1. Product Brief

Manufactured with VN09 grade nickel‑zinc soft ferrite, the V18031 ring‑shaped ferrite core features an initial permeability of 850 and low loss performance. It achieves remarkable high‑frequency noise damping and electromagnetic interference mitigation effects. Rigorous size control ensures uniform performance from batch to batch, perfectly fitting mass production assembly operations. Featuring superior resistivity and great thermal tolerance, this core keeps dependable magnetic performance under varied operating environments. This RoHS‑compliant EMC filter component cuts down common‑mode and high‑frequency electromagnetic interference, helping end‑use products fulfill EMC certification requirements. We deliver prototype samples, small batch orders and large‑volume goods to meet client needs from research validation to commercial mass‑production.

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: Do ferrite magnetic rings require polarity installation during assembly?
A: Ferrite magnetic rings are passive magnetic components with no positive or negative polarity. There is no strict direction requirement when sleeving onto cables. You can install it according to your structural layout, while please avoid physical collision to prevent core cracking.

Q2: Why can’t I get ideal noise reduction even after installing ferrite magnetic rings?
A: Poor filtering effect may result from mismatched core material, improper installation position, insufficient winding turns or wrong frequency matching. You can share your test phenomenon and working parameters, and our technical team will offer targeted optimization suggestions.

Q3: Can ferrite magnetic rings be used in high‑humidity working environments?
A: Standard ferrite magnetic rings can work under normal humid conditions. Long‑term heavy damp environment should be avoided, as continuous moisture may affect surface auxiliary accessories. No extra surface coating is needed for general indoor electronic device applications.

Q4: What is the delivery time for custom ferrite magnetic ring orders?
A: For non‑standard customized projects including special material formula or modified dimensions, the production cycle is around 15‑25 working days. We will evaluate project feasibility and confirm exact lead time for you after receiving your detailed technical specifications.

Q5: How do you guarantee the quality consistency of mass‑produced ferrite magnetic rings?
A: We carry out raw material inspection, in‑process spot‑check and finished‑product random testing for each batch. Key parameters including dimension, initial permeability and loss factor will be sampled and verified, to keep stable performance for bulk delivered magnetic rings.