IEC 61169-15-2021 pdf Radio-frequency connectors – Part 15: Sectional specification – RF coaxial connectors with inner diameter of outer conductor 4,13 mm (0,163 in) with threaded coupling – Characteristic impedance 50 Ω (type SMA)

1 Scope This part of IEC 61169, which is a sectional specification (SS), provides information and rules for the preparation of detail specifications (DS) for RF coaxial connectors with inner diameter of outer conductor 4,13 mm (0,163 in) with threaded coupling with a characteristic impedance of 50 Ω (type SMA). This document specifies mating face dimensions for high performance connectors – grade 1, dimensional details of standard test connectors – grade 0, gauging information and tests selected from IEC 61169-1, applicable to all detail specifications relating to series SMA RF connectors. This document 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. The SMA types RF coaxial connectors are used with all kinds of RF cables and microstrips in microwave transmission systems. The operating frequency is up to 18 GHz. These connectors can be intermated with 3,5 mm (IEEE 287-2007) and 2,92 mm (IEC 61169-35) connectors. NOTE Metric dimensions are original dimensions. All undimensioned pictorial configurations are for reference purpose only. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 61169-1:2013, Radio frequency connectors – Part 1: Generic specification – General requirements and measuring methods IEC 62153-4-7:2015, Metallic communication cable test methods – Part 4-7: Electromagnetic compatibility (EMC) – Test method for measuring of transfer impedance Z and screening T attenuation a or coupling attenuation a c of connectors and assemblies up to and above s 3 GHz – Triaxial tube in tube method
The test procedure is as follows: a) Sizing test The gauge A shall be inserted into the socket-centre contact three times. This is a sizing operation and should only be carried out when the socket-centre contact is removed from the connector. b) Insertion test Following the sizing operation, and if required in the detail specification, the force necessary to insert gauge B fully into the socket-centre contact shall be measured. When this test is required, the maximum permitted insertion force shall then be specified and shall not exceed 13,3 N. c) Retention test After the sizing test, the gauge B shall be inserted into socket-centre contact. The contact shall retain the mass of the gauge B in a vertical downward position.