designed for use in customer premises equipment, central office/telecom centers, LAN/WAN equipment, and access equipment.
