Import Emc Common Mode Choke Cores — Buy in wholesale FOB from Supplier in China

The EMC Common Mode Choke Cores supplied by Long Line Electronic Company Limited are intended for electromagnetic interference suppression in switched‑mode power supplies. They provide a high initial permeability that can be adjusted between 20 000 and 160 000, and a high AL value that contributes to strong insertion loss across a wide frequency band. The cores are built to deliver effective noise reduction while occupying minimal board space. Their epoxy coating adds durability and protects against moisture ingress.

These choke cores are fabricated from ferrite material, a standard choice for high‑frequency magnetic components. The epoxy coating gives a low core loss, which is typical for ferrite cores designed for compact applications. Industry practice for similar cores includes dimensions around 12 mm × 12 mm × 6 mm and a weight near 5 g, allowing designers to keep overall device size low. Typical operating temperature ranges from - 40 °C to +125 °C, matching the requirements of most power electronics.

OEM manufacturers of power converters, contract assemblers, and test equipment producers commonly source these components to meet EMI standards. Buyers generally request FOB terms from the supplier’s Beijing facility and verify the minimum order quantity directly with Long Line Electronic Company Limited, as the listing does not disclose an MOQ. Payment conditions are negotiated per contract, and the supplier can provide custom core dimensions on request. The product is suitable for any design that needs reliable common‑mode noise attenuation.

Long Line Electronic Company Limited is located in Daxing District, Beijing, China, postal code 102600. The supplier is listed with a harbour trust tier, indicating that its business registration has been verified on the platform. No response rate is recorded in the data, which suggests that communication history is limited or not disclosed. The company focuses on electronic components, especially magnetic cores and related accessories, and can provide custom specifications on request.

The supplier’s profile does not mention any specific certifications, production capacity, or export experience, so buyers should confirm these details before placing an order. Communication can be initiated through the platform’s messaging system, and any technical queries should be directed to the engineering contact provided by the supplier. Long Line Electronic Company Limited offers its products from the Beijing facility, allowing buyers to assess logistics options such as FOB or CIF shipments from the nearby ports.