The FAIR-RITE 5943001901 is a high-quality Toroid Core, crafted from #43 material and featuring an uncoated finish. Supreme Components International is an authorised distributor of FAIR-RITE electronic components, ensuring you receive a genuine product. This ferrite core is designed for a wide range of applications, including inductors, transformers, and noise filters. Its toroid shape provides excellent magnetic properties and minimizes electromagnetic interference. The #43 material offers a good balance of permeability and saturation flux density. Choose the 5943001901 for reliable performance and consistent results in your electronic designs. Benefit from Supreme Components International's commitment to quality and authenticity when sourcing your electronic components.