BS QC 960401-1992 Specification for harmonized system of quality assessment for electronic components Blank detail specification electromechanical switches for use in electronic eq.pdf

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1、BRITISH STANDARD BS QC 960401:1992 IEC1020-5-1: 1991 Specification for Harmonized system of quality assessment for electronic components Blankdetail specification Electromechanical switches for use in electronic equipment Blank detail specification for pushbutton switchesBSQC960401:1992 BSI 10-1999

2、ISBN 0 580 35621 3 Amendments issued since publication Amd. No. Date CommentsBSQC960401:1992 BSI 10-1999 i Contents Page National foreword ii Section 1. Blank detail specification Introduction 1 1 General data 3 2 Inspection requirements 4 Table 1 Test schedule for lot-by-lot inspection 5 Table 2 Te

3、st schedule for periodic inspections 6BSQC960401:1992 ii BSI 10-1999 National foreword This British Standard has been prepared under the direction of the Electronic Components Standards Policy Committee (ECL/-). It is identical with IEC1020-5-1:1991 (QC960401), “Electromechanical switches for use in

4、 electronic equipment Part5: Sectional specification for pushbutton switches Section1:Blank detail specification” published by the International Electrotechnical Commission (IEC) and is a harmonized specification in the IECQ System of quality assessment for electronic components. IEC1020-5-1 was pre

5、pared by IEC Sub-Committee48C: “Switches” of Technical Committee No.48: “Electromechanical components for electronic equipment” and the United Kingdom participation in the drafting was provided by Sub-Committee ECL/21/3 “Switches for electronic equipment” of Technical Committee ECL/21 “Electromechan

6、ical components for electronic equipment”. Scope. This standard lists the ratings, characteristics and inspection requirements which shall be included as mandatory requirements in accordance with BS QC960400 in any detail specification for these components. The British Standard which implements the

7、IECQ Rules of Procedure is BS9000“General requirements for a system for electronic components of assessed quality” Part3:1991 “Specification for the national implementation of theIECQSystem”. A British Standard does not purport to include all the necessary provisions of a contract. Users of British

8、Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references International Standard Corresponding British Standard IEC68 BS2011 Environmental testing IEC68-1:1988 BS2011-1.1:1989 General and gu

9、idance (Identical) IEC1020-1:1991 BS QC960000:1992 Electromechanical switches for use in electronic equipment. Part1: Generic specification (Identical) IEC1020-5:1991 BS QC960400:1992 Electromechanical switches for use in electronic equipment. Sectional specification for pushbutton switches (Identic

10、al) Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, pages1 to6 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BSQC9604

11、01:1992 BSI 10-1999 1 Section 1. Blank detail specification Introduction A blank detail specification is a supplementary document to the sectional specification and contains requirements for style, lay-out and minimum content of detail specifications. Detail specifications not complying with these r

12、equirements shall not be considered as being in accordance with the IECQ System nor shall they so be described. The complete requirements for the switches described herein shall correspond to this detail specification and the current issues of IEC1020-1 and IEC1020-5. In the preparation of detail sp

13、ecifications, the content of1.5 of IEC1020-5 shall be taken into account. Pages9 through19 provide the framework for a detail specification which is completed by inserting the necessary information. The numbers between brackets on the first page correspond to the following information which shall be

14、 inserted in the position indicated. Identification of the detail specification The appropriate information for the tests in IEC1020-1 and1020-5 shall be provided in1.2. Values shall be stated for the following ratings and characteristics which are mandatory: electrical endurance; electrical ratings

15、; functional operation; operating characteristics; robustness of actuator; voltage proof. Values shall be stated in1.2 for the following characteristics when the following conditions exist (mandatory it applicable): low air pressure when an altitude rating is declared; logic level endurance when a l

16、ogic level rating is declared; low level endurance when a low level rating is declared; type of seal when a panel seal or an enclosure seal is declared; resistance to soldering heat when the terminals are declared to be solderable; robustness of mounting bushing; robustness of mounting screws; robus

17、tness of terminations; 1 The International Electrotechnical Commission or the national standards organization under whose authority the detail specification is drafted. 2 The IEC or national standards number of the detail specification, date of issue and any further information required by the natio

18、nal system. 3 The number and issue of the IEC or national generic specification. 4 The number and issue of the IEC blank detail specification. Identification of the switch 5 A short description of the type of pushbutton switch which shall include as a minimum the information needed for listing on th

19、e qualified products list. 6 A circuit diagram or short description of the electrical circuit(s). 7 Dimensions important for interchangeability. When space permits, the drawing may also include detailed dimensions. The drawing shall comply with1.5.1 of IEC1020-5. 8 Information on the typical constru

20、ction (when applicable). 9 Assessment level. Ratings and characteristics 10 Basic characteristics of the switch.BSQC960401:1992 2 BSI 10-1999 solderability when the terminals are declared to be solderable; temperature rise when the switch is a heat-dissipating specimen. Detail specification number 2

21、 1 Generic specification number ELECTRONIC COMPONENTS OF ASSESSED QUALITY INACCORDANCE WITH: Blank detail specification number 4 3 Product description 5 Outline drawing Maximum enclosure dimensions (angle of projection . . .) 7 Electrical circuit 6 Constructional details 8 Assessment level 9 NOTE 1S

22、ee figureP for full dimensional requirements. NOTE 2Dimensions are denoted as follows: NOTE 3For detail dimensions, see . NOTE 4Shape is optional within the specified dimensions. Information on the availability of components qualified to this specification is given in the qualified products list.BSQ

23、C960401:1992 BSI 10-1999 3 1 General data 1.1 Dimensions (see 7 on page1. It may be convenient for some of this information to be given in tabular presentation.) 1.2 Ratings and characteristics 1.2.1 Electrical ratings 1.2.2 Environmental ratings 1.2.3 Mechanical characteristics 1.2.4 Electrical cha

24、racteristics Power _V, _A (insert values) Logic level (insert “5V,10 mA” “not applicable”) Low level (insert “30mV,10 mA” “not applicable”) Climatic category ././. (insert values in accordance with IEC68-1) Low air pressure (insert value of test voltage or “not applicable”) Rapid change of temperatu

25、re (insert “applicable” or “not applicable”) Salt mist (insert test duration or “not applicable”) Shock (insert acceleration (. g) and duration or “not applicable”) Vibration (insert acceleration and frequency range or “not applicable”) Functional operation (insert special circuit and detent charact

26、eristics if applicable) Immersion in cleaning solvents (insert “applicable” or “not applicable”) Mass (insert maximum value if applicable) Operating characteristics (insert values for the applicable force and/or movement characteristics) Seal (insert type of seal according to4.14 or4.15 of IEC1020-1

27、 or “not applicable”) Robustness of: actuator (insert force or torque value) mounting bushing (insert torque value or “not applicable”) screw mounting (insert torque value or “not applicable”) termination (insert “22.5 ” or “45 ” if applicable) Solderability (insert type of test according to4.13 of

28、IEC1020-1 or “not applicable”) Capacitance (insert maximum value or “not applicable”) Contact bounce (insert maximum duration or “not applicable”) Contact disturbance (insert “applicable” or “not applicable”) Contact resistance (insert type) (insert . 7 maximum or “not applicable”) Electrical overlo

29、ad (insert “applicable” or “not applicable”) Endurance electrical (insert type test) (insert cycles of operation and any other required test details) logic level (insert cycles of operation or “not applicable”) low level (insert cycles of operation or “not applicable”) mechanical (insert test type)

30、(insert cycles of operation or “not applicable”) Insulation resistance (insert minimum resistance or “not applicable”) Temperature rise (insert “45 C max” or “not applicable”) Voltage proof (insert value of test voltage)BSQC960401:1992 4 BSI 10-1999 1.2.5 Illumination characteristics 1.3 IEC switch

31、type designation Switches covered by this detail specification shall be described by the following in the order shown: a) The IEC publication number for this detail specification; b) (insert and describe additional categories as required). Example of IEC type designation:1020-5-X (insertion) 1.4 Mar

32、king The marking of the switch and package shall be in accordance with the requirements of2.5 of IEC1020-1. (Insert the details of marking on the switch and on the package, including any special marking requirements.) 1.5 Ordering information Orders for switches covered by this specification shall c

33、ontain the following information as a minimum: a) the applicable part number according to1.3; b) “in accordance with IEC1020-5-(X), (X) edition” (insert the number and edition of the detail specification); c) when certified records of released lots are required, include “CERTIFIED RECORDS REQUIRED”.

34、 1.6 Certified records of released lots Insert the information required by3.5.1 of IEC1020-1. 1.7 Additional information (not for inspection purposes) 1.7.1 Safety considerations The user shall consider the suitability of the switch with regard to any safety requirements applicable to the equipment.

35、 1.8 Increased severities or requirements which are additional to those specified in the generic and/or sectional specification NOTEAdditional or increased requirements should be specified only when essential. 1.9 Common features See 7 on page1. 2 Inspection requirements 2.1 Structurally similar dev

36、ices Insert principles of structural similarity for the type covered. 2.2 Pre-conditioning 2.3 Qualification approval inspection Qualification approval inspection requirements shall be in accordance with Table 1 in IEC1020-5 with all details and requirements taken from Table 1 and Table 2 in the det

37、ail specification. Chromaticity (insert values applicable for each colour and each style of display) Field of view (insert “applicable” or “not applicable”) Stray lights (insert “applicable” or “not applicable”) Sunlight readability (insert the applicable test method or “not applicable”) Transmittan

38、cy (insert the cd/m 2limit for each colour and each style of display)BSQC960401:1992 BSI 10-1999 5 2.4 Quality conformance inspection Quality conformance inspection is prescribed in Table 1 for lot-by-lot inspections and in Table 2 for periodic inspections. For visual examination, the clarification

39、of major and minor defects shall be as follows (insert description of defects). 2.5 Sampling procedure details Table 1 Test schedule for lot-by-lot inspection Subclause number and test designation (see note1) D or ND Assessment level IL AQL GROUP A (non-destructive) 4.3.1 4.4.2 4.3.5 4.4.4 4.5.1 4.3

40、.6 Visual examination Contact resistance (see note3) Functional operation Insulation resistance Voltage proof Operating characteristics ND ND ND ND ND ND II II II S2 S2 S2 1% 1% 1% 1% 1% 1% NOTE 1The subclause numbers of the test and performance requirements refer to Part1 of IEC1020, the supplement

41、ary requirements being specified in this part of IEC1020. NOTE 2In this table: D= destructive; ND= non destructive; IL= inspection level; AQL = acceptable quality level. NOTE 3The appropriate test method shall be specified in the detail specification.BSQC960401:1992 6 BSI 10-1999 Table 2 Test schedu

42、le for periodic inspections Subclause number and test designation (see note1) M, MA or WS Conditions of test (see note1) Sample size and criterion of acceptability (see note2) Performance requirements (see note1) p n td c GROUP B (destructive) 3 1 4.13 Solderability (see note3) MA GROUP C (destructi

43、ve) 12 10 1 4.10 4.6.1 4.4.2 4.4.4 4.5.1 4.3.6 4.14 4.15 Electrical endurance (see note3) Temperature rise Contact resistance (see note3) Insulation resistance Voltage proof Operating characteristics Panel seal (see note3) Enclosure seal (see note3) M WS M WS M WS MA MA . . . cycles . . . V, . . . A

44、, load . . . V, . . . A . . . V . . . V 1 1 1 1 1 1 0 0 Sticks/misses k. . . per. . . cycles k 45 C R k. . . m7 R U. . . M7 Leakage current k. . . 4A Within limits No water ingress Leak rate k. . . GROUP D (non-destructive) 4.8 of IEC 1020-5 sunlight readability WS 12 1 GROUP E (destructive) 36 (Re-

45、qualification according to Table 1 of IEC1020-5) NOTE 1The subclause numbers of the test and performance requirements refer to Part1 of IEC1020, the supplementary requirements being specified in this part of IEC1020. NOTE 2In the groups, all specimens shall be subjected to the required tests and all

46、 tests shall be performed in the sequence shown. NOTE 3The appropriate test method shall be specified by the detail specification. NOTE 4In this table: M =test is mandatory MA=test is mandatory if applicable to the switch design WS=test is mandatory when specified by the detail specification n=sampl

47、e size td=test acceptance criterion (permitted number of defectives per test) c=group acceptance criterion (permitted number of defectives per group) p=periodicity in months NA=not applicable NOTE 5When the detail specification includes additional tests, additional test groups may have to be added.b

48、lankBS QC 960401:1992 IEC1020-5-1: 1991 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal

49、Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this BritishStandard would inform the Secretary of the technical committee responsible, the identity of which can be found on the ins

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