This part of IEC 61169, which is a Sectional Specification (SS), provides information and rules
for the preparation of Detail Specifications (DS) for pin and socket R.F. coaxial connectors,
with screw coupling mechanism, for low to medium power applications. The connector is
commonly known as the "type N".
Three versions of the 50 Ω characteristic impedance type N connector are included, each
version being mateable with each of the others.
The general purpose connector (grade 2) derived from the specifications MIL-C17B and MILC-
39012 may preferably be used with R.F. cable 60096 IEC 50-7 up to about 12 GHz
maximum frequency.
The high performance connector (grade 1) is particularly suitable for microwave applications
when lower reflection factors than are offered by the general purpose connector are required.
The connectors may also be suitable for microwave components. The tolerances of the
interface dimensions lie between those for grade 0 and grade 2, and are chosen to give the
performance required. Some grade 1 connectors conforming to this specification may be used
up to 18 GHz maximum frequency.
The standard test connector (grade 0) has a closely controlled interface to provide a
reference for the measurement of connectors, cable assemblies, components and equipment
with the above two interfaces. It may also be used as a microwave connector in situations
when the most precise interface for use up to 18 GHz maximum frequency is required.
A 75 Ω characteristic impedance connector is given in Annex A even though the use of 75 Ω
type N connectors is strongly deprecated.
Accidental cross-coupling of 75 Ω with 50 Ω connectors can destructively damage the 75 Ω
version, but in view of the extensive use of a number of marginally different 75 Ω versions, the
interface now given provides common design guidance. 75 Ω connectors should be clearly
identified.
This specification indicates the recommended performance characteristics to be considered
when writing a DS and covers test schedules and inspection requirements.
BS EN 61169-16:2007 Referenced Document
ISO 263:1973 ISO inch screw threads; General plan and selection for screws, bolts and nuts; Diameter range 0,06 to 6 in
BS EN 61169-16:2007 history
2007BS EN 61169-16:2007 Radio-frequency connectors. Sectional specification. RF coaxial connectors with inner diameter of outer conductor 7 mm (0, 276 in) with screw coupling. Characteristic impedance 50 ohms (75 ohms) (type N)
1997BS QC 222100:1997 Radio-frequency connectors - RF coaxial connectors with inner diameter of outer conductor 7 mm (0,276 in) with screw coupling - Characteristic impedance 50 ohms (75 ohms) (Type N)