The SMD0603B025TF with PTC Resettable Fuses 0603 RoHS manufactured by Yageo is a surface mount positive temperature coefficient (PTC) protective device that is designed to protect electrical equipment from short circuits hazards. It features a very small size of 0603 (1.6 mm x 0.8 mm) and RoHS compliance. With current rating of 0.25A and voltage rating of 6V, the fuse can reset itself after the fault is cleared. This device can be used in various applications such as overcurrent, overload, and short circuit protection for portable electronics, power supplies, and other electronic equipment.