VIIP V18031 NiZn Ferrite Toroid Core VN09 Material 850 Initial Permeability EMC EMI Magnetic Ring For Cable Noise Filtering RoHS Certified

1. Product Brief 

Crafted from VN09‑grade nickel‑zinc soft ferrite, the V18031 toroidal magnetic core delivers an initial permeability of 850 alongside a low loss coefficient. This ferrite component offers outstanding high‑frequency noise attenuation and effective EMI interference mitigation. Tight dimensional tolerances guarantee uniform performance across production lots for large‑scale assembling. Boasting great electrical resistivity and broad operating temperature scope, it maintains steady magnetic output in diverse working scenarios. As an RoHS‑certified EMC filtering part, it works to get rid of common‑mode and high‑frequency electromagnetic disturbance and assists finished units in clearing EMC qualification examinations. Samples, small trial lots and high‑volume shipments are available to satisfy demands ranging from R&D prototypes to full‑scale 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：

1. Suppress high‑frequency common‑mode interference for power cables, power cords and signal wires
2. Reduce electromagnetic crosstalk and signal distortion of internal wiring harness inside electronic devices
3. Help finished electronic products pass EMC, EMI related compliance tests
4. Filter electromagnetic noise for power supply, adapter and charger assemblies
5. Improve anti‑interference performance for industrial control panels and automation equipment circuits

4. FAQ

Q1: What factors will affect the filtering performance of ferrite magnetic rings? A: Multiple elements will influence actual filtering results, including material permeability, operating frequency, winding turns, cable matching and working temperature. To get ideal noise reduction effect, please select correct core model and adopt reasonable winding method according to your real‑use scenario.

Q2: What is your usual lead time for ferrite magnetic ring orders? A: For standard in‑stock magnetic ring models, lead time is about 3‑7 working days. For out‑of‑stock or large volume orders, production cycle will be 12‑20 working days. We will confirm exact delivery schedule with you after receiving your formal purchase requirement.

Q3: Can ferrite toroid cores be customized according to special requirements? A: We support certain customization services. Adjustments can cover special packaging, marking and packing ways. For custom dimension or special material formula, please offer your detailed technical parameters, our engineering team will evaluate feasibility for you.

Q4: How should we store ferrite magnetic rings for long‑term preservation? A: Please keep ferrite cores in dry and room‑temperature environment, avoid heavy moisture and violent mechanical impact. Ferrite material is brittle, collision may cause crack or chip damage, which will degrade magnetic performance. Proper storage helps maintain stable product quality.

Q5: What is the service life of ferrite magnetic ring under normal working conditions? A: Ferrite magnetic ring belongs to passive magnetic component. Under rated temperature and normal operating environment, it has no obvious aging problem and can serve long‑term. Performance failure mostly comes from physical cracking instead of material aging.