1、BRITISH STANDARD BS EN 122120:1996 Incorporating Amendment No. 1 BSCECC 22120:1993 renumbered Harmonized system of quality assessment for electronic components Sectional specification: Radiofrequency coaxial connectors SeriesBNC The European Standard EN 122120:1993 has the status of a British Standa
2、rdBSEN122120:1996 This British Standard, having been prepared under the directionof the Electrotechnical Sector Board, was published underthe authority of the Standards Board and comes intoeffect on 15December1996 BSI 10-1999 The following BSI references relate to the work on this standard: Committe
3、e reference EPL/46/4 Draft announced in BSI Update, April 1996 ISBN 0 580 22519 4 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee EPL/46, Cables, wires and waveguides, RF connectors and accessories for communication and s
4、ignalling, to subcommittee EPL/46/4, RFconnectors, upon which the following bodies were represented: AEA Technology BEAMA Electrical Cable together with the voting report, circulated as document CECC (Secretariat)3368 it was approved by CECC as EN122120 on28June1993. The following dates were fixed:
5、Contents Page Foreword 2 Section 1. Scope Section 2. Mating face and gauge information 2.1 Dimensions General purpose connectors 8 2.1.1 Plug 8 2.1.2 Socket 9 2.2 Gauges for general purpose connectors 10 2.2.1 Gauge for outer contact of plug 10 2.2.2 Gauge for female centre contact 11 2.2.3 Engageme
6、nt and separation gauge formaleconnector 12 2.3 Dimensions standard test connectors (Grade 0) 13 2.3.1 Test plug 13 2.3.2 Test socket 15 Section 3. Properties 3.1 Ratings and characteristics 17 Section 4. Test conditions and severities 4.1 Measurement and recovery conditions 19 4.2 Visual examinatio
7、n 19 4.3 Dimensions 19 4.3.1 Outline dimensions and mass 19 4.3.2 Dimensions and materials (piece-parts) 19 4.3.3 Gauging procedures 19 4.4 Electrical tests and measurements 19 4.4.1 Reflection factor (r) 19 4.4.2 Contact resistance 19 4.4.3 Outer conductor continuity 19 4.4.4 Insulation resistance
8、20 4.4.5 Voltage proof 20 4.4.6 Voltage proof combined with water immersion 20 4.4.7 RF high potential withstanding voltage 20 4.4.8 Screening effectiveness 20 4.4.9 Discharge test (corona) 20 4.5 Mechanical tests and measurements 21 4.5.1 Gauge retention force (male and female resilient contacts) 2
9、1 4.5.2 Contact captivation (without cable attached) 21 4.5.3 Static load 21 latest date of announcement of the EN at national level (doa) 1993-11-08 latest date of publication of an identical national standard a (dop) 1994-05-08 latest date of withdrawal of conflicting national standards a (dow) 19
10、95-05-08 a National standard (excluding national implementation of IECQ specifications)EN122120:1993 BSI 10-1999 3 Page 4.5.4 Engagement and separation 21 4.5.5 Mechanical tests on cable clamping device 22 4.5.6 Tensile strength of coupling mechanism 22 4.5.7 Compatibility, mechanical 22 4.5.9 Bendi
11、ng moment 22 4.6 Environmental tests and measurements 23 4.6.1 Soldering 23 4.6.2 Bump 23 4.6.3 Vibration 24 4.6.4 Shock 24 4.6.5 Climatic tests 24 4.6.6 Damp heat, steady state 26 4.6.7 Rapid change of temperature 26 4.6.8 Sealing (panel and barrier sealed connectors) 27 4.6.9 Sealing (hermetically
12、 sealed connectors) 27 4.6.10 Salt mist 27 4.6.11 Dust 27 4.6.12 Industrial atmosphere test 27 4.7 Endurance tests 27 4.7.1 Mechanical endurance 27 4.7.2 High temperature endurance 28 4.8 Resistance to solvents and contaminating fluids 28 Section 5. Quality assessment procedures 5.1 Test schedules a
13、nd inspection requirements Series BNC 30 Figure 1 Plug 8 Figure 2 Details of bayonet lock 8 Figure 3 8 Figure 4 8 Figure 5 Details of male centre contact 8 Figure 6 Socket 9 Figure 7 Details of female centre contact 9 Figure 8 Gauge for outer contact of plug 10 Figure 9 Gauge pin for female centre c
14、ontact 11 Figure 10 Dimensions of gauge for engagement and separation test 12 Figure 11 Test plug 13 Figure 12 Dimensions of centre contact 13 Figure 13 Dimensions of connector 15 Figure 14 Dimensions of centre contact 15 Page Table 1 9 Table 2 10 Table 3 11 Table 4 11 Table 5 12 Table 6 14 Table 7
15、16EN122120:1993 4 BSI 10-1999 Foreword The CENELEC Electronic Components Committee (CECC) is composed of those member countries of the European Committee for Electrotechnical Standardization (CENELEC) who wish to take part in a harmonized System for electronic components of assessed quality. The obj
16、ect of the System is to facilitate international trade by the harmonization of the specifications and quality assessment procedures for electronic components, and by the grant of an internationally recognized Mark, or Certificate, of Conformity. The components produced under the System are thereby a
17、cceptable in all member countries without further testing. This specification has been formally approved by the CECC, and has been prepared for those countries taking part in the System who wish to issue national harmonized specifications for RADIO FREQUENCY COAXIAL CONNECTORS SERIES BNC. It should
18、be read in conjunction with the current regulations for the CECC System. At the date of printing of this specification, the member countries of the CECC are Austria, Belgium, Denmark, Finland, France, Germany, Ireland, Italy, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the Unit
19、ed Kingdom, and copies of it can be obtained from the addresses shown on the blue fly sheet. Preface This Sectional Specification (SS) was prepared by CECC Working Group22: RF Connectors. It is based, wherever possible, on the Publications of the International Electrotechnical Commission and in part
20、icular on IEC169-8. This SS and its associated blank detail specification is specific to Series BNC radio frequency connectors and their related accessories. The text of this specification was circulated to the CECC for voting in the document indicated below and was ratified by the President of the
21、CECC for printing as a CECC Specification. Series BNC connectors have a characteristic impedance of507 and are normally used for low-power quick connect/disconnect applications in conjunction with flexible coaxial cables having a diameter over the dielectric of between2,97mm to3,7mm. The connectors
22、are useable up to a frequency of at least4GHz and may be used at higher frequencies if a reflection factor greater than0,13 for straight connectors and0,15 for right-angle connectors can be tolerated. Document Date of Voting Report on the Voting CECC(Secretariat)2625 December 1990 CECC(Secretariat)2
23、716EN122120:1993 BSI 10-1999 5 Document numbering for r.f. connector specifications follows2.2 of CECC00700-IV, in order to permit the issue of more than nine sectional specifications. The approved numbering system applicable to r.f. connector specifications is illustrated in the diagram below. NOTE
24、A detail specification is a “completed” blank detail specification.6 blankEN122120:1993 BSI 10-1999 7 Section 1. Scope This SS provides information and rules for the preparation of detail specifications (DS) for r.f. coaxial connectors Series BNC. It prescribes the mating face dimensions for general
25、 purpose Grade2 connectors, dimensional details for standard test connectors, Grade0, together with gauging information and the mandatory tests selected from CECC22000 applicable to all DSs relating to Series BNC connectors. This specification indicates the recommended performance characteristics to
26、 be considered when writing a DS and covers test schedules and inspection requirements for Assessment Levels M, H and U.EN122120:1993 8 BSI 10-1999 Section 2. Mating face and gauge information 2.1 Dimensions General purpose connectors Inch dimensions are original dimensions. All undimensioned pictor
27、ial configurations are for reference purposes only. 2.1.1 Plug Figure 1 Plug (for dimensions seeTable 1) Figure 2 Details of bayonet lock Figure 3 Figure 4 Details of alternative coupling grooves Figure 5 Details of male centre contact Notes on page 9.EN122120:1993 BSI 10-1999 9 Table 1 2.1.2 Socket
28、 Ref. mm inch Note Min. Max. Min. Max. a b c d e f g h m q t v w x y z aa ab ac af 9,78 4,83 1,32 5,33 5,28 0,15 0,08 2,06 1,98 4,57 3,15 0,46 2,31 2,31 11,76 10,01 1,14 9,91 1,37 5,84 5,79 1,02 2,21 4,67 8,18 0,56 2,46 2,46 12,01 10,16 1,24 0,64 0,385 0,190 0,052 0,210 0,208 0,006 0,003 0,081 0,078
29、 0,180 0,124 0,018 0,091 0,091 0,463 0,394 0,045 0,390 0,054 0,230 0,228 0,040 0,087 0,184 0,322 0,022 0,097 0,097 0,473 0,400 0,049 0,025 9/diam 3/9/diam 9/diam 9/diam diam 9/diam 6 6 6 6/rad NOTE 1Mechanical and electrical reference plane. NOTE 3Slotted and flared to meet electrical and mechanical
30、 requirements including gauge test according to 2.2.1. NOTE 6It is permitted to use either Figure 3 or Figure 4. NOTE 7Sealing gasket to meet required electrical and environmental performance. NOTE 9Diameters on MMC shall be on or be capable of taking up a common axis. Figure 6 Socket (for dimension
31、s see Table 2) Figure 7 Details of female centre contactEN122120:1993 10 BSI 10-1999 Table 2 2.2 Gauges for general purpose connectors Inch dimensions are original dimensions. All undimensioned pictorial configurations are for reference purposes only. 2.2.1 Gauge for outer contact of plug Ref. mm in
32、ch Note Min. Max. Min. Max. a b c d e f g h k m p r s t u v ac ag 9,60 8,10 4,72 4,78 4,95 2,06 10,52 8,79 5,18 8,31 8,31 10,97 1,91 9,70 8,15 4,72 5,23 5,28 0,15 2,21 6,50 9,04 5,28 8,51 8,46 11,07 2,05 0,378 0,319 0,186 0,188 0,195 0,081 0,414 0,346 0,204 0,327 0,327 0,432 0,075 0,382 0,321 0,186
33、0,206 0,208 0,006 0,087 0,256 0,356 0,208 0,335 0,333 0,436 0,081 9/diam 9/diam 9/diam 3/9/diaz 8 diam 4/diam diam 9/diam 9 diam NOTE 1Mechanical and electrical reference plane. NOTE 3Slotted and closed to meet electrical and mechanical requirements including gauge test according to 2.2.2. NOTE 4Applies only when dielectric extends beyond reference plane. NOTE 8Chamfer or radius. NOTE 9Diameters on MMC shall be on or capable of taking up a common axis. Figure 8 Gauge for outer contact of plug
