IEC 61169-18:2011 is a sectional specification and provides information and rules for preparation of detail specification of SSMA series RF connectors together with the pro-forma blank detail specification. It also prescribes mating face dimensions for grade 1 high performance connectors, dimensional detail of grade 0 standard test connectors, gauging information and tests selected from IEC 61169-1 applicable to all detail specifications relating to SSMA series RF connectors. SSMA series connectors with characteristic impedance 50 ohm are used for millimeter wave applications, connecting with RF cables or micro strips. The operating frequency limit is up to 35 GHz. The coupling thread is 10-36 UNS thread. It indicates recommended performance characteristics to be considered when writing a detail specification and it covers test schedules and inspection requirements for assessment levels M and H. It cancels and replaces IEC/PAS 61169-18, published in 2009, of which it constitutes a minor revision. The only change between the PAS and this standard is the removal of inch dimensions for each of the figures.