EMI ferrite disks and plates
- Technology
- Ferrite cores
- Partner
- Laird
Wherever EMI and active antennas disrupt the circuit board after the soldering process, Laird Steward ferrite disks and plates offer a simple, cost-effective solution.
The ferrite disks and plates can be utilised either as inductively coupled components or, as EMI shields on PCBs. The inductive coupling occurs when the ferrite affects the conducted waveform leaving the active component. The rise time of the waveform is effectively slowed by the ferrite. The overshoot and associated ringing are attenuated.
On PCBs, they can be placed directly on the EMI source, absorbing the radiated emissions at their core. This can help streamline your design and reduce overall material cost with maximum efficiency.
Range features
A high level overview of what this range offers
- Can be used to locate unwanted EMI antennas
- Flat flex and ribbon cables
- Each part for volume production is provided with permanent, double-sided 3.5 mil acrylic adhesive with 218 oz. adhesion
- Provides retrofit auxiliary EMI attenuation
- RoHS compliant
- Wide range of sizes
- Custom size available upon request
- High reliability and tight tolerance control
- Automotive-grade solutions
What’s in this range?
All the variants in the range and a comparison of what they offer
| Ferrite plate series | Dimensions (L x W x H min mm) | Material | Relative initial permeability | Adhesive tape | Temperature range |
|---|---|---|---|---|---|
HM | 20 x 20 x 1.27 | 28 | 650 | Yes | -40 to +125°C |
HP | 26 x 26.42 x 1.27 | 28 | 650 | Yes | -40 to +125°C |
33P | 53 x 50 x 1.10 | 33 | 2300 | No | -40 to +125°C |
MP | 8 x 8 x 1.10 | 28 | 650 | Yes | -40 to +125°C |
MM | 17 x 17 x 1.27 | 28 | 650 | Yes | -40 to +125°C |
29D | 5.0 x 25.2 x 3.18 | 29 | 700 | No | -40 to +160°C |
