SMPM to SMPM Assemblies Amphenol RF SMPM to SMPM Assemblies deliver DC to 20GHz RF performance in a micro-miniature, conformable cable. These straight plug to straight plug SMPM assemblies are designed to accommodate both radial and axial misalignment and support a push-on mating style for quick installation. The SMPM series is available with industry-standard diameters of 0.085' and 0.047'. Available lengths include a standard imperial range of 3' to 48' and a metric range of 100mm to 2000mm. Amphenol RF SMPM to SMPM Assemblies are ideal for miniaturized high-frequency / high-vibration applications, especially when mated with limited or full-detent PCB connectors.