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1、BRITISH STANDARD BS QC 960401:1992 IEC 1020-5-1: 1991 Specification for Harmonized system of quality assessment for electronic components Blank detail specification Electromechanical switches for use in electronic equipment Blank detail specification for pushbutton switches Licensed Copy: London Sou
2、th Bank University, London South Bank University, Sat Dec 09 01:43:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS QC 960401:1992 BSI 10-1999 ISBN 0 580 35621 3 Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Sat De
3、c 09 01:43:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS QC 960401:1992 BSI 10-1999i Contents Page National forewordii Section 1. Blank detail specification Introduction1 1General data3 2Inspection requirements4 Table 1 Test schedule for lot-by-lot inspection5 Table 2 Test schedule for periodic i
4、nspections6 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:43:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS QC 960401:1992 ii BSI 10-1999 National foreword This British Standard has been prepared under the direction of the Electronic Components Standards
5、Policy Committee (ECL/-). It is identical with IEC 1020-5-1:1991 (QC 960401), “Electromechanical switches for use in electronic equipment Part 5: Sectional specification for pushbutton switches Section 1: Blank detail specification” published by the International Electrotechnical Commission (IEC) an
6、d is a harmonized specification in the IECQ System of quality assessment for electronic components. IEC 1020-5-1 was prepared by IEC Sub-Committee 48C: “Switches” of Technical Committee No. 48: “Electromechanical components for electronic equipment” and the United Kingdom participation in the drafti
7、ng was provided by Sub-Committee ECL/21/3 “Switches for electronic equipment” of Technical Committee ECL/21 “Electromechanical components for electronic equipment”. Scope. This standard lists the ratings, characteristics and inspection requirements which shall be included as mandatory requirements i
8、n accordance with BS QC 960400 in any detail specification for these components. The British Standard which implements the IECQ Rules of Procedure is BS 9000 “General requirements for a system for electronic components of assessed quality” Part 3:1991 “Specification for the national implementation o
9、f the IECQ System”. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references Inte
10、rnational StandardCorresponding British Standard IEC 68BS 2011 Environmental testing IEC 68-1:1988BS 2011-1.1:1989 General and guidance (Identical) IEC 1020-1:1991BS QC 960000:1992 Electromechanical switches for use in electronic equipment. Part 1: Generic specification (Identical) IEC 1020-5:1991BS
11、 QC 960400:1992 Electromechanical switches for use in electronic equipment. Sectional specification for pushbutton switches (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 6 and a back cover. This standard has been updated (see co
12、pyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:43:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS QC 960401:1992 BSI 10-19991 Se
13、ction 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 requirements shall not be
14、 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 IEC 1020-1 and IEC 1020-5. In the preparation of detail specifications, the cont
15、ent of 1.5 of IEC 1020-5 shall be taken into account. Pages 9 through 19 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 inserted in the p
16、osition indicated. Identification of the detail specification The appropriate information for the tests in IEC 1020-1 and 1020-5 shall be provided in 1.2. Values shall be stated for the following ratings and characteristics which are mandatory: electrical endurance; electrical ratings; functional op
17、eration; operating characteristics; robustness of actuator; voltage proof. Values shall be stated in 1.2 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 logic level rat
18、ing 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; robustness of termi
19、nations; 1The International Electrotechnical Commission or the national standards organization under whose authority the detail specification is drafted. 2The IEC or national standards number of the detail specification, date of issue and any further information required by the national system. 3 Th
20、e number and issue of the IEC or national generic specification. 4The number and issue of the IEC blank detail specification. Identification of the switch 5A short description of the type of pushbutton switch which shall include as a minimum the information needed for listing on the qualified produc
21、ts list. 6A circuit diagram or short description of the electrical circuit(s). 7Dimensions important for interchangeability. When space permits, the drawing may also include detailed dimensions. The drawing shall comply with 1.5.1 of IEC 1020-5. 8Information on the typical construction (when applica
22、ble). 9 Assessment level. Ratings and characteristics 10 Basic characteristics of the switch. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:43:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS QC 960401:1992 2 BSI 10-1999 solderability when the terminals are
23、 declared to be solderable; temperature rise when the switch is a heat-dissipating specimen. Detail specification number2 1 Generic specification number ELECTRONIC COMPONENTS OF ASSESSED QUALITY IN ACCORDANCE WITH: Blank detail specification number4 3 Product description5 Outline drawing Maximum enc
24、losure dimensions (angle of projection . . .) 7Electrical circuit6 Constructional details8 Assessment level9 NOTE 1See figure P for full dimensional requirements. NOTE 2Dimensions are denoted as follows: NOTE 3For detail dimensions, see . NOTE 4Shape is optional within the specified dimensions. Info
25、rmation on the availability of components qualified to this specification is given in the qualified products list. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:43:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS QC 960401:1992 BSI 10-19993 1 General data 1
26、.1 Dimensions (see 7 on page 1. 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 characteristics Power_V, _A (insert values) L
27、ogic level(insert “5 V, 10 mA” “not applicable”) Low level(insert “30 mV, 10 mA” “not applicable”) Climatic category././. (insert values in accordance with IEC 68-1) Low air pressure(insert value of test voltage or “not applicable”) Rapid change of temperature(insert “applicable” or “not applicable”
28、) 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 characteristics if applicable) Immersion in cleaning s
29、olvents(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 to 4.14 or 4.15 of IEC 1020-1 or “not applicable”) Robustness of: actuator(in
30、sert 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 to 4.13 of IEC 1020-1 or “not applicable”) Capacitance(insert max
31、imum 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 overload(insert “applicable” or “not applicable”) Endurance ele
32、ctrical (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)(insert cycles of operation or “not applicable”) Insulation re
33、sistance(insert minimum resistance or “not applicable”) Temperature rise(insert “45 C max” or “not applicable”) Voltage proof(insert value of test voltage) Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:43:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS QC
34、960401:1992 4 BSI 10-1999 1.2.5 Illumination characteristics 1.3 IEC switch 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 categorie
35、s as required). Example of IEC type designation: 1020-5-X (insertion) 1.4 Marking The marking of the switch and package shall be in accordance with the requirements of 2.5 of IEC 1020-1. (Insert the details of marking on the switch and on the package, including any special marking requirements.) 1.5
36、 Ordering information Orders for switches covered by this specification shall contain the following information as a minimum: a) the applicable part number according to 1.3; b) “in accordance with IEC 1020-5-(X), (X) edition” (insert the number and edition of the detail specification); c) when certi
37、fied records of released lots are required, include “CERTIFIED RECORDS REQUIRED”. 1.6 Certified records of released lots Insert the information required by 3.5.1 of IEC 1020-1. 1.7 Additional information (not for inspection purposes) 1.7.1 Safety considerations The user shall consider the suitabilit
38、y of the switch with regard to any safety requirements applicable to the equipment. 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 Com
39、mon features See 7 on page 1. 2 Inspection requirements 2.1 Structurally similar devices 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 I
40、EC 1020-5 with all details and requirements taken from Table 1 and Table 2 in the detail 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”) Sunlig
41、ht readability(insert the applicable test method or “not applicable”) Transmittancy (insert the cd/m2 limit for each colour and each style of display) Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:43:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS QC 96040
42、1:1992 BSI 10-19995 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 of major and minor defects shall be as follows (insert description of defects).
43、 2.5 Sampling procedure details Table 1 Test schedule for lot-by-lot inspection Subclause number and test designation (see note 1) D or ND Assessment level ILAQL GROUP A (non-destructive) 4.3.1 4.4.2 4.3.5 4.4.4 4.5.1 4.3.6 Visual examination Contact resistance (see note 3) Functional operation Insu
44、lation 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 Part 1 of IEC 1020, the supplementary requirements being specified in this part of IEC 1020. NOTE 2In th
45、is 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. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:43:08 GMT+00:00 2006, Uncont
46、rolled Copy, (c) BSI BS QC 960401:1992 6 BSI 10-1999 Table 2 Test schedule for periodic inspections Subclause number and test designation (see note 1) M, MA or WS Conditions of test (see note 1) Sample size and criterion of acceptability (see note 2) Performance requirements (see note 1) pntdc GROUP
47、 B (destructive) 31 4.13Solderability (see note 3)MA GROUP C (destructive) 12101 4.10 4.6.1 4.4.2 4.4.4 4.5.1 4.3.6 4.14 4.15 Electrical endurance (see note 3) Temperature rise Contact resistance (see note 3) Insulation resistance Voltage proof Operating characteristics Panel seal (see note 3) Enclo
48、sure seal (see note 3) M WS M WS M WS MA MA . . . cycles . . . V, . . . A, 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
49、 of IEC 1020-5 sunlight readability WS 121 GROUP E (destructive) 36 (Re-qualification according to Table 1 of IEC 1020-5) NOTE 1The subclause numbers of the test and performance requirements refer to Part 1 of IEC 1020, the supplementary requirements being specified in this part of IEC 1020. NOTE 2In the groups, all specimens shall be subjected to the required tests and all tests shall be performed in the sequence shown. NOTE 3The appropriate test method shall
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