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Ferrite & EMI Materials — Formats We Deliver
Absorber sheets, NFC/RFID ferrite and die-cut formats — selected by frequency range, supplied with adhesive backing and custom outlines, ready for your PCB assembly.
EMI failures and detuned antennas are material problems. We supply ferrite sheets, EMI absorber sheets and magnetic films matched to your problem frequency — die-cut to your outline, laminated with adhesive, and delivered in the format your assembly process needs.
Absorber sheets, NFC/RFID ferrite and die-cut formats — selected by frequency range, supplied with adhesive backing and custom outlines, ready for your PCB assembly.
These issues typically appear at certification or pilot production — when a redesign hurts the most.
Radiated or conducted emissions found at the lab force late changes. A correctly placed absorber sheet often closes the gap without touching the PCB layout or the tooling.
On a metal housing or near a ground plane, antenna inductance collapses and read range disappears. The fix is a ferrite isolation layer with the right permeability at 13.56 MHz — not a bigger antenna.
Without the right magnetic back, the charging coil's field spreads into the device — wasting energy as heat and interfering with nearby circuits. Efficiency starts behind the coil.
Modern devices leave 0.05–0.3 mm for magnetic material. Sheet performance at that thickness — plus die-cut and adhesive quality — decides what actually fits your stack-up.
We start from your frequency, available thickness and housing material — then recommend the sheet.
MnZn ferrite for kHz-range wireless power, NiZn ferrite for 13.56 MHz NFC/RFID, and absorber sheets for MHz–GHz broadband noise suppression. The matrix below is the starting map.
Ferrite sheets that restore NFC/RFID performance on metal — sized and die-cut to your antenna geometry, with guidance on placement.
Ferrite sheets and coil-module backs that raise coupling efficiency, contain leakage flux and reduce device heating in Tx and Rx designs.
Thicknesses from ~0.05 mm, custom die-cutting, adhesive lamination, sheet or roll formats — sample support for your EMC lab validation.
A starting point for material selection — final choice always depends on your complete operating profile.
| Application | Recommended Material | Problem Frequency | Typical Thickness |
|---|---|---|---|
| Wireless charging | MnZn ferrite sheet | 100–300 kHz | 0.1–0.3 mm |
| NFC / RFID on-metal | NiZn ferrite sheet | 13.56 MHz | 0.05–0.2 mm |
| PCB EMI suppression | EMI absorber sheet | 10 MHz–6 GHz | 0.1–1.0 mm |
| RF module isolation | Ferrite / absorber sheet | GHz range | custom die-cut |
Everything below can be customized to your drawings and specifications.
You don't need a perfect specification to start. Send what you have — our engineers will fill the gaps with you.
Drawings or sketches — dimensions, tolerances, assembly context
Operating conditions — temperature, medium, vibration, duty cycle
Magnetic targets — grade, flux, holding force, or the problem to solve
Quantities — prototype, pilot run, or annual volume estimate
Compliance needs — RoHS/REACH, inspection reports, documentation level
Timeline — target dates for samples and production
Tell us your frequency range, available space and housing material — we respond within 24 hours.
Request a Technical Assessment → info@xakmag.com