Radio-frequency connectors - Part 68: Sectional specification for series TRK bayonet coupling triaxial connectors (IEC 61169-68:2022)

This part of IEC 61169, which is a sectional specification (SS), provides information and rules for the preparation of detail specifications (DS) for series TRK bayonet coupling triaxial connectors. The series TRK bayonet coupling triaxial connectors with the advantages of quick connection and separation, high reliability, small size, good salt characteristics, four polarizations to prevent error-mate etc., can be connected with symmetrically twisted pair cables or triaxial cables. It has been widely used in 1553B data bus systems or other communication systems for digital signal transmission.
It prescribes mating face dimensions for series TRK bayonet coupling triaxial connectors, gauging information and tests selected from IEC 61169-1, applicable to all detail specifications relating to series TRK triaxial 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.
Note: Metric dimension are original dimensions. All undimensioned pictorial configurations are for reference purpose only.

Hochfrequenz-Steckverbinder - Teil 68: Schnittspezifikation für triaxiale Steckverbinder mit Bajonettkupplung der Serie TRK (IEC 61169-68:2022)

Connecteurs pour fréquences radioélectriques - Partie 68: Spécification intermédiaire relative aux connecteurs triaxiaux à accouplement à baïonnette de série TRK (IEC 61169-68:2022)

IEC 61169-68:2022, qui est une spécification intermédiaire (SI), fournit des informations et des règles relatives à l’établissement des spécifications particulières (SP) pour les connecteurs triaxiaux à accouplement à baïonnette de série TRK. Les connecteurs triaxiaux à accouplement à baïonnette de série TRK très fiables, de petite taille et qui présentent des avantages de connexion et de désaccouplement rapides, de bonnes caractéristiques salines et sont dotés de quatre polarisations pour éviter les erreurs d’accouplement, etc., peuvent être connectés à des câbles triaxiaux ou des câbles à paires torsadées symétriques. Le présent document indique les caractéristiques de performance recommandées à prendre en considération lors de la rédaction d’une spécification particulière et couvre les programmes d’essais et les exigences de contrôle pour les niveaux d’assurance M et H.

Radiofrekvenčni konektorji - 68. del: Področna specifikacija za triaksialne priključke bajonetne spojke serije TRK (IEC 61169-68:2022)

Ta del standarda IEC 61169, ki je področna specifikacija (SS), podaja informacije in določa pravila za pripravo podrobnih specifikacij (DS) za triaksialne priključke bajonetne spojke serije TRK. Triaksialni priključki bajonetne spojke serije TRK s prednostmi hitre povezave in ločitve, visoke zanesljivosti, majhnosti, dobrih lastnosti v slanem okolju, štirih polarizacij za preprečevanje napak itd., se lahko povežejo s simetričnimi paricami ali triaksialnimi kabli. Obsežno se uporablja v sistemih podatkovnih vodil 1553B ali drugih komunikacijskih sistemih za digitalni prenos signala.
Predpisuje mere spojne površine za triaksialne priključke bajonetne spojke serije TRK, informacije o merjenju in preskuse, izbrane iz standarda IEC 61169-1, ki se uporabljajo za vse podrobne specifikacije v zvezi s triaksialnimi priključki serije TRK.
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.
Opomba: Izvirne mere so podane v metričnih enotah. Vse nedimenzionirane slikovne konfiguracije so podane samo v referenčne namene.

General Information

Status
Published
Publication Date
20-Apr-2022
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
08-Apr-2022
Due Date
13-Jun-2022
Completion Date
21-Apr-2022

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SLOVENSKI STANDARD
SIST EN IEC 61169-68:2022
01-junij-2022
Radiofrekvenčni konektorji - 68. del: Področna specifikacija za triaksialne
priključke bajonetne spojke serije TRK (IEC 61169-68:2022)

Radio-frequency connectors - Part 68: Sectional specification for series TRK bayonet

coupling triaxial connectors (IEC 61169-68:2022)

Hochfrequenz-Steckverbinder - Teil 68: Schnittspezifikation für triaxiale Steckverbinder

mit Bajonettkupplung der Serie TRK (IEC 61169-68:2022)

Connecteurs pour fréquences radioélectriques - Partie 68: Spécification intermédiaire

relative aux connecteurs triaxiaux à accouplement à baïonnette de série TRK (IEC
61169-68:2022)
Ta slovenski standard je istoveten z: EN IEC 61169-68:2022
ICS:
33.120.30 Radiofrekvenčni konektorji RF connectors
(RF)
SIST EN IEC 61169-68:2022 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 61169-68:2022
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SIST EN IEC 61169-68:2022
EUROPEAN STANDARD EN IEC 61169-68
NORME EUROPÉENNE
EUROPÄISCHE NORM April 2022
ICS 33.120.30
English Version
Radio-frequency connectors - Part 68: Sectional specification for
series TRK bayonet coupling triaxial connectors
(IEC 61169-68:2022)

Connecteurs pour fréquences radioélectriques - Partie 68: Hochfrequenz-Steckverbinder - Teil 68:

Spécification intermédiaire relative aux connecteurs Rahmenspezifikation für triaxiale Steckverbinder mit

triaxiaux à accouplement à baïonnette de série TRK Bajonettkupplung der Serie TRK

(IEC 61169-68:2022) (IEC 61169-68:2022)

This European Standard was approved by CENELEC on 2022-03-25. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels

© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 61169-68:2022 E
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SIST EN IEC 61169-68:2022
EN IEC 61169-68:2022 (E)
European foreword

The text of document 46F/596/FDIS, future edition 1 of IEC 61169-68, prepared by SC 46F "RF and

microwave passive components" of IEC/TC 46 "Cables, wires, waveguides, RF connectors, RF and

microwave passive components and accessories" was submitted to the IEC-CENELEC parallel vote

and approved by CENELEC as EN IEC 61169-68:2022.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2022-12-25

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2025-03-25

document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Any feedback and questions on this document should be directed to the users’ national committee. A

complete listing of these bodies can be found on the CENELEC website.
Endorsement notice

The text of the International Standard IEC 61169-68:2022 was approved by CENELEC as a European

Standard without any modification.
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SIST EN IEC 61169-68:2022
EN IEC 61169-68:2022 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

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.

NOTE 1 Where 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 61169-1 2013 Radio frequency connectors - Part 1: EN 61169-1 2013
Generic specification - General
requirements and measuring methods
IEC 61169-1-5 - Radio frequency connectors - Part 1-5: EN IEC 61169-1-5 -
Electrical test methods - Rise time
degradation
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SIST EN IEC 61169-68:2022
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SIST EN IEC 61169-68:2022
IEC 61169-68
Edition 1.0 2022-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radio-frequency connectors –
Part 68: Sectional specification for series TRK bayonet coupling triaxial
connectors
Connecteurs pour fréquences radioélectriques –
Partie 68: Spécification intermédiaire relative aux connecteurs triaxiaux à
accouplement à baïonnette de série TRK
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.120.30 ISBN 978-2-8322-1079-9

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN IEC 61169-68:2022
– 2 – IEC 61169-68:2022 © IEC 2022
CONTENTS

FOREWORD ........................................................................................................................... 4

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms and definitions ...................................................................................................... 6

4 Mating face and gauge information .................................................................................. 7

4.1 Mating face dimensions .......................................................................................... 7

4.1.1 Plug connector ................................................................................................ 7

4.1.2 Receptacle connector .................................................................................... 11

4.1.3 Coaxial pin contact ........................................................................................ 14

4.1.4 Coaxial socket contact ................................................................................... 14

4.2 Gauges for resilient contact .................................................................................. 15

4.2.1 Gauge for socket centre contact .................................................................... 15

4.2.2 Gauge for socket intermediate contact ........................................................... 16

5 Quality assessment procedure ....................................................................................... 17

5.1 General ................................................................................................................. 17

5.2 Rating and characteristics ..................................................................................... 17

5.3 Test schedule and inspection requirements........................................................... 19

5.3.1 Acceptance tests ........................................................................................... 19

5.3.2 Periodic tests ................................................................................................. 20

5.3.3 Procedures for qualification approval ............................................................. 21

6 Instructions for preparation of detail specifications (DS) ................................................ 22

6.1 General ................................................................................................................. 22

6.2 Identification of the component ............................................................................. 22

6.3 Performance ......................................................................................................... 22

6.4 Marking, ordering information and related matters ................................................ 22

6.5 Selection of tests, test conditions and severities ................................................... 22

6.6 Blank detail specification pro-forma for series TRK bayonet coupling triaxial

connectors ............................................................................................................ 23

Figure 1 – Plug connector ....................................................................................................... 7

Figure 2 – Locating grooves polarization of plug connector ..................................................... 8

Figure 3 – A polarization mating face of plug connector with three bayonets ........................... 8

Figure 4 – D polarization mating face of plug connector with four bayonets ............................. 9

Figure 5 – Unfolded drawing of A polarization bayonet groove of plug connector .................. 10

Figure 6 – Unfolded drawing of D polarization bayonet groove of plug connector .................. 10

Figure 7 – Receptacle connector ........................................................................................... 11

Figure 8 – Locating keys polarization of receptacle connector ............................................... 12

Figure 9 – A polarization mating face of receptacle connector with three bayonets ............... 13

Figure 10 – D polarization mating face of receptacle connector with four bayonets ............... 13

Figure 11 – Coaxial pin contact ............................................................................................. 14

Figure 12 – Coaxial socket contact ....................................................................................... 15

Figure 13 – Gauge for socket centre contact ......................................................................... 15

Figure 14 – Gauge for socket intermediate contact ............................................................... 16

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SIST EN IEC 61169-68:2022
IEC 61169-68:2022 © IEC 2022 – 3 –

Table 1 – Dimensions of plug connector ................................................................................. 7

Table 2 – A polarization mating face dimensions of plug connector with three bayonets.......... 9

Table 3 – D polarization mating face dimensions of plug connector with four bayonets ........... 9

Table 4 – Unfolded drawing dimensions of A polarization bayonet groove of plug

connector .............................................................................................................................. 10

Table 5 – Unfolded drawing dimensions of D polarization bayonet groove of plug

connector .............................................................................................................................. 11

Table 6 – Dimensions of receptacle connector ...................................................................... 12

Table 7 – A polarization mating face dimensions of receptacle connector with three

bayonets ............................................................................................................................... 13

Table 8 – D polarization mating face dimensions of receptacle connector with four

bayonets ............................................................................................................................... 14

Table 9 – Dimensions of coaxial pin contact ......................................................................... 14

Table 10 – Dimensions of coaxial socket contact .................................................................. 15

Table 11 – Dimensions of gauge for socket centre contact .................................................... 15

Table 12 – Dimensions of gauge for socket intermediate contact .......................................... 16

Table 13 – Ratings and characteristics ................................................................................. 17

Table 14 – Acceptance tests ................................................................................................. 20

Table 15 – Periodic tests ...................................................................................................... 20

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SIST EN IEC 61169-68:2022
– 4 – IEC 61169-68:2022 © IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RADIO-FREQUENCY CONNECTORS –
Part 68: Sectional specification for series TRK bayonet
coupling triaxial 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.

IEC 61169-68 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/596/FDIS 46F/610/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.
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SIST EN IEC 61169-68:2022
IEC 61169-68:2022 © IEC 2022 – 5 –

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/standardsdev/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,
• replaced by a revised edition, or
• amended.
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SIST EN IEC 61169-68:2022
– 6 – IEC 61169-68:2022 © IEC 2022
RADIO-FREQUENCY CONNECTORS –
Part 68: Sectional specification for series TRK bayonet
coupling triaxial 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 series TRK bayonet coupling triaxial

connectors. The series TRK bayonet coupling triaxial connectors having the advantages of

quick connection and separation, high reliability, small size, good salt characteristics, four

polarizations to prevent error-mate etc., can be connected to symmetrically twisted pair cables

or triaxial cables. They have been widely used in 1553B data bus systems or other

communication systems for digital signal transmission.

It specifies mating face dimensions for series TRK bayonet coupling triaxial connectors, gauging

information and tests selected from IEC 61169-1, applicable to all detail specifications relating

to series TRK triaxial 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.

NOTE Metric dimension 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 61169-1-5, Radio frequency connectors – Part 1-5: Electrical test methods – Rise time

degradation
3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 61169-1 and the

following apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
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SIST EN IEC 61169-68:2022
IEC 61169-68:2022 © IEC 2022 – 7 –
3.1
coaxial pin contact

connecting part with a coaxial structure, the outer conductor of which is a pin and the inner

conductor is a socket
3.2
coaxial socket contact

connecting part with a coaxial structure, the outer conductor of which is a socket and the inner

conductor is a pin
4 Mating face and gauge information
4.1 Mating face dimensions
4.1.1 Plug connector
4.1.1.1 General

The mating face of plug connector is shown in Figure 1 and its dimensions are shown in Table 1.

NOTE 1 Slot design of alignment fingers is optional.
NOTE 2 See Figure 11 and Figure 12 for coaxial contact requirements.
Figure 1 – Plug connector
Table 1 – Dimensions of plug connector
Ref. mm
Min. Max.
a - 5,10
b 6,30 8,10
c 7,14 7,70
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SIST EN IEC 61169-68:2022
– 8 – IEC 61169-68:2022 © IEC 2022
4.1.1.2 Locating grooves polarization of plug connector

Seen from the mating face, the locating grooves of the plug connector can be divided into A, B,

C and D four polarizations, which are shown in Figure 2.
A polarization B polarization C polarization D polarization
NOTE Angles for reference.
Figure 2 – Locating grooves polarization of plug connector
4.1.1.3 Locating groove structure of plug connector

A polarization mating face of plug connector with three bayonets shall be in accordance with

Figure 3, and its dimensions are shown in Table 2. The mating face of B polarization and C

polarization is similar to that of A polarization, but the position of the locating grooves shall be

the same as that of B polarization and C polarization in 4.1.1.2 respectively.

D polarization mating face of plug connector with four bayonets shall be in accordance with

Figure 4 , and its dimensions are shown in Table 3.

The unfolded drawing of A polarization bayonet groove of plug connector shall be in accordance

with Figure 5, and its dimensions are shown in Table 4. The unfolded design of the positioning

grooves for B polarization and C polarization is similar to that of A polarization, but the position

of the positioning grooves shall be the same as for B polarization and C polarization in 4.1.1.2

respectively.

The unfolded drawing of D polarization bayonet groove of plug connector shall be in accordance

with Figure 6, and its dimensions are shown in Table 5.

NOTE The mating face of B polarization and C polarization is similar to that of A polarization, but the position of

the locating grooves are the same as that of B polarization and C polarization in 4.1.1.2 respectively.

Figure 3 – A polarization mating face of plug connector with three bayonets
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SIST EN IEC 61169-68:2022
IEC 61169-68:2022 © IEC 2022 – 9 –

Table 2 – A polarization mating face dimensions of plug connector with three bayonets

Ref. mm
Min. Max.
a 1,95 2,10
b Note
c 124° 126°
d 124° 126°
e Note
f 1,42 1,73
NOTE To mate with jack connector in Figure 9.
Figure 4 – D polarization mating face of plug connector with four bayonets

Table 3 – D polarization mating face dimensions of plug connector with four bayonets

Ref. mm
Min. Max.
a Note
b Note
NOTE To mate with jack connector in Figure 10.
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SIST EN IEC 61169-68:2022
– 10 – IEC 61169-68:2022 © IEC 2022

NOTE The unfolded design of the positioning grooves for B polarization and C polarization is similar to that of A

polarization, but the position of the positioning grooves are the same as for B polarization and C polarization in

4.1.1.2 respectively.
Figure 5 – Unfolded drawing of A polarization bayonet groove of plug connector
Table 4 – Unfolded drawing dimensions of A polarization
bayonet groove of plug connector
Ref. mm
Min. Max.
a 15°
b 0,38 -
c 5,51 -
d 45°
Figure 6 – Unfolded drawing of D polarization bayonet groove of plug connector
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SIST EN IEC 61169-68:2022
IEC 61169-68:2022 © IEC 2022 – 11 –
Table 5 – Unfolded drawing dimensions of D polarization
bayonet groove of plug connector
Ref. mm
Min. Max.
a 15°
b 0,38 -
c 5,51 -
d 45°
e 1,42 -
f Note
NOTE To mate with jack connector in Figure 10.
4.1.2 Receptacle connector
4.1.2.1 General

The mating face of receptacle connector is shown in Figure 7 and its dimensions are shown in

Table 6.
NOTE See Figure 11 and Figure 12 for coaxial contact requirements.
Figure 7 – Receptacle connector
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SIST EN IEC 61169-68:2022
– 12 – IEC 61169-68:2022 © IEC 2022
Table 6 – Dimensions of receptacle connector
Ref. mm
Min. Max.
a 0,25 -
b - 0,92
b (alternate design) - 0,45
c 14° 22°
d 5,33 5,56
e 6,04 6,12
f 10,70 -
4.1.2.2 Locating keys polarization of receptacle connector

Seen from the mating face, the locating keys of the receptacle connector can be divided into A,

B, C and D four polarizations, which are shown in Figure 8.
A polarization B polarization C polarization D polarization
NOTE Angles for reference.
Figure 8 – Locating keys polarization of receptacle connector
4.1.2.3 Locating key structure of receptacle connector

A polarization mating face of receptacle connector with three bayonets shall be in accordance

with Figure 9, and its dimensions are shown in Table 7. The mating face of B polarization and

C polarization is similar to that of A polarization, but the position of the locating keys shall be

the same as that of B polarization and C polarization in 4.1.2.2 respectively.

D polarization mating face of receptacle connector with four bayonets shall be in accordance

with Figure 10, and its dimensions are shown in Table 8.
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SIST EN IEC 61169-68:2022
IEC 61169-68:2022 © IEC 2022 – 13 –
NOTE 1 0,127 max flat to meet reference b.

NOTE 2 The mating face of B polarization and C polarization is similar to that of A polarization, but the position of

the locating keys are the same as that of B polarization and C polarization in 4.1.2.2 respectively.

Figure 9 – A polarization mating face of receptacle connector with three bayonets

Table 7 – A polarization mating face dimensions
of receptacle connector with three bayonets
Ref. mm
Min. Max.
a 10,70 10,80
b 4,18 4,36
c 14° 22°
d 6,04 6,12
e - -
f 1,83 1,93
g 8,10 8,20
h 124° 126°
j 124° 126°
k 1,22 1,32
NOTE 0,127 max flat to meet reference b.

Figure 10 – D polarization mating face of receptacle connector with four bayonets

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SIST EN IEC 61169-68:2022
– 14 – IEC 61169-68:2022 © IEC 2022
Table 8 – D polarization mating face dimensions of
receptacle connector with four bayonets
Ref. mm
Min. Max.
a 10,70 10,80
b 4,18 4,36
c 14° 22°
d 6,04 6,12
e - -
f 1,22 1,32
g 8,10 8,20
h 89.5° 90.5°
4.1.3 Coaxial pin contact

The mating face of coaxial pin contact is shown in Figure 11 and its dimensions are shown in

Table 9.
NOTE Slot design is optional.
Figure 11 – Coaxial pin contact
Table 9 – Dimensions of coaxial pin contact
Ref. mm
Min. Max.
a 7,09 -
b 0,35 -
c 1,82 1,88
d 1,00 1,55
4.1.4 Coaxial socket contact

The mating face of coaxial socket contact is shown in Figure 12 and its dimensions are shown

in Table 10.
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SIST EN IEC 61169-68:2022
IEC 61169-68:2022 © IEC 2022 – 15 –
NOTE Slot design is optional.
Figure 12 – Coaxial socket contact
Table 10 – Dimensions of coaxial socket contact
Ref. mm
Min. Max.
a 0,18 0,99
b - 2,70
c 0,597 0,623
4.2 Gauges for resilient contact
4.2.1 Gauge for socket centre contact

The gauge for socket centre contact of connector is shown in Figure 13 and its dimensions are

shown in Table 11.
Figure 13 – Gauge for socket centre contact
Table 11 – Dimensions of gauge for socket centre contact
Ref. Gauge A Gauge B Gauge C
(For sizing purpose) (For insertion purpose) (For separation purpose)
Min. Max. Min. Max. Min. Max.
D 0,623 0,628 0,623 0,628 0,592 0,597
Material: steel, polished.
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SIST EN IEC 61169-68:2022
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