UL TUV ROHS KLS5-JKseries of Polymer PTC self-resettable fuse (Polymer PTC Restoring Fuse) is a new-generation of overcurrent protection product, its function corresponds to the self-resettable and repeatedly-usable fuse, being used to protect circuit from damage by high current and having such superiorities as automatic reset, high security, short restoring time, fine performance of resistance to strong current as well as little volume. The products are classified into 10 major categories and nearly 100 specifications based on their rated operation voltage (Operating Voltage: 6v-600v), holding current (Holding Current:90mA-14A) and shape, they can be used in communication exchanger, main distributing frame, computer mouse, keyboard, micromotor, transformer, audio, battery and other electrical equipment as well as circuits, to play the role overcurrent protection. Appearance of Products：                             Electrical characteristics(25℃) Model Vmax (V) Imax (A) Ih (mA) Rmax (Ω) Rmin (Ω) Fig TYPE Maximum Contour Size （mm） A B C D JK250-060U 250 3 60 40.0 26.0 3 6.0 9.3 3.8 5.1 JK250-080U 250 3 80 22.0 14.0 3 6.0 9.3 3.8 5.1 JK250-090U 250 3 90 20.0 10.0 3 6.0 9.3 3.8 5.1 JK250-110U 250 3 110 12.0 6.0 4 6.5 10.0 3.8 5.1 JK250-120 250 3 120 10.0 5.0 1 5.5 5.5 2.6 5.1 JK250-120U 250 3 120 10.0 6.0 4 7.0 10.0 3.8 5.1 JK250-145uU 250 3 145 6.5 3.5 4 7.0 10.0 3.8 5.1 JK250-180T 250 10 180 2.2 1.0 3 10.2 14.5 3.4 5.1 JK250-180U 250 10 180 3.0 1.0 4 10.4 14.5 3.8 5.1 JK250-200U 250 10 200 6.0 3.0 2 10.5 17.0 3.8 5.1 JK250-400U 250 10 400 3.0 1.0 2 10.5 17.0 3.8 5.1 JK250-600U 250 10 600 2.0 0.6 2 16.0 18.0 4.5 5.1 JK250-800U 250 10 800 1.0 0.4 2 20.0 22.0 4.5 5.1