The 12M-49SMD-SR is part of the SR Passives SMD Series of wrap-around inductors, which are designed for high-frequency applications and feature general grade, high-frequency grade, and UHF. The 12M-49SMD-SR is a very small SMD inductor matrix with 4x4x2mm pin size and 4.9mm height. It is made of ferrite cores and silver palladium alloy leads, with RoHS compliant and halogen-free construction. It provides inductance values of 0.27-330nH in its standard range, and can provide up to 470mH for long-term use. This part is a molded SMD (SMC) inductor, making it suitable for SMD circuit boards and other high-density electronics applications.