Ferroxcube's Beads-on-Wire are suitable for suppressing unwanted signals between parts on a PCB.

They consist of a suppression bead fixed on a length of wire and taped on a bandolier. The bandolier fits most commonly used automatic mounting machines.

Ferroxcube

Beads on Wire

Ferroxcube's Gapped SMD Beads are suitable for the POL concept. They are small inductors typically meant to serve as output inductor in buck / boost stages and feature state of the art power material 3C96.

Depending on the relative ripple current, switching frequencies up to 1MHz are possible to realise compact geometries. Saturation rated current goes up to 20A and the DC resistance is less than 1mΩ. They are available in 2 sizes (1812 and 3512), packed in tape on reel and they are SMD mountable.

Ferroxcube

Gapped SMD Beads

Multilayer Suppressors are a powerful solution for EMI/RFI attenuation in a variety of electronic equipment. When installed in series with signal and/or power circuits with high frequency noise is suppressed. There is no need for ground attenuation, which makes them suitable for circuits where this is difficult to achieve.

Typical suppression frequencies ranges from 10MHz to 1000MHz and rated currents are 0.1 and 6A.

Ferroxcube

Multilayer Suppressors

Ferroxcube's SMD Beads replace the well-known beads on wire in applications where SMD components are required.

They consist of a rectangular ferrite body and a length of flat copperwire, which is inserted through the ferrite and bent round to form two solder pads..

Ferroxcube

SMD Beads

Steward's two-terminal axial lead ferrite beads provide economical filtering for differential mode EMI suppression applications. Constructed using a continuous 22 gauge conductor, these devices are able to withstand high peak currents that can destroy other surface mount devices.

Applications

Filtering of power input pins of devices using high speed clocks

Filtering of low frequency input/output signals of shielded enclosures

High frequency filtering of medium speed clocks and video signals

Preventing oscillations in high frequency amplifiers

EMI filtration in power supplies

Steward

Axial Lead Ferrite Beads

Steward's surface mount ferrite chips provide compact, cost-effective EMI filtering for densely packed PCB designs. The small footprint enables placement very close to troublesome high frequency devices. Products include:

High frequency Chip Beads:- with broadband frequency response and provides significant levels of impedance from 100 MHz to greater than 1 GHz.

Low Frequency Chip Beads:- two terminal surface mount ferrites made using steward's low frequency material and provides performance optimised from 1 to 100 MHz.

High Current Chip Beads:- the highest current chip beads in the industry going up to 10 amps in a compact surface mount chip bead.

High Impedance Chip Beads:- a full range of chip beads with sizes from 0402 to 1806 and impedance values up to 2000 ohms.

Steward

Chip Beads

Steward's uniquely configured multi-aperture, multiple turn devices. For the most demanding applications, three turn configurations provide lossy impedance over 1,000 ohms. These parts offer excellent broadband frequency performance and current ratings of up to 7 amps.

Steward

Multi-Turn Axial Lead Ferrite Beads