Datronix Holdings Limited, an investment holding company, manufactures and trades in electronic components. The company designs, manufactures, and sells magnetics that are used in consumer electronics, data processing appliances, and other electronics systems for coupling, isolation, filtering, interfacing, and timing control applications. It offers standard and customized magnetic components for various products, including transformers, LAN filter modules, digital delay modules, inductors/chokes, and ASDL transformers; planar magnetics; magnetics for aviation applications, hybrid network assemblies, power conversion, energy savings, medical devices/equipment, Internet equipment, and data acquisition/transmitter and signal conditioning; and magnetics components for DC/DC converters.

The company also trades in electronic components; and holds properties. It serves telecommunications, communications, instrumentation, industrial equipment, computers and networking, Internet equipment, medical devices/equipment, and automotive markets. The company sells its products under the Datatronics brand name.

It operates in the People's Republic of China, the United States, Vietnam, the European Union, and internationally. The company was incorporated in 2000 and is headquartered in North Point, Hong Kong. Datronix Holdings Limited is a subsidiary of Onboard Technology Limited.