Polymer PTC Resettable Fuse: Glossary Hold current (Ihold) The maximum steady state current at 23°C that can b e passed through Polymer PTC Resettable without causing it to trip. Trip current (Itrip) The minimum current that will cause Polymer PTC Resettable to trip at 23°C. Maximum voltage (Vmax) The maximum voltage that can safely be used to Polymer PTC Resettable Fuse. Maximum current (Imax) The maximum fault current that can safely be used to Polymer PTC Resettable Fuse. Power dissipation (Pd) The power dissipated when Polymer PTC Resettable Fuse in the tripped state. Maximum Initial Resistance (Ri max.) The maximum resistance of Polymer PTC Resettable in the initial state at 23℃. Minimum Initial Resistance ( Ri min.) The minimum resistance of Polymer PTC Resettable in initial state at 23℃. Post Trip R1 Maximum resistance of Polymer PTC Resettable Fuse after one hour it had been tripped. Time to trip (TtT) The time it takes for a Polymer PTC Resettable Fuse to switch to the trip state once a specific current has been applied. THINKING ELECTRONIC INDUSTRIAL CO., LTD. All specifications are subject to change without notice. 3 www.thinking.com.tw 2014.11