Jansum Electronics Dongguan Co., Ltd. is located in Changping Town, Dongguan City.  We are a company specializing in R&D, manufacturing and sales of Ethernet transformer, Telecom transformer, Choke coils, Inductors,Power transformer, Planar transformer, Chip Lan magnetics, xDSL/T1/E1 transformer, Solar inverter inductor, and other magnetic components. The products sell well at home and abroad, and are exported to Europe, America, Southeast Asia, Middle East, Australia and other markets, and provide OEM/ODM services for domestic and foreign customers. We have such a full range of products categories, stable performance, and cost-effective,  that we have received consistent praise from customers. Our products are widely used in network switches, routers, ADSL, optic modem, set-top boxes, TV, monitoring equipment, network players, smart home,solar power inverter, EV charging equipment and other industries.

Jansum Electronics adheres to the people-oriented, integrity-based, professional first, continuous innovation and harmonious development as a guide. Our mission is to provide comprehensive solutions and serialized products for customers, to become a trusted partner of customers, and to create a stage for employees to achieve personal value. Our Vision is to become the supplier of choice for magnetics components solutions. At the same time, we have been participating in social public welfare work and do our best to help those in need.