The Johanson RF inductor is a surface mount device (SMD) with a size of 0402 (1005 metric). It is an unshielded multilayer inductor with an inductance of 3 nH and a tolerance of 0.3 nH. The inductor has a height and width of 0.5 mm, making it suitable for compact electronic designs. It is a reliable component for RF applications, providing stable and efficient performance. The Johanson RF inductor is a versatile choice for various electronic projects and is widely used in the industry. Its small size and high-quality construction make it an excellent option for space-constrained applications.