EN 61169-52:2015

Radio-frequency connectors - Part 52: Sectional specification for series MMCX RF coaxial connectors

IEC 61169-52:2015(E), which is a sectional specification (SS), provides information and rules for the preparation of detail specifications (DS) for RF coaxial connectors with snap-on coupling, typically for use in 50 Ohms cable networks (MMCX). It prescribes 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 MMCX 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 MMCX miniature snap-on coupling structure series R.F. coaxial connector with the characteristic of normative impedance 50 Ohms are used with various kinds of R.F cables and strips. The operating frequency limit is up to 6 GHz.

Hochfrequenz-Steckverbinder - Teil 52: Rahmenspezifikation für koaxiale HF-Steckverbinder der Serie MMCX

Connecteurs pour fréquences radioélectriques - Partie 52: Spécification intermédiaire relative aux connecteurs coaxiaux pour fréquences radioélectriques série MMCX

L'IEC 61169-52:2015, qui est une spécification intermédiaire (SI), fournit des informations et des règles en vue de l'établissement de spécifications particulières (SP) relatives aux connecteurs coaxiaux pour fréquences radioélectriques avec couplage par enclenchement, typiquement utilisés dans des réseaux câblés 50 Ω (type MMCX). Elle prescrit les dimensions des faces d'accouplement pour des connecteurs d'usage général de classe 2, des informations détaillées sur les dimensions de connecteurs d'essais normalisés de classe 0, des informations concernant les calibres et les essais choisis dans l'IEC 61169-1, applicables à toutes les spécifications particulières ayant trait aux connecteurs pour fréquences radioélectriques série de type MMCX. La présente spécification indique les caractéristiques de performance recommandées à prendre en compte pour la rédaction d’une spécification particulière et elle couvre les programmes d'essais et les exigences de contrôle pour les niveaux d'assurance M et H. Les connecteurs coaxiaux pour fréquences radioélectriques série ayant une structure de couplage par enclenchement miniature de type MMCX, avec une impédance normative de 50 W, sont utilisés avec divers types de bandes et de câbles pour fréquences radioélectriques. La limite de fréquence de fonctionnement est 6 GHz.

Radiofrekvenčni konektorji - 52. del: Področna specifikacija za koaksialne konektorje serije MMCX R.F. (IEC 61169-52:2015)

Ta del standarda IEC 61169, ki je področna specifikacija (SS), podaja informacije in določa pravila za pripravo podrobnih specifikacij (DS) za radiofrekvenčne koaksialne konektorje z zaskočnim spajanjem, običajno za uporabo v 50-ohmskih kabelskih omrežjih (MMCX).
Predpisuje prednje mere stikanja za konektorje za splošni namen tipa 2, podrobnosti o merah standardnih preskusnih konektorjev tipa 0, merjenje informacij in preskuse, izbrane iz standarda IEC 61169-1, ki veljajo za vse podrobne specifikacije v zvezi z radiofrekvenčnimi konektorji serije MMCX. Ta specifikacija določa priporočene lastnosti, ki jih je treba upoštevati pri sestavljanju podrobne specifikacije, ter zajema urnike preskusov in zahteve za pregled za ravni vrednotenja M in H. Radiofrekvenčni koaksialni konektorji z miniaturno strukturo zaskočnega spajanja serije MMCX z normirano karakteristično impedanco 50 ohmov se uporabljajo z različnimi radiofrekvenčnimi kabli in trakovi. Omejitev frekvenčnega območja delovanja je do 6 GHz.
OPOMBA: Izvirne mere so podane v metričnih merah. Vse nedimenzionirane slikovne konfiguracije so podane samo v referenčne namene.

General Information

• Status: Published
• Publication Date: 01-Oct-2015
• Withdrawal Date: 09-Jul-2018
• ICS: 33.120.30 - RF connectors
• Technical Committee: CLC/SR 46F - RF and microwave passive components
• Drafting Committee: IEC/SC 46F - IEC_SC_46F
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 02-Oct-2015
• Completion Date: 02-Oct-2015
• Ref Project: SIST EN 61169-52:2016 - Radio-frequency connectors -- Part 52: Sectional specification for series MMCX RF coaxial connectors (IEC 61169-52:2015)

Relations

• Replaces: EN 122340:2002 - Sectional Specification: Radio frequency coaxial connectors - Series MMCX
• Effective Date: 23-Jan-2023

Overview - EN 61169-52:2015 (MMCX RF coaxial connectors)

EN 61169-52:2015 is the CLC/CENELEC adoption of IEC 61169-52:2015 - a sectional specification (SS) for MMCX RF coaxial connectors. It gives the framework and rules for preparing detail specifications (DS) for miniature 50 Ω snap‑on (MMCX) connectors used in RF cable and strip assemblies. The standard prescribes mating face dimensions, gauging rules, test connector dimensions, and recommended performance and inspection criteria up to an operating frequency of 6 GHz.

Key topics and technical requirements

• Mating face dimensions: Defines dimensional requirements for general purpose connectors (Grade 2) and for standard test connectors (Grade 0).
• Gauging information: Includes gauge pin and outer contact gauge specifications used to verify mechanical fit and conformity.
• Electrical/mechanical interface: Addresses mechanical and electrical reference planes and mating geometry required for reliable snap‑on coupling.
• Test selection: Selects applicable tests from IEC 61169-1 (generic RF connector spec) and aligns environmental testing with IEC 60068-1.
• Performance recommendations: Recommends electrical and mechanical performance characteristics to include in a detail specification (DS).
• Quality assessment: Defines test schedules and inspection requirements for assessment levels M and H, and procedures for qualification approval and maintenance.
• Documentation guidance: Provides instructions and a pro‑forma to prepare DS documents, marking, ordering information and package content rules.

Applications and who uses this standard

• Connector designers and manufacturers: to develop MMCX product families, ensure interchangeability, and prepare detail specifications (DS).
• Qualification and test laboratories: to perform mechanical gauging, environmental and electrical tests, and to apply the acceptance/periodic test schedules for assessment levels M and H.
• Procurement and quality engineers: to write technical purchase specifications, verify supplier compliance, and assess product conformity.
• Systems integrators working with RF modules, test equipment, or compact wireless devices that require MMCX 50 Ω interfaces up to 6 GHz.

Related standards

• IEC 61169-1: Generic specification - general requirements and measuring methods
• IEC 60068-1: Environmental testing - general and guidance
• IEC 62037 (series): Passive RF and microwave device intermodulation measurement

EN 61169-52:2015 is essential for anyone specifying, producing or testing MMCX RF coaxial connectors to ensure mechanical compatibility, electrical performance and standardized quality assurance.

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2016
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SIST EN 122340:2005
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NRQHNWRUMHVHULMH00&;5),(&
Radio-frequency connectors -- Part 52: Sectional specification for series MMCX RF
coaxial connectors (IEC 61169-52:2015)
Hochfrequenz-Steckverbinder -Teil 52: Rahmenspezifikation für koaxiale HF-
Steckverbinderder Serie MMCX (IEC 61169-52:2015)
&RQQHFWHXUVSRXUIUpTXHQFHVUDGLRpOHFWULTXHV3DUWLH6SpFLILFDWLRQLQWHUPpGLDLUH
UHODWLYHDX[FRQQHFWHXUVFRD[LDX[SRXUIUpTXHQFHVUDGLRpOHFWULTXHV
VpULH00&;,(&
Ta slovenski standard je istoveten z: EN 61169-52:2015
ICS:
33.120.30 5DGLRIUHNYHQþQLNRQHNWRUML RF connectors
5)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 61169-52

NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2015
ICS 33.120.30 Supersedes EN 122340:2002
English Version
Radio-frequency connectors - Part 52: Sectional specification for
series MMCX RF coaxial connectors
(IEC 61169-52:2015)
Connecteurs pour fréquences radioélectriques -  Hochfrequenz-Steckverbinder -
Partie 52: Spécification intermédiaire relative aux Teil 52: Rahmenspezifikation für koaxiale HF-
connecteurs coaxiaux pour fréquences radioélectriques Steckverbinder der Serie MMCX
série MMCX (IEC 61169-52:2015)
(IEC 61169-52:2015)
This European Standard was approved by CENELEC on 2015-07-10. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61169-52:2015 E
European foreword
The text of document 46F/314/FDIS, future edition 1 of IEC 61169-52, prepared by SC 46F "R.F. and
microwave passive components" of IEC/TC 46 "Cables, wires, waveguides, R.F. connectors, R.F. and
microwave passive components and accessories" was submitted to the IEC-CENELEC parallel vote
and approved by CENELEC as EN 61169-52:2015.

The following dates are fixed:
• latest date by which the document has to be (dop) 2016-04-10
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2018-07-10
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 122340:2002.

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 61169-52:2015 was approved by CENELEC as a European
Standard without any modification.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu
Publication Year Title EN/HD Year

IEC 60068-1 -  Environmental testing - EN 60068-1 -
Part 1: General and guidance
IEC 61169-1 2013 Radio-frequency connectors - EN 61169-1 2013
Part 1: Generic specification - General
requirements and measuring methods
IEC 62037 Series Passive RF and microwave devices, EN 62037 Series
intermodulation level measurement

IEC 61169-52 ®
Edition 1.0 2015-06
INTERNATIONAL
STANDARD
colour
inside
Radio-frequency connectors –
Part 52: Sectional specification for series MMCX RF coaxial connectors

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.120.30 ISBN 978-2-8322-2735-0

– 2 – IEC 61169-52:2015 © IEC 2015
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references. 6
3 Mating face and gauge information . 6
3.1 Dimensions – General connectors – Grade 2 . 6
3.1.1 Connector with pin centre contact . 6
3.1.2 Connector with socket centre contact . 7
3.2 Gauges . 8
3.2.1 Gauge pin for socket centre contact . 8
3.2.2 Gauge for outer contact . 9
3.3 Dimensions – Standard test connectors – Grade 0 . 11
3.3.1 Connector with pin centre contact . 11
3.3.2 Connector with socket centre contact . 12
4 Quality assessment procedure . 13
4.1 General . 13
4.2 Rating and characteristics (see Clause 5 of IEC 61169-1:2013) . 13
4.3 Test schedule and inspection requirements. 15
4.3.1 Acceptance tests . 15
4.3.2 Periodic tests . 16
4.4 Procedures for the qualification approval . 18
4.4.1 Quality conformance inspection . 18
4.4.2 Qualification approval and its maintenance . 18
5 Instructions for preparation of detail specifications (DS) . 18
5.1 General . 18
5.2 Identification of the component . 18
5.3 Performances . 19
5.4 Marking, ordering information and related matters . 19
5.5 Selection of tests, test conditions and severities . 19
5.6 Blank detail specification pro-forma for type MMCX connector . 20
6 Marking . 24
6.1 Marking of component . 24
6.2 Marking and contents of package . 24

Figure 1 – Connector with pin centre contact . 7
Figure 2 – Connector with socket centre contact . 8
Figure 3 – Gauge pin for socket centre contact . 9
Figure 4 – Gauge for outer contact . 10
Figure 5 – Connector with pin centre contact . 11
Figure 6 – Connector with socket centre contact . 12

Table 1 – Dimensions of connector with pin centre contact . 7
Table 2 – Dimensions of connector with socket centre contact . 8
Table 3 – Dimensions of gauge pin for socket centre contact . 9
Table 4 – Dimensions of gauge for outer contact . 10
Table 5 – Dimensions of connector with pin centre contact . 11

IEC 61169-52:2015 © IEC 2015 – 3 –
Table 6 – Dimensions of connector with socket centre contact . 12
Table 7 – Preferred climatic categories (see IEC 60068-1) . 13
Table 8 – Rating and characteristics . 13
Table 9 – Acceptance tests . 16
Table 10 – Periodic tests . 16

– 4 – IEC 61169-52:2015 © IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RADIO-FREQUENCY CONNECTORS –
Part 52: Sectional specification for series MMCX RF coaxial connectors

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61169-52 has been prepared by subcommittee 46F: R.F. and
microwave passive components, of IEC technical committee 46: Cables, wires, waveguides,
R.F. connectors, R.F. and microwave passive components and accessories
The text of this standard is based on the following documents:
FDIS Report on voting
46F/314/FDIS 46F/320/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 61169 series, under the general title: Radio-frequency connectors,
can be found on the IEC website.

IEC 61169-52:2015 © IEC 2015 – 5 –
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 6 – IEC 61169-52:2015 © IEC 2015
RADIO-FREQUENCY CONNECTORS –
Part 52: Sectional specification for series MMCX RF coaxial connectors

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 snap-on
coupling, typically for use in 50 Ω cable networks (MMCX).
It prescribes 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 MMCX 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 MMCX miniature snap-on coupling structure series R.F. coaxial connector with the
characteristic of normative impedance 50 Ω are used with various kinds of R.F cables and
strips. The operating frequency limit is up to 6 GHz.
NOTE Metric dimension are original dimensions. All undimensioned pictorial configurations are for reference
purpose only.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. 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
IEC 62037 (all parts), Passive RF and microwave devices, intermodulation level measurement
3 Mating face and gauge information
3.1 Dimensions – General connectors – Grade 2
3.1.1 Connector with pin centre contact
The mating face of connector with pin centre contact is shown in Figure 1 and its dimensions
are shown in Table 1.
IEC 61169-52:2015 © IEC 2015 – 7 –
Note
k
j
α
h
i
60° ±2°
IEC
NOTE Mechanical and electrical reference plane.
Figure 1 – Connector with pin centre contact
Table 1 – Dimensions of connector with pin centre contact
Ref. mm
Min. Max.
a 2,35 2,40
1,80 --
b
c 1,58 1,62
d -- 2,83
f -- 0,20
g 0,38 0,42
h 0,00 0,25
a
i 1,23 --
b
j 2,08 2,12
k 2,70 --
α 30° --
a
The dimension should meet the mechanical and electrical requirements, also compensate the electrical
effect caused by gaps.
b
The shape of elastic gasket is optional and its diameter and position should meet the mechanical and
electrical requirements.
3.1.2 Connector with socket centre contact
The mating face of connector with socket centre contact is shown in Figure 2 and its
dimensions are shown in Table 2.
øa
øb
øg
øc
øf
ød
– 8 – IEC 61169-52:2015 © IEC 2015
Note
k
j
i
h
70° ±2°
15° ±2°
30° ±2°
A
l
Detail A
g
IEC
NOTE Mechanical and electrical reference plane.
Figure 2 – Connector with socket centre contact
Table 2 – Dimensions of connector with socket centre contact
Ref. mm
Min. Max.
a 2,41 --
b 0,70 (nominal)
a
c -- --
d 2,88 2,92
e 3,00 3,04
b
f -- --
g 1,40 --
h 0,90 1,20
1,57 1,63
i
j 2,26 2,34
k -- 2,69
l 0,14 0,23
a
The diameter chosen shall meet nominal impedance of 50 Ω and electrical and mechanical requirements.

b
Centre contact design is optional. It should however meet the gauging requirements of 3.2.1 and relevant
reflection factor requirements of Clause 4 using grade 0 connector in accordance with Figure 5.

3.2 Gauges
3.2.1 Gauge pin for socket centre contact
The gauge pin for socket centre contact is shown in Figure 3 and its dimensions are shown in
Table 3.
øc
øb
øf
øa
ød
øe
IEC 61169-52:2015 © IEC 2015 – 9 –
0,4
60° ±5°
c ≤R0,2
IEC
Figure 3 – Gauge pin for socket centre contact
Table 3 – Dimensions of gauge pin for socket centre contact
Ref. Gauge A Gauge B
(For sizing purpose)
（For retention purpose）
+2
Mass of gauge：28 g
mm mm
Min. Max. Min. Max.
a 0,420 0,425 0,375 0,380
b 0,00 0,20 0,00 0,20
c 0,90 1,10 1,00 1,20
Material: steel, polished.
Test procedure:
a) Sizing test
The gauge A should insert the socket centre contact three times, this is a sizing operation.
b) Insertion test
Following the sizing operation, if specified in the detail specification, the force necessary to
insert gauge A fully into the socket centre contact shall be measured. When this test is
required, the insertion force shall not exceed 5 N.
c) Retention test
After sizing or insertion test, the gauge B shall be inserted into the socket centre contact. The
contact shall retain the mass of the gauge C in a vertical downward position.
3.2.2 Gauge for outer contact
The gauge for outer contact is shown in Figure 4 and its dimensions are shown in Table 4.
øb
øa
– 10 – IEC 61169-52:2015 © IEC 2015
g
f
e
γ
β
α
0,4
0,4
Detail A
A
h
IEC
Figure 4 – Gauge for outer contact
Table 4 – Dimensions of gauge for outer contact
Ref. Gauge A Gauge B
(For sizing purpose)
（For retention purpose）
+5
Mass of gauge：600 g
mm mm
Min. Max. Min. Max.
a 2,41 2,425 2,42 2,425
b 2,875 2,88 2,92 2,925
c 3,04 3,05 2,99 3,00
d 1,58 1,62 1,58 1,62
e 1,63 1,64 1,56 1,57
f 2,30 2,305 2,255 2,26
g 2,65 2,66 2,65 2,66
h 0,135 0,14 0,13 0,23
α 32° 32,5° 27° 33°
β 15,5° 16° 14° 14,5°
γ 69° 71° 69° 71°
Material: steel, polished.
Test procedure:
a) Sizing test
The gauge A should insert the outer contact once, this is a sizing operation.
b) Insertion test
Following the sizing operation, if specified in the detail specification, the force necessary to
insert gauge A fully
...