SRC Devices Industry unique flat bladed, square reed switches. Ideally suited for small signal to moderate load switching tasks. With sputtered ruthenium contacts and laser-sealed glass, the FR series reed switch from SRC Devices is one of the most reliable reed switches available today. In addition, our square glass and flat leads allow for seamless integration into a high speed, automated assembly process via our standard SMT configuration. SRC Devices reed switches are the only reed switches fully SMT compatible by design, with or without overmolding.