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Laird is a leading global supplier of products for EMI/EMC countermeasures such as chip beads, cable cores, common mode chokes, shieldings, and absorbers for use in wireless handsets, data devices, computers, automotive and military electronics.
Protecting electronics and enabling connectivity
Laird’s products are extremely light and small, with a wide portfolio of ferrite cores ranging from KHz to GHz. Their nickel-zinc ferrite parts are used extensively in the suppression of electromagnetic interference in the transmission, reception, and processing of electronic signals and data.
Laird's SPICE model powerfully predicts the real performance of ferrite bead in operation with its staggering accuracy. The tool allows Laird to lower design time and cost due to solving problems faster.
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Ferrite EMI suppressors
Ferrite materials exhibit varying magnetic properties depending on the frequency at which they are excited. In electronic applications, the relation of the magnetic loss to frequency is used to design the equivalent of bandpass filters, attenuating high-frequency interference, yet passing lower bands where data is carried. By changing the composition of ferrite, it is possible to enhance attenuation in selected frequency ranges.
Laird has developed a family of ferrites with varying compositions to allow the user to manage every type of application, from pulse transformers to ground fault interrupters.
Common mode chokes
Laird’s ferrite common mode chokes are designed for power and data line EMI filtering where high current, small size, or high-frequency performance is required. Laird has the industry's only true monolithic common mode chokes, able to provide EMI suppression on conductors such as PC board traces (tracks) and high-speed input/output circuitry (including network and storage subsystems).
Modern systems are frequently an interconnection of functional blocks and connections made by cables or wiring harnesses, presenting the opportunity for common mode current loops between devices where EMI can be a challenge. Common mode chokes filter common mode EMI currents without causing signal degradation or de-rating under high currents. Stable common mode chokes allow most signals to pass unaffected, yet filter the noise (EMI) from circuits.
With products in this range including wire-wound power common mode chokes, common mode chip beads, and multi-line arrays, Laird has the solution for your technical challenges.
Power inductors
Since ferrite inductors form a vital part of many tuning and filtering circuits, Laird offers a range with small footprints and durable build quality to meet the demands of any application. With high Q values and monolithic construction, Laird products deliver stable low-loss inductance over a wide range of frequencies. Ferrite inductors offer inductance tolerance rated at +10% of the specified frequency. The rated operating current is based on the maximum sustained current applied, while maintaining the specified minimum inductance (L).
LDP series - high current, duel connector SMD
The LDP series of shielded SMD power inductors improves performance and reliability for high speed (up to MHz level) and high current (up to 68 A) switch mode applications.
TYS series - low profile SMD
The TYS series features power inductors of very low profile and miniature size, offering design flexibility when space is a limiting factor. Inductance ranges from 0.5µH to 330µH.
Wireless charging modules
With Laird’s wireless charging modules, mobile devices can be charged smoothly and quickly without any cable, i.e. no unaesthetic cradles anymore. The core technology is based on the principle of inductive coupling by using a magnetic field. Wireless charging is an environmentally friendly product. It enables intelligent power management which optimises energy consumption, reduces heat dissipation as well as cooling measures, and minimises EMI. At the same time, it optimises charging efficiency/speed and reliability. These products can meet or satisfy popular wireless charging standards or requirements like WPC Qi or PMA.
Conventional ferrite design - conventional flat solid ferrite plates are typically used as the transmitting (TX) module in wireless charging applications, based on magnetic induction technology. For the receiving (RX) device, ultra-thin flexible ferrite sheets are usually preferred, due to weight, size, and shape restrictions.
3D shaped ferrite designs for wearables - TX modules with 3D shaped ferrite discs can significantly improve the charging performance: due to their special shape they concentrate the magnetic flux better, i.e. the transmitted energy is more directed towards the receiver. This increases charging efficiency (= speed) and reliability.
Within the Magnetics Products Technology Centre, we offer an array of services to help create customised solutions.
With the largest team of technical support specialists in Europe, we are at the forefront of a design led approach to delivering challenging and custom solutions for magnetic cores or components for production.
Whether your need is simple or complex, we can develop a solution to achieve your goals. With in- house experts we can design, develop and test prototypes that meet performance and environmental requirements of your application.
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Our approach
When it comes to developing custom solutions for tomorrow's technologies, we trust our approach to deliver the best possible outcome.
Our engineers will skilfully guide you through each stage of your project, working with you to understand and identify a solution that meets your technical and commercial needs before designing and integrating your solution.
