Magnetics® Kool Mu Hf® and Edge® high efficiency, low loss cores

Magnetics® Kool Mu Hf® and Edge® high efficiency, low loss cores

Posted December 21, 2021

Magnetics® Cores

Allstar is a proud distributor of Magnetics® products. We offer high-quality powder cores, ferrite cores and tape wound cores for applications such as chokes, inductors, filters, transformers and power supply components.  Magnetics now offers two new families of products with enhanced performance features - Kool for high frequency, and Edge for lower losses and improved DC bias. View information and stocking info below for Kool Mµ® Hƒ and Edge® powder cores.

Kool Mu® Hf Powder Cores

Kool Mµ® Hƒ powder cores are made from distributed gap alloy powder optimized for frequencies 200-500 kHz. Exhibiting approximately 35% lower losses when compared to Kool Mµ, Kool Mµ Hƒ is a cost-effective solution for minimizing power losses in high frequency power supplies using GaN or SiC, high efficiency power supplies, and Uninterruptible Power Supplies (UPS).

Edge® Powder Cores

Designed for cutting edge performance, Edge® cores offer the best DC bias of all alloy powder cores. When compared with High Flux, Edge displays approximately 40% lower losses and 30% improvement in DC bias. Applications include Rack Mount Power Supplies, Telecom Servers, Switching Regulator Inductors, In-Line Noise Filters, Flyback Transformers, Power Factor Correction (PFC), and Pulse Transformers. Choose Edge for highest efficiency.

Edge® and Kool Mu® Hf Property Curves

View Kool Mµ Hƒ® Material Property Curves in comparison with Edge® Cores, including DC Magnetization, Core Loss Density curves, and Permeability versus DC Bias curves.
Ceramic Round Base Magnet Assemblies

Ceramic Round Base Magnet Assemblies

Posted November 16, 2021

Round Base Cup Magnet Assemblies

Magnetic Assemblies are up to 32 times stronger than simple magnets by themselves.
Custom sizes, designs and coating are also available.

Product Description
1. Material: Steel cup + Ceramic ring magnet
2. Coating for steel cup: Chrome, Black Epoxy, Nickel, Zinc
3. Magnet surface lower than that of cup 0.005’’
4. Working temperature range: -40°C – 100°C
5. Packing box size: 15.0 x 10.6 x 6.3 Inches
6. We can customize the special size and coating per your requirement.
7. Pull force tested on flat steel plate ½” thick. If your steel is thinner, coated or the surface is rough or rusty, the pull force may vary. We recommend that you obtain a sample for testing.

Halbach Array Permanent Magnet Assemblies

Halbach Array Permanent Magnet Assemblies

Posted October 6, 2021

Halbach Array Permanent Magnet Assemblies

Allstar Magnetics can work with your team to design and manufacture Halbach arrays for your permanent magnet assembly needs.  Halbach arrays are an arrangement of permanent magnets that concentrates the field on one side of array and has a near zero field on the opposite side. This is achieved by alternating the polarity of the magnets and forcing the path of the flux lines on one side to combine and the opposite side to cancel each other out. These assemblies can be constructed in variety of different configurations such as linear, cylindrical, or circular.

   

Industry Applications

Linear applications include particle accelerators, free-electron lasers, linear motors, and any movement that requires planar motion. There are a variety of design that use cylindrical arrangements for higher power density and efficiency such as NMR, high torque motors and beam focusing applications. Halbach arrays can also be used to create gradient fields to channel electrons in medical and science applications.

Manufacturing Considerations

It is important to understand the required field, air gap, temperature at operation, life of the product, adhesive outgassing, magnet performance at both temperature, magnet performance in a magnetic field, mechanical constraints, tooling, allowable fringing, weight, size and budget.

Let us know how we can help with your custom magnetic needs.