
Tongyang Electronics is a edr ferrite core manufacturer that integrates edr 3909 ferrite core R& D, manufacture and sales. As one of Tongyang Electronics's multiple product series, ep bobbin series enjoy a relatively high recognition in the market. The product performance is reliable, durable, welcomed by users. It is frequently used in switch-mode power supplies. By providing the high quality of edr 3909 ferrite core, Tongyang strives to improvise the policy of the company. It is fairly inert when it comes to adverse environmental conditions and thus is suitable for outdoor installations.

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