... widely used for overheat protection of Li-ion batteries, battery packs, power banks and Li-ion battery protection board, LED power driver, ... * Fluorescent ballasts * Transformers * Heating appliances * Portable electric tools Approvals: RoHS, UL, cUL, VDE, CQC. Function: This ... Motors, Lamp ballasts, Transformers, Battery packs, LED driver power, Power switches, Electric tools, and the fields of ...