Bel Fuse is a global manufacturer and supplier of electromagnetic components and modules used in the telecommunications, datacom, consumer electronics, and automotive industries. Its products include cable assemblies, connectors, mid-size power transformers, switching regulators, current sensors, power supplies, protection products, protection circuits, variable inductors, high-frequency transformers, and circuit protection products. Bel Fuse is headquartered in Jersey City, NJ with offices in Europe, Asia, and Latin America. The 465621 part is a circuit protection product. It is a model 465621 PTC Resettable Fuse which is used to protect against current surges and is designed to stay in circuit until the surge reaches a specific level. It is typically used in consumer electronics and other protected applications. It has a trip current of 8A and a max voltage of 125VAC.