agnetics® is a leading world supplier of precision soft magnetic components and materials to the electronics industry. We specialize in research, design and production of a broad range of high-quality powder cores, ferrite cores and tape wound cores for applications such as chokes, inductors, filter, transformers and power supply components for use in  alternative energy, telecommunications, aerospace, military, computer, medical and other electronics systems.

Magnetics is the only global supplier with development, design and manufacturing operations for three soft magnetic product types: powder cores, ferrite cores and strip wound cores.   This breadth of experience gives us the ability to respond to most magnetic product or application needs.

A recognized leader in quality and reliability, Magnetics’ products are manufactured to conform to international standards for electrical, dimensional and visual requirements.  In addition, Magnetics' products comply with global environmental initiatives.

To meet our global customers’ needs for ongoing production, we operate two manufacturing complexes: East Butler, Pennsylvania and Xiamen, China. From relatively small production runs to large-scale, ongoing, time-sensitive manufacturing, Magnetics has the flexibility and agility to deliver high-quality products at cost-effective rates.

With one of the largest Application Engineering staffs in the industry, Magnetics has expertise in developing innovative solutions for your application. Magnetics Application Engineering is a resource for technical knowledge and innovative thinking that can shorten your design cycle, move through prototype testing and deliver high-quality products that fill your specialized needs.

Magnetics® Powder Core products, Kool Mu®, MPP, High Flux and XFLUX® materials,  are distributed air gap cores that are primarily used in power inductor applications, specifically in switched-mode power supply (SMPS) output filters, also known as DC inductors.  Other power applications include differential inductors, boost inductors, buck inductors, and flyback transformers.  Notable characteristics of Magnetics’ powder core materials are high resistivity, low hysteresis and eddy current losses and excellent inductance stability under both DC and AC conditions.  In addition, Magnetics powder core materials are not pressed with an organic binder; therefore, there is no thermal aging.  Magnetics powder cores are available in a variety of shapes including toroids, E cores, U cores and blocks.

Magnetics® Soft Ferrite Cores are commonly referred to as manganese zinc ferrites.  They have a low coercivity and are also known as soft magnetic ferrites. Because of their comparatively low losses at high frequencies, they are extensively used in switched-mode power supply (SMPS) and radio frequency (RF) transformers and inductors.   Ferrite cores for the high frequency power supply and high quality communication markets are produced in a variety of shapes and sizes for inductors, pulse transformers, high frequency transformers, and noise filters.  Notable characteristics of Magnetics ferrite materials are high permeability, good temperature properties, and low disaccommodation.  Magnetics offers nine materials.   The materials range in permeability from 900µ to 10,000µ and are available in a variety of geometries including toroids, shapes and pot cores. 

Magnetics® Tape Wound Cores are often key components of complicated electronic circuitry found in high reliability applications including military, aerospace, communications, down hole drilling, and nuclear reactors. Tape wound cores and bobbin cores (miniature tape wound cores) are made from thin strips of high permeability nickel-iron alloys such as Square Orthonol®, Square Permalloy 80, Round Permalloy, Supermalloy, and 48 Alloy, or grain oriented silicon iron known as Magnesil®.  Supermendur, a cobalt-iron alloy is also available by special order.  Specific applications for tape wound cores include magnetic amplifiers (MagAmps), converter and inverter transformers, current transformers, and static magnetic devices. 

For more information on Magnetics and our products, please visit www.mag-inc.com.

Provided by Kimberly Holcombe,
Marketing Manager, Magnetics

In 2010, Micrometals acquired the Arnold Powder Core business unit from Arnold Magnetic Technologies.  Micrometals formed an autonomous division with this acquisition and renamed the group Micrometals Arnold Powder Cores.  This purchase added a second China factory, a sales and logistics office in Hong Kong and a greatly expanded selection of material options.

Primarily an engineering driven company, Micrometals is committed to supplying consistent high quality, low cost powder cores.  As new technologies emerge in the electronics industry, new shapes and materials are developed to meet the changing demands.

Micrometals cores are organized into 4 product groups; Radio Frequency, Power Conversion, 200C Series™ High Temperature and MicroCubes.  Micrometals Arnold Powder Cores are organized into 5 material groups; Super-MSS™ Sendust, Molypermalloy, FluxSan™, Hi-Flux™ and Optilloy™

Powder cores are made from discrete particles of ferromagnetic powder.  Prior to being formed into a core, the particles are covered in a thin layer of electrically insulated material to ensure electrical isolation of each particle.  The particles are then compacted under high pressure to form the core geometry.  The electrical insulation between particles enables the materials to be used at high frequency.  The insulation also forms a distributed air gap throughout the core material, giving the material the ability to maintain inductance linearity with a DC biasing field.  These soft magnetic products are most commonly used in inductor and choke applications.
Micrometals will gladly extend engineering and design assistance to aid in your core selection.  Please direct application questions to Applications@Micrometals.com.  Additional information and inductor design software is available to download at no charge from www.Micrometals.com and www.MicrometalsArnoldPowderCores.com. 

Questions about samples, price and availability of all products above can be directed to Sales@micrometals.com

Provided by Joseph Barbeito,
Director of Sales & Marketing,
Micrometals, Inc

Editors Note: We would like to feature your company in a future issue of the Update. Please contact the Association Office for information about how to submit an article for consideration.

If you or anyone in your company is interested in getting on the distribution list for future issues of PSMA UPDATE, please send e-mail to: power@psma.com. Be sure to include your name and the name of your company.