TDK-Lambda (TDKラムダ株式会社) is a company that designs, manufactures, and sells power supplies for industrial equipment. It offers noise filters, linear, unit type, configurable, programmable, on-board, and PC board power supplies, power modules, bidirectional DC-DC converters, etc. The company caters to the telecommunications, data communications, medical facilities, railway and transport, automotive applications, and LED devices industries.