1. Product Brief

The V18031 toroidal ferrite magnetic core is built from VN09‑grade nickel‑zinc soft ferrite. Boasting 850 initial permeability and low loss coefficient, this component delivers excellent high‑frequency noise attenuation and EMI interference reduction. Tight dimensional tolerance maintains consistent performance across different batches, ideal for large‑scale assembly work. Thanks to high resistivity and broad temperature adaptability, it sustains reliable magnetic output under diverse working scenarios. As an RoHS‑approved EMC filtering part, it eliminates common‑mode and high‑frequency electromagnetic disturbance and assists finished goods in obtaining EMC certification. Samples, small trial lots and bulk shipments are offered to cover demands ranging from R&D prototyping to full‑volume manufacturing.

2. Product Description

V18031 toroidal ferrite magnetic ring adopts high‑quality VN09 nickel‑zinc soft ferrite raw material. Its initial permeability reaches 850, with low relative loss factor at 0.1MHz. The physical dimensions are A15.0mm, B14.0mm, C5.0mm, D23.0mm, dimension tolerance ±1.0 mm. High resistivity above 10⁵ Ω·m brings excellent insulation property. Curie temperature is over 130℃, so magnetic characteristics remain stable even when ambient temperature fluctuates. This ferrite toroid core can effectively suppress high‑frequency electromagnetic disturbance, restrain common‑mode noise on power lines and signal lines, reduce signal distortion and electromagnetic crosstalk. Uniform size facilitates winding processing and cable harness assembly. All products meet RoHS environmental requirements, suitable for global export end‑products. Strict incoming material inspection and finished‑product testing guarantee stable quality for every batch.

3. Application Scope & Usages

Application Scope: Widely used in consumer electronics, smart home devices, power adapters and chargers, industrial control equipment, automation devices, communication equipment, inverter and converter modules, office electronic hardware, wiring harness assemblies and other electronic products requiring EMC electromagnetic interference filtering. Usages: Suppress high‑frequency common‑mode interference for power cables, power cords and signal wires Reduce electromagnetic crosstalk and signal distortion of internal wiring harness inside electronic devices Help finished electronic products pass EMC, EMI related compliance tests Filter electromagnetic noise for power supply, adapter and charger assemblies Improve anti‑interference performance for industrial control panels and automation equipment circuits

4. FAQ

Q1: What core role does a ferrite magnetic ring play? A: Ferrite magnetic ring serves as a professional EMC and EMI filtering element. It mainly absorbs and weakens high‑frequency common‑mode electromagnetic noise, minimizes signal crosstalk and disturbances on power cords and signal lines. It boosts electronic devices anti‑interference capability and supports products to satisfy EMC certification standards.

Q2: How can I choose a suitable ferrite magnetic ring for my project? A: Major selection references contain core part number, material class, initial permeability, physical size, working frequency band and operating current. If you share details including working frequency, cable specification and actual interference status, we can provide targeted technical advice for core matching.

Q3: Can I get ferrite magnetic ring samples for performance check before bulk purchase? A: Sure, we provide sample units for function evaluation prior to mass orders. You may verify its noise reduction performance on your real equipment. Once sample performance gets confirmed, you can place small‑volume trial orders and large‑scale production orders accordingly.

Q4: What impact will Curie temperature exert on ferrite cores? A: Curie temperature stands for the threshold temperature where ferrite material loses its magnetic features. Higher Curie temperature enables the magnetic core to maintain steady filtering performance under elevated operating temperature. Our VN09‑material core features Curie temperature over 130 centigrade, well‑matched for most common electronic equipment operating conditions.

Q5: Are these ferrite magnetic toroids RoHS qualified for overseas export? A: Our ferrite magnetic toroids satisfy RoHS environmental standards. Hazardous substances are strictly controlled for both raw materials and finished goods. They are applicable for consumer electronics and industrial hardware sold worldwide. Related supporting documents can be supplied on your request.