IEC 61169-69:2024

Radio-frequency connectors - Part 69: Sectional specification for RF coaxial connectors with push on mating - Characteristic impedance 50 Ω (type SMP3)

IEC 61169-69:2024, which is a sectional specification (SS), provides information and rules for the preparation of detail specifications (DS) for RF coaxial connectors with push-on coupling, typically for use in 50 Ω RF cables or micro-strips in microwave, telecommunication, wireless systems, and other fields (SMP3).
It specifies mating face dimensions for general purpose connectors – grade 2, 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 SMP3 RF connectors.
This specification 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 SMP3 push-on coupling structure series RF coaxial connectors with the characteristic of normative impedance 50 Ω are used with various kinds of RF cables or micro-strips in microwave, telecommunication, wireless systems, and other fields. The operating frequency limit is up to 65 GHz.
NOTE Imperial dimensions are the original dimensions since this is a very miniature RF connector. There is a concern that conversion to the metric system could lead to rounding errors which can lead to performance degradation from the original imperial design. The SMPM connector was released as an imperial design for this reason. All undimensioned pictorial information is for reference only.

Connecteurs pour fréquences radioélectriques - Partie 69: Spécification intermédiaire relative aux connecteurs coaxiaux pour fréquences radioélectriques à accouplement par poussée - Impédance caractéristique 50 Ω (type SMP3)

L’IEC 61169-69:2024, qui est une spécification intermédiaire (SS), fournit des informations et des règles pour l’établissement de spécifications particulières (DS) relatives aux connecteurs coaxiaux pour fréquences radioélectriques à accouplement par poussée, typiquement utilisés dans des câbles pour fréquences radioélectriques de 50 Ω ou des microbandes au sein de systèmes d’hyperfréquences, de télécommunication, sans fil ou autres champs (SMP3).
Elle spécifie les dimensions de la face d’accouplement pour les connecteurs à usage général (grade 2), les détails dimensionnels des connecteurs d’essai normaux (grade 0), les informations de calibrage et les essais choisis à partir de l’IEC 61169-1, qui s’appliquent à toutes les spécifications particulières relatives aux connecteurs pour fréquences radioélectriques de série SMP3.
Cette spécification indique les caractéristiques de performance recommandées à prendre en considération pour la rédaction d’une spécification particulière et elle couvre les programmes d’essai et les exigences de contrôle pour les niveaux d’assurance M et H.
Les connecteurs coaxiaux pour fréquences radioélectriques de série SMP3 avec une structure d’accouplement par poussée, et avec la caractéristique d’impédance normative de 50 Ω, sont utilisés avec différents types de câbles pour fréquences radioélectriques ou microbandes au sein de systèmes d’hyperfréquences, de télécommunication ou sans fil, ou autres champs. La limite de fréquence de fonctionnement s’étend jusqu’à 65 GHz.
NOTE Les dimensions impériales sont les dimensions d’origine puisqu’il s’agit d’un connecteur RF extrêmement miniaturisé. Il est à craindre que la conversion au système métrique n’entraîne des erreurs d’arrondi pouvant dégrader les performances par rapport au modèle en dimensions impériales d’origine. C’est pour cette raison que le connecteur SMPM a été commercialisé en dimensions impériales. Toutes les informations graphiques sans dimensions sont fournies à titre de référence seulement.

General Information

• Status: Published
• Publication Date: 11-Jun-2024
• ICS: 33.060 - Radiocommunications
• Technical Committee: SC 46F - RF and microwave passive components
• Drafting Committee: WG 1 - TC 46/SC 46F/WG 1
• Current Stage: PPUB - Publication issued
• Start Date: 12-Jun-2024
• Completion Date: 10-May-2024

Overview

IEC 61169-69:2024 is an international standard developed by the International Electrotechnical Commission (IEC) that specifies sectional requirements for radio-frequency (RF) coaxial connectors with push-on mating, specifically the SMP3 type designed for characteristic impedance of 50 Ω. This standard forms part 69 of the IEC 61169 series, which addresses RF connectors used widely in microwave, telecommunication, and wireless systems.

The document provides detailed information and rules for preparing comprehensive detail specifications (DS) for SMP3 connectors, including dimensional tolerances, mating face specifications, gauging procedures, and testing methods. SMP3 connectors support high-frequency applications with operating frequency limits up to 65 GHz, making them critical components in modern RF cable and micro-strip assemblies.

Key highlights:

• Focus on push-on coupling RF coaxial connectors.
• Standardizes mating face dimensions for general-purpose connectors (grade 2) and test connectors (grade 0).
• Provides gauging details to ensure accuracy during manufacturing and quality control.
• Defines test schedules and inspection requirements for quality assessment at levels M and H.
• Emphasizes retention of original imperial dimensioning to avoid performance loss and rounding errors.

Key Topics

1. Mating Face Dimensions and Connector Types

The standard details the mating face dimensions for SMP3 connectors, categorizing into:

• Connectors with pin-centre contact.
• Connectors with socket-centre contact.

These mating face dimensions ensure interchangeability and effective coupling in RF applications.

2. Gauging and Measurement Procedures

Precise gauging is fundamental for maintaining connector performance. IEC 61169-69 provides specifications for:

• SMP3 gauge pins and engagement/separation force gauges.
• Gauges for outer contact for socket-centre contacts.

This allows manufacturers and testers to measure and validate the mechanical and electrical interfaces reliably.

3. Quality Assessment and Testing

To guarantee performance compliance, the standard outlines:

• Quality assessment procedures aligned with IEC 61169-1.
• Recommended rating and performance characteristics.
• Comprehensive test schedules, including acceptance testing and periodic testing.
• Inspection protocols for quality conformance and maintenance.

4. Preparation of Detail Specifications

The document aids manufacturers in drafting detailed specifications, recommending inclusion of:

• Component identification.
• Performance criteria.
• Marking and ordering information.
• Selection of applicable tests and severities.

A blank pro-forma for SMP3 connectors is provided to streamline specification creation.

Applications

IEC 61169-69:2024 is vital for industries and sectors requiring reliable, high-frequency RF interconnections, including:

• Microwave Engineering: Ensures stable connections in microwave test equipment and transmission lines.
• Telecommunication: Used in base stations, repeaters, and antenna interfaces within wireless communication networks.
• Wireless Systems: Critical in designing components that transmit or receive signals in 5G, IoT, and other wireless protocols.
• RF Cable Assemblies and Micro-strip Applications: Plays a key role in microwave circuits and high-frequency cable harness configurations.

The SMP3 connector’s push-on coupling mechanism offers quick, secure mating suitable for compact, high-density RF environments with frequency operations up to 65 GHz.

Related Standards

• IEC 61169-1: General requirements and tests for RF connectors, providing foundational test methods referenced in part 69.
• IEC 61169 series: A comprehensive set of standards covering various types of RF connectors with different coupling mechanisms and impedance values.
• ISO/IEC Directives, Part 1 & 2: Guidelines for drafting international standards and managing consistency across IEC publications.

Adherence to IEC 61169-69 alongside these related standards enables interoperability, quality assurance, and resilience in RF connector manufacturing and use.

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Keywords: IEC 61169-69, SMP3 RF connectors, 50 ohm coaxial connectors, push-on mating RF connectors, RF connector specifications, microwave connectors, telecommunication RF components, wireless RF connectors, RF cable connectors, high-frequency RF connectors, RF connector testing, IEC standards for RF connectors.

Standards Content (Sample)

IEC 61169-69 ®
Edition 1.0 2024-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radio-frequency connectors –
Part 69: Sectional specification for RF coaxial connectors with push on mating –
Characteristic impedance 50 Ω (type SMP3)
Connecteurs pour fréquences radioélectriques –
Partie 69: Spécification intermédiaire relative aux connecteurs coaxiaux pour
fréquences radioélectriques à accouplement par poussée – Impédance
caractéristique 50 Ω (type SMP3)
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IEC 61169-69 ®
Edition 1.0 2024-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radio-frequency connectors –
Part 69: Sectional specification for RF coaxial connectors with push on mating –
Characteristic impedance 50 Ω (type SMP3)
Connecteurs pour fréquences radioélectriques –
Partie 69: Spécification intermédiaire relative aux connecteurs coaxiaux pour
fréquences radioélectriques à accouplement par poussée – Impédance
caractéristique 50 Ω (type SMP3)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.060 ISBN 978-2-8322-8739-2
– 2 – IEC 61169-69:2024 © IEC 2024
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Mating face and gauge information . 7
4.1 Dimensions – General connectors – Grade 2 . 7
4.1.1 SMP3 connector with pin-centre contact . 7
4.1.2 SMP3 connector with socket-centre contact . 8
4.2 SMP3 gauges . 10
4.2.1 SMP3 gauge pin for socket-centre contact . 10
4.2.2 Gauges for outer contact of SMP3 connector with socket-centre contact . 11
5 Quality assessment procedure . 20
5.1 General . 20
5.2 Rating and characteristics (see IEC 61169-1:2013, Clause 5) . 20
5.3 Test schedule and inspection requirements. 23
5.3.1 Acceptance tests . 23
5.3.2 Periodic tests . 24
5.4 Procedures for the quality conformance . 25
5.4.1 Quality conformance inspection . 25
5.4.2 Quality conformance and its maintenance . 25
6 Instructions for preparation of detail specifications (DS) . 26
6.1 General . 26
6.2 Identification of the component . 26
6.3 Performances . 26
6.4 Marking, ordering information and related matters . 26
6.5 Selection of tests, test conditions and severities . 27
6.6 Blank detail specification pro-forma for type SMP3 connector . 27
7 Marking . 31
7.1 Marking of component . 31
7.2 Marking and contents of package . 32

Figure 1 – SMP3 connector with pin-centre contact – Full detent . 7
Figure 2 – SMP3 connector with pin-centre contact – Smooth bore . 8
Figure 3 – SMP3 connector with socket-centre contact . 9
Figure 4 – SMP3 gauge pin for socket-centre contact . 10
Figure 5 – SMP3 engagement force gauge – Full detent . 11
Figure 6 – SMP3 separation force gauge – Full detent . 13
Figure 7 – SMP3 engagement force gauge – Smooth bore . 15
Figure 8 – SMP3 Separation force gauge – Smooth bore . 17
Figure 9 – SMP3 gauge block . 19

Table 1 – Dimensions of SMP3 connector with pin-centre contact – Full detent . 7
Table 2 – Dimensions of SMP3 connector with pin-centre contact – Smooth bore . 8

Table 3 – Dimensions of SMP3 connector with socket-centre contact . 9
Table 4 – Dimensions of SMP3 gauge pin for socket-centre contact . 10
Table 5 – Dimensions of SMP3 engagement force gauge – Full detent . 12
Table 6 – Dimensions of SMP3 separation force gauge – Full detent . 14
Table 7 – Dimensions of SMP3 engagement force gauge – Smooth bore . 16
Table 8 – Dimensions of SMP3 separation force gauge – Smooth bore . 18
Table 9 – Dimensions of SMP3 gauge block . 19
Tablٞe 10 – Preferred climatic categories . 20
Table 11 – Rating and characteristics . 21
Table 12 – Acceptance tests . 23
Table 13 – Periodic tests . 24

– 4 – IEC 61169-69:2024 © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RADIO-FREQUENCY CONNECTORS –
Part 69: Sectional specification for RF coaxial connectors
with push on mating – Characteristic impedance 50 Ω (type SMP3)

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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IEC 61169-69 has been prepared by subcommittee 46F: RF and microwave passive
components, of IEC technical committee 46: Cables, wires, waveguides, RF connectors, RF
and microwave passive components and accessories. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
46F/666/FDIS 46F/671/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts of the IEC 61169 series, under the general title: Radio-frequency connectors,
can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
– 6 – IEC 61169-69:2024 © IEC 2024
RADIO-FREQUENCY CONNECTORS –
Part 69: Sectional specification for RF coaxial connectors
with push on mating – Characteristic impedance 50 Ω (type SMP3)

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 push-on coupling,
typically for use in 50 Ω RF cables or micro-strips in microwave, telecommunication, wireless
systems, and other fields (SMP3).
It specifies mating face dimensions for general purpose connectors – grade 2, 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 SMP3 RF connectors.
This specification 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 SMP3 push-on coupling structure series RF coaxial connectors with the characteristic of
normative impedance 50 Ω are used with various kinds of RF cables or micro-strips in
microwave, telecommunication, wireless systems, and other fields. The operating frequency
limit is up to 65 GHz.
NOTE Imperial dimensions are the original dimensions since this is a very miniature RF connector. There is a
concern that conversion to the metric system could lead to rounding errors which can lead to performance
degradation from the original imperial design. The SMPM connector was released as an imperial design for this
reason. All undimensioned pictorial information is for reference 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 60068-1, Environmental testing – Part 1: General and guidance
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp

4 Mating face and gauge information
4.1 Dimensions – General connectors – Grade 2
4.1.1 SMP3 connector with pin-centre contact
4.1.1.1 SMP3 connector with pin-centre contact – Full detent
Figure 1 shows an SMP3 connector with pin-centre contactor – Full detent.

NOTE For dimensions, see Table 1.
Figure 1 – SMP3 connector with pin-centre contact – Full detent
Table 1 – Dimensions of SMP3 connector with pin-centre contact – Full detent
Ref. Inches (millimetres) Remarks
Min. Max.
A 0,057 (1,448) 0,058 (1,473)
B 0,073 (1,854) 0,075 (1,905)
C 0,008 5 (0,216) 0,009 5 (0,241)
D 0,059 (1,499) 0,061 (1,549)
E 0,020 (0,508) 0,030 (0,762)
F 0,048 (1,219) 0,050 (1,270)
G 0,033 (0,838) 0,041 (1,041)
H 0,010 (0,254) 0,012 (0,305)
J 0,000 (0,000) -
– 8 – IEC 61169-69:2024 © IEC 2024
4.1.1.2 SMP3 connector with pin-centre contact – Smooth bore
Figure 2 shows a SMP3 connector with pin-centre contact – Smooth bore.

NOTE For dimensions, see Table 2.
Figure 2 – SMP3 connector with pin-centre contact – Smooth bore
Table 2 – Dimensions of SMP3 connector with pin-centre contact – Smooth bore
Inches (millimetres)
Ref. Remarks
Min. Max.
B 0,073 (1,854) 0,075 (1,905)
C 0,008 5 (0,216) 0,009 5 (0,241)
D 0,059 (1,499) 0,061 (1,549)
E 0,020 (0,508) 0,030 (0,762)
F 0,048 (1,219) 0,050 (1,270)
G 0,033 (0,838) 0,041 (1,041)
J 0,000 (0,000) -
4.1.2 SMP3 connector with socket-centre contact
Figure 3 shows a SMP3 connector with socket-centre contact.

Requirements:
Features shall meet the mechanical / electrical requirements when mated with connector with
pin-centre contact.
NOTE For dimensions, see Table 3.
Figure 3 – SMP3 connector with socket-centre contact
Table 3 – Dimensions of SMP3 connector with socket-centre contact
Ref. Inches (millimetres) Remarks
Min. Max.
A - 0,070 (1,778)
B 0,000 (0,000) 0,005 (0,127)
C 0,029 (0,737) -
D 0,040 (1,016) -
E - 0,065 (1,651)
F - 0,010 5 (0,267)
– 10 – IEC 61169-69:2024 © IEC 2024
4.2 SMP3 gauges
4.2.1 SMP3 gauge pin for socket-centre contact
4.2.1.1 Mating dimensions for SMP3 pin connector for smooth bore and full detent

Requirements:
1) Material – 440 stainless steel, hardness 56-60 RC.
2) All surfaces shall be Ra 32 μin (0,8 µm) maximum except the mating surfaces ØA and
spherical radius shall be Ra 16 μin (0,4 µm) maximum.
NOTE For dimensions, see Table 4.
Figure 4 – SMP3 gauge pin for socket-centre contact
Table 4 – Dimensions of SMP3 gauge pin for socket-centre contact
Ref. Gauge A – Oversize Gauge B – Insertion force Gauge C – Retention force
Inches (millimetres) Inches (millimetres) Inches (millimetres)
Min. Max. Min. Max. Min. Max.
A 0,009 8 0,009 9 0,009 5 0,009 6 0,008 4 0,008 5
(0,249) (0,251) (0,241) (0,244) (0,213) (0,216)

4.2.1.2 Test procedure
4.2.1.2.1 Insertion force
Figure 4 oversize gauge A shall be inserted into the socket-centre contact 3 times to a depth
of 0,020 in (0,508 mm) to 0,030 in (0,762 mm).
Figure 4 insertion force gauge B shall be inserted into the socket-centre contact to a depth of
0,020 in (0,508 mm) to 0,030 in (0,762 mm). The insertion force measured shall be 3,33 N
(12 oz) maximum.
4.2.1.2.2 Retention force
Figure 4 retention force gauge C shall be inserted into the socket-centre contact to a depth of
0,020 in (0,508 mm) to 0,030 in (0,762 mm). The retention (withdrawal) force shall be 0,035 N
(0,125 oz) minimum.
4.2.2 Gauges for outer contact of SMP3 connector with socket-centre contact
4.2.2.1 Engagement force gauge – Full detent for outer contact of SMP3 connector
with socket-centre
Requirements:
1) Material – 440 stainless steel, hardness 56-60 RC.
2) Break corners and edges 0,005 in (0,127 mm) R. max. except ØA feature shall be 0,001 in
(0,025 mm) R. max.
3) Remove all burrs.
4) All diameters concentric to Datum A within 0,001 in (0,025 mm) T.I.R.
5) All surfaces shall be Ra 32 μin (0,8 µm) maximum except the mating surfaces 31,0° ± 5°,
ØA, 45°± 5°, and ØD shall be Ra 16 μin (0,4 µm) maximum.
6) Chamfer first thread.
7) No lubricant allowed.
NOTE For dimensions, see Table 5.
Figure 5 – SMP3 engagement force gauge – Full detent

– 12 – IEC 61169-69:2024 © IEC 2024
Table 5 – Dimensions of SMP3 engagement force gauge – Full detent
Ref. Inches (millimetres) Remarks
Min. Max.
A 0,056 9 (1,445) 0,057 1 (1,450)
B 0,073 (1,854) 0,075 (1,905)
D 0,059 (1,499) 0,061 (1,549)
E 0,002 (0,051) 0,004 (0,102)
F 0,048 (1,219) 0,050 (1,270)
G 0,033 (0,838) 0,041 (1,041)
H 0,010 (0,254) 0,012 (0,305)
J 0,170 (4,318) 0,180 (4,572)
K 0,245 (6,223) 0,255 (6,477)
L 0,217 (5,512) 0,223 (5,664)
M 0,370 (9,398) 0,380 (9,652)
N 0,021 (0,533) 0,031 (0,787)
4.2.2.2 Test procedure
The force gauge shall be threaded onto the Figure 9 SMP3 gauge block and torqued to prevent
loosening of the thread during force measurement.
Figure 5 engagement force gauge – full detent shall be fully mated 5 times with the outer contact
of the connector. The engagement force shall be measured on the insertion of the fifth mating
cycle. The engagement force shall be 17,8 N (4 lbs) maximum.

4.2.2.3 Separation force gauge – Full detent for outer contact of SMP3 connector
with socket-centre
Requirements:
1) Material – 440 stainless steel, hardness 56-60 RC.
2) Break corners and edges 0,005 in (0,127 mm) R. max. except ØA feature shall be 0,001 in
(0,025 mm) R. max.
3) Remove all burrs.
4) All diameters concentric to Datum A within 0,001 in (0,025 mm) T.I.R.
5) All surfaces shall be Ra 32 μin (0,8 µm) maximum except the mating surfaces 30,0° ± 1°,
ØA, 40° ± 5°, and ØD shall be Ra 16 μin (0,4 µm) maximum.
6) Chamfer first thread.
7) No lubricant allowed.
NOTE For dimensions, see Table 6.
Figure 6 – SMP3 separation force gauge – Full detent

– 14 – IEC 61169-69:2024 © IEC 2024
Table 6 – Dimensions of SMP3 separation force gauge – Full detent
Inches (millimetres)
Ref. Remarks
Min. Max.
A 0,057 9 (1,471) 0,058 1 (1,476)
B 0,073 (1,854) 0,075 (1,905)
D 0,058 9 (1,496) 0,059 1 (1,501)
E 0,002 (0,051) 0,004 (0,102)
F 0,048 (1,219) 0,050 (1,270)
G 0,033 (0,838) 0,041 (1,041)
H 0,010 (0,254) 0,012 (0,305)
J 0,170 (4,318) 0,180 (4,572)
K 0,245 (6,223) 0,255 (6,477)
L 0,217 (5,512) 0,223 (5,664)
M 0,370 (9,398) 0,380 (9,652)
N 0,021 (0,533) 0,031 (0,787)
4.2.2.4 Test procedure
The force gauge shall be threaded onto the Figure 9 SMP3 gauge block and torqued to prevent
loosening of the thread during force measurement.
Figure 6 separation force gauge – full detent shall be fully mated 5 times with the outer contact
of the connector. The separation force shall be measured on the withdrawal of the fifth mating
cycle. The separation force shall be 8,90 N (2 lbs) minimum.

4.2.2.5 Engagement force gauge – Smooth bore for outer contact of SMP3 connector
with socket-centre
Requirements:
1) Material – 440 stainless steel, hardness 56-60 RC.
2) Break corners and edges 0,005 in (0,127 mm) R. max. except ØA feature shall be 0,001 in
(0,025 mm) R. max.
3) Remove all burrs.
4) All diameters concentric to Datum A within 0,001 in (0,025 mm) T.I.R.
5) All surfaces shall be Ra 0,8 µm (32 μin) maximum except the mating surfaces 31,0° ± 5°
and ØD shall be Ra 16 μin (0,4 µm) maximum.
6) Chamfer first thread.
7) No lubricant allowed.
NOTE For dimensions, see Table 7.
Figure 7 – SMP3 engagement force gauge – Smooth bore

– 16 – IEC 61169-69:2024 © IEC 2024
Table 7 – Dimensions of SMP3 engagement force gauge – Smooth bore
Ref. Inches (millimetres) Remarks
Min. Max.
B 0,073 (1,854) 0,075 (1,905)
D 0,058 9 (1,496) 0,059 1 (1,501)
E 0,002 (0,051) 0,004 (0,102)
F 0,048 (1,219) 0,050 (1,270)
G 0,033 (0,838) 0,041 (1,041)
J 0,170 (4,318) 0,180 (4,572)
K 0,245 (6,223) 0,255 (6,477)
L 0,217 (5,512) 0,223 (5,664)
M 0,370 (9,398) 0,380 (9,652)
N 0,021 (0,533) 0,031 (0,787)
4.2.2.6 Test procedure
The force gauge shall be threaded onto the Figure 9 SMP3 gauge block and torqued to prevent
loosening of the thread during force measurement.
Figure 7 engagement force gauge – smooth bore shall be fully mated 5 times with the outer
contact of the connector. The engagement force shall be measured on the insertion of the fifth
mating cycle. The engagement force shall be 8,90 N (2 lbs) maximum.

4.2.2.7 Separation force gauge – Smooth bore for outer contact of SMP3 connector
with socket-centre
Requirements:
1) Material – 440 stainless steel, hardness 56-60 RC.
2) Break corners and edges 0,005 in (0,127 mm) R. max. except ØA feature shall be 0,001 in
(0,025 mm) R. max.
3) Remove all burrs.
4) All diameters concentric to Datum A within 0,001 in (0,025 mm) T.I.R.
5) All surfaces shall be Ra 32 μin (0,8 µm) maximum except the mating surfaces 30,0° ± 1°
and ØD shall be Ra 16 μin (0,4 µm) maximum.
6) Chamfer first thread.
7) No lubricant allowed.
NOTE For dimensions, see Table 8.
Figure 8 – SMP3 Separation force gauge – Smooth bore

– 18 – IEC 61169-69:2024 © IEC 2024
Table 8 – Dimensions of SMP3 separation force gauge – Smooth bore
Ref. Inches (millimetres) Remarks
Min. Max.
B 0,073 (1,854) 0,075 (1,905)
D 0,060 9 (1,547) 0,061 1 (1,552)
E 0,002 (0,051) 0,004 (0,102)
F 0,048 (1,219) 0,050 (1,270)
G 0,033 (0,838) 0,041 (1,041)
J 0,170 (4,318) 0,180 (4,572)
K 0,245 (6,223) 0,255 (6,477)
L 0,217 (5,512) 0,223 (5,664)
M 0,370 (9,398) 0,380 (9,652)
N 0,021 (0,533) 0,031 (0,787)
4.2.2.8 Test procedure
The force gauge shall be threaded onto the Figure 9 SMP3 gauge block and torqued to prevent
loosening of the thread during force measurement.
Figure 8 separation force gauge – smooth bore shall be fully mated 5 times with the outer
contact of the connector. The separation force shall be measured on the withdrawal of the fifth
mating cycle. The separation force shall be 1,33 N (0,3 lbs) minimum.

4.2.2.9 SMP3 gauge block
Requirements:
1) Material – 440 stainless steel
2) Break corners and edges 0,005 in (0,127 mm) R. max.
3) Remove all burrs.
4) All diameters concentric within 0,005 in (0,127 mm) T.I.R.
5) All surfaces shall be Ra 63 μin (1,6 µm) max.
6) Chamfer first and last thread.
NOTE For dimensions, see Table 9.
Figure 9 – SMP3 gauge block
Table 9 – Dimensions of SMP3 gauge block
Inches (millimetres)
Ref. Remarks
Min. Max.
A 0,100 (2,540) -
B 0,203 (5,156) 0,207 (5,258)
M 0,370 (9,398) 0,380 (9,652)
D 0,010 (0,254) -
E 0,075 (1,905) 0,080 (2,032)
F 0,180 (4,572) 0,190 (4,826)
G 0,307 (7,798) 0,317 (8,052)
– 20 – IEC 61169-69:2024 © IEC 2024
5 Quality assessment procedure
5.1 General
IEC 61169-1:2013, Clause 10 applies to this sectional specification, except as follows:
Subclauses 5.2 to 5.4 provide rating, performance and test conditions to be considered when
writing a detail specification. They also provide an appropriate schedule of tests with minimum
levels of conformance inspection sampling.
5.2 Rating and characteristics (see IEC 61169-1:2013, Clause 5)
The values indicated below are required for SMP3 series RF coaxial connectors unless
otherwise stated and are given for the writer of the detail specification. They are applicable for
the condition when the connectors are fully mated.
Certain tests do not have requirements, and this is indicated by a blank or NS (not specified).
These requirements shall be specified in the detailed specification by the manufacturer of the
connector. These ratings and characteristics serve as the input in preparing the detailed
specification, describe what shall be mandatory, and what is up to the discretion of the
manufacturer.
Preferred climatic categories are given in Tablٞe 10. Ratings and characteristics are given in
Table 11.
Tablٞe 10 – Preferred climatic categories
Category Damp heat
Letter Temperature range
designation steady state
55/125/21 B –55 °C to +125 °C 21 days
Reference: IEC 60068-1.
Table 11 – Rating and characteristics
Remarks, deviations
IEC 61169-1:2013
from standard test
Value
Rating and characteristics
Subclause
methods
Electrical
Nominal impedance 50 Ω
a
Frequency range
– straight styles DC ~ 65 GHz
Or upper frequency limit
– right-angle styles DC ~ 26,5 GHz
of cable
– solder bucket and PCB mounting
DC ~ 12 GHz
styles
a
9.2.1
Return loss
Grade 1 connectors
– straight styles 26,0 dB from 0,05 GHz to
12 GHz
16,5 dB from 12 GHz to
26,5 GHz
12,8 dB from 26,5 GHz to
65 GHz
– right-angle styles See DS
– component mounting styles See DS
– solder bucket and PCB mounting
See DS
styles
Power rating 9.2.2 See DS
Contact resistance, outer conductor
and centre conductor continuity 9.2.3
(mated cabled connectors)
b
Centre contact resistance
– initial ≤ 6,0 mΩ
– after conditioning ≤ 6,0 mΩ
b
Outer conductor resistance
– initial ≤ 2 mΩ
– after conditioning ≤ 2 mΩ
Insulation resistance 9.2.5
– initial ≥ 3 500 MΩ
– after conditioning ≥ 700 MΩ
c d
9.2.6 86 kPa to 106 kPa
Voltage proof at sea level
– semi-rigid and semi-flexible
cable with 0,047 in (1,19 mm) 217 V
diameter
c d
4,4 kPa approximately
Voltage proof at 4,4kPa
9.2.6
equivalent to 20 km
– semi-rigid and semi-flexible
cable with 0,047 in (1,19 mm)
42 V
diameter
Environmental test voltage at sea
9.2.6 86 kPa to 106 kPa
c d
level
– semi-rigid and semi-flexible
cable with 0,047 in (1,19 mm) 325 V
diameter
– 22 – IEC 61169-69:2024 © IEC 2024
Remarks, deviations
IEC 61169-1:2013
from standard test
Value
Rating and characteristics
Subclause
methods
Environmental test voltage at 4,4 kPa approximately
9.2.6
c d
equivalent to 20 km
4,4 kPa
– semi-rigid and semi-flexible
cable with 0,047 in (1,19 mm) 80 V
diameter
e
9.2.7 ≥ 70 dB at 1 GHz
Screening effectiveness
Mechanical
Insertion force (resilient contacts) See 4.2 of this sectional
9.3.4
specification
– centre contact ≤ 3,34 N
– outer contact
Retention force (resilient contacts) See 4.2 of this sectional
9.3.4
specification
– centre contact ≥ 0,035 N
– outer contact
Centre contact captivation 9.3.5
Only applicable to centre
contact with captivation
– axial force 3,34 N
structure; after the test,
– permitted displacement in each
the dimension of centre
See DS
direction
contact shall comply with
interface dimension
– axial torque See DS
Engagement and separation forces
9.3.6
and torques
– engagement Full detent: ≤ 17,8 N

Smooth bore: ≤ 8,90 N
– separation
Full detent: ≥ 8,90 N
Smooth bore: ≥ 1,33 N
Effectiveness of clamping device 9.3.8 See DS
against cable pulling
Effectiveness of clamping device 9.3.10 See DS
against cable torsion
Bump 9.3.13 See DS
Vibration 9.3.3 10 g acceleration
150 m/s
n
10 Hz to 2 000 Hz
Shock 9.3.14 ½ sine wave
500 m/s
11 ms
Environmental
Damp heat, steady state 9.4.3 40 °C, 93 % RH, 21 days < 3 dB RL degradation
Rapid change of temperature 9.4.4 −55 °C / +125 °C < 3 dB RL degradation
Salt mist 9.4.10 48 h Duration of spraying

Remarks, deviations
IEC 61169-1:2013
from standard test
Value
Rating and characteristics
Subclause
methods
Endurance
Mechanical endurance 9.3.15 Smooth bore:
500 operations
Full detent:
100 operations
f
9.4.5 250 h at 125 °C
High temperature endurance
Low temperature endurance 9.4.6 See DS
a
These values apply to basic connector. In practice, these can be influenced by the cable used and reference
should always be made to the actual values given in the DS.
b
Values for a single pair of connectors.
c
Voltages are RMS values of AC at 40 Hz to 65 Hz, unless otherwise specified.
d
Some cables usable with these connectors have ratings lower than the values given here.
e
When interfaces are fully mated.
f
For certain connectors, the upper temperature limit is restricted by the cable characteristics. Reference should
be made to the relevant cable specification.

5.3 Test schedule and inspection requirements
5.3.1 Acceptance tests
Table 12 describes the acceptance tests to be performed.
Table 12 – Acceptance tests
Assessment level M (higher) Assessment level H (lower)
IEC 61169-
– 1:2013 Test IL AQL Period Test IL AQL Period
subclause required required
% %
Group A1
Visual examination 9.1.1 a II 1 a S3 1,5
Group B1
Outline dimension 9.1.2 a S4 0,4 a S3 4,0
Mechanical 9.1.2.2 a II 1 a S3 1,5
compatibility
Engagement and 9.3.6 a S4 0,4 a S3 1,5
separation
Insertion / Retention 9.3.4 ia II 1 ia S3 1,5
(resilient contacts)
Sealing
non hermetic 9.4.7 ia II 0,65 ia S3 1
hermetic 9.4.8 ia II 0,015 ia S3 0,025
Voltage proof 9.2.6 a II 0,4 a II 4,0
Solderability (d) 9.3.2.2 ia S4 0,4 ia S3 4,0
Insulation resistance 9.2.5 a S4 0,4 a S3 4,0
For the symbols, abbreviations and procedures, see the end of Table 13.

Lot by lot
Lot by lot
– 24 – IEC 61169-69:2024 © IEC 2024
5.3.2 Periodic tests
Table 13 describes the periodic tests to be performed.
There are no group C tests for levels H and M.
Table 13 – Periodic tests
IEC 61169- Assessment level M (higher) Assessment level H (lower)
1:2013
Test Number of Permitted Period Test Number of Permitted Period
Subclause
required specimens failures required specimens failures
per per
group1# group1#
Group D1 3
6 1 3 years  3  1
(d) years
Solderability 9.3.2.2 ia    ia
connector
assemblies
Resistance 9.3.2.3 ia    ia
to soldering
heat
Mechanical
tests on
cable fixing
Cable 9.3.7 na    na
rotation
(nutation)
Cable pulling 9.3.8 ia    ia
Cable 9.3.9 ia    ia
bending
Cable 9.3.10 ia    ia
torsion
Group D2   6 1 3 years  3 1 3
(d) years
Contact 9.2.3 a    a
resistance,
outer
conductor
and centre
conductor
continuity
Vibration 9.3.3 a
Damp heat, 9.4.3 a    a
steady state
Group D3   1 1 3 years  1* 1 3
(d) years
Dimensions 9.1.2 a    a
piece-parts
and
materials
Group D4   6 1 3 years  3 1 3
(d) years
Mechanical 9.3.15 a    a
endurance
High 9.4.5 a    a
temperature
endurance
Discharge 9.2.8
test
IEC 61169- Assessment level M (higher) Assessment level H (lower)
1:2013
Test Number of Permitted Period Test Number of Permitted Period
Subclause
required specimens failures required specimens failures
per per
group1# group1#
Climatic
9.4 na    na
conditioning
Group D5   6 1 3 years  3 1 3
(d) years
Return loss 9.2.1 a    a
Screening 9.2.7 a    a
effectiveness
Water 9.4.9 ia    ia
immersion
Group D6   6 1 3 years  3 1 3
(d) years
Contact 9.3.5 a    a
captivation
Change of 9.4.4 na    na
temperature
Climatic
9.4.2 a    a
sequence
Group D7   1§  3 years  1§  3
(d) years
Salt mist 9.4.10 a
a Suggested as applicable.
ia Test suggested (if technically applicable).
na Not applicable.
IL Inspection level.
AQL Acceptable quality level.
* One set of piece-parts each style and variant, unless using common piece parts.
# For quality conformance, a total of two failures only permitted for level H and 1 failure only for
level M from groups D1 to D7.
§ Group D7 – number of pairs for each solvent.
(d) Destructive tests – specimens shall not be returned to stock.

5.4 Procedures for the quality conformance
5.4.1 Quality conformance inspection
This shall consist of test group A1 and B1 on a lot-by-lot basis and test group D1 to D7 on a
periodic basis.
5.4.2 Quality conformance and its maintenance
This shall consist of three consecutive lots passing test groups A1 and B1 followed by selection
of specimens from the lots as appropriate. These specimens shall successfully pass the
specified periodic D tests.
– 26 – IEC 61169-69:2024 © IEC 2024
6 Instructions for preparation of detail specifications (DS)
6.1 General
Detail specifications writers shall use the appropriate blank detail specification (BDS). The
following page comprise the BDS dedicated for use with type 50 Ω type SMP3 connectors. As
such, it will already have entered on it information relation to
a) the basic specification number applicable to all the detail specifications covering connector
styles of the series covered by the sectional specification;
b) the connector series designation.
The specification writer should enter the details relating to the connector style to be covered as
indicated. The numbers in brackets in the BDS correspond to the following indications, which
shall be given.
6.2 Identification of the component
1) Enter the following details:
– Style: the style designation of the connector including type of fixing and sealing if
applicable.
– Attachment: by deletion of the inapplicable options of cable/wire given for centre and
outer conductors.
– Special features and marking: as applicable.
2) Enter details of assessment level and the climatic category.
3) A reproduction of the outline drawing and details of the panel piercing (if applicable). It shall
provide the maximum envelope dimensions, also the position of the reference plane and, in
the case of a fixed connector, the position of the mounting plane(s) relative to the front face
of the connector.
4) Any maximum panel thickness limitations for fixed connectors shall be stated.
5) Particulars of all variants covered by the DS. As appropriate, the information shall include:
– cable types (or sizes) applicable to each variant,
– alternative plated or protective finishes,
– details of alternative mounting flanges having either tapped or plain mounting holes,
– details of alternative solder spills or solder buckets including, when applicable, those for
use with microwave integrated circuit (MIC) components.
6.3 Performances
6) Performance data listing the most important characteristics of the connectors in accordance
with the requirements of the relevant sectional specification. Deviations from the minimum
requirements shall be clearly indicated. Non-applicable parameters shall be marked "na".
6.4 Marking, ordering information and related matters
7) Insert marking and ordering information as appropriate, together with details or related
documents and any invoked structural similarity.

6.5 Selection of tests, test conditions and severities
8) "na" shall be used to indicate non-applicable tests. All tests marked "a" by the detail
specification writer shall be mandatory.
When using the normal procedure with a dedicated BDS, the letter "a" − for applicable −
shall be entered in the "test required" column against each of the tests indicated as being
mandatory in the test schedule of the relevant sectional specification. Any addit
...