SMPM Bullet Adapters Johnson / Cinch Connectivity Solutions SMPM Bullet Adapters are multi-functional, high-frequency, push-on adapters and are suitable for use in a variety of applications. SMPM adapters offer excellent performance and reliability in extreme shock and vibration conditions. The series has a 65GHz maximum frequency and 50Ω impedance. The adapters have a 1.15 maximum to 18GHz, 1.25 maximum to 40GHz, and 1.45 maximum to 65GHz VSWR. Johnson / Cinch Connectivity Solutions SMPM Bullet Adapters applications include test equipment and racked electronics.