Toroidal inductors are commonly used in applications such as DC-DC converters, radio frequency antennas, filters, resonators, sensors, and magnetic storage, with an average weight of approximately 45g. This dataset includes primary raw materials, auxiliary materials, energy consumption, atmospheric emissions, and waste generated during the production process. Infrastructure such as manufacturing of production equipment and facility construction is excluded from the system boundary. The life cycle inventory is compiled from data derived from multiple sources. The production process of toroidal inductors involves winding, chamfering, stripping, testing, gluing, drying, soldering, impregnation, baking, retesting, angle correction, taping, and marking.