The BLM18KG601SN1D is a Ferrite Beads module manufactured by Murata. It is designed for use in EMI/RFI filtering applications in power supplies and other circuits. The module consists of three Ferrite Beads sized 0603, with a resistance of 600 ohms each and a current rating of 1.3 amps. This module is especially designed for use in high-frequency environments, as the Ferrite Beads within the module act as a choke to high-frequency signals and can attenuate signal transmission. The module can be used to eliminate high frequency noise in a circuit and can help reduce electromagnetic interference. This module is rated at an operating temperature range of -40°C to +85°C.