The Fair-Rite 3078990891 is a toroid core crafted from 78 material, specifically engineered for EMI suppression. Supreme Components International, an authorised distributor of Fair-Rite components, offers this high-quality ferrite core. Toroid cores are widely used in electronic circuits to filter noise and reduce electromagnetic interference. The 3078990891 provides excellent performance in a compact form factor. Its unique design allows for efficient magnetic flux containment, minimizing external interference. This component is suitable for a wide range of applications, including power supplies, filters, and inductors. Trust Supreme Components International for genuine Fair-Rite products and reliable service.