The 4077292011 is a high-quality Toroid Core manufactured by Fair-Rite, a leading name in ferrite technology. This core is made from Fair-Rite's popular 77 material, known for its excellent performance characteristics in a wide range of frequencies. Toroid cores are commonly used in inductors, transformers, and chokes due to their efficient magnetic flux containment and minimal electromagnetic interference. Supreme Components International is an authorised distributor of Fair-Rite components, ensuring that you receive genuine products with full traceability. This toroid core is perfect for applications requiring high inductance, low core loss, and compact size. Benefit from our competitive pricing and fast shipping on all Fair-Rite products. Choose Supreme Components International for all your electronic component needs.