The AF4818H40A0T is a high-performance SMD fuse manufactured by AEM COMPONENTS. As an authorized distributor of AEM COMPONENTS, Supreme Components International guarantees the authenticity and quality of this product. This 4A, 400VAC/VDC fast-acting fuse is part of the 4818 Series, known for its reliability and compact design. It's specifically engineered for surface mount technology (SMD) applications, making it easy to integrate into modern electronic devices. The fast-acting characteristic ensures quick response to overcurrent events, protecting downstream components from damage. This fuse is suitable for various applications, including power supplies, battery chargers, and other sensitive electronic circuits. Its robust construction and precise specifications make it a dependable choice for circuit protection.