BS-CECC-41300-1979.pdf
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1、BRITISH STANDARD BS CECC 41300:1979 Harmonized system of quality assessment for electronic components Sectional specification: Low power single-turn rotary potentiometers Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:01:25 GMT+00:00 2006, Uncontrolled Copy,
2、 (c) BSI BS CECC 41300:1979 This British Standard, having been prepared under the direction of the Electronic Components Standards Committee, was published under the authority of the Executive Board and comes into effect on 31 October 1979 BSI 05-2000 The following BSI references relate to the work
3、on this standard: Committee reference ECL/4 Draft for comment 73/28111 DC ISBN 0 580 10979 8 Cooperating organizations The Electronic Components Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following scientific and industrial org
4、anizations: British Electrical and Allied Manufacturers Association Electricity Supply Industry in England and Wales* Electronic Components Industry Federation* Electronic Engineering Association* Institution of Electronic and Radio Engineers National Supervising Inspectorate* Post Office* Society o
5、f British Aerospace Companies* Telecommunication Engineering and Manufacturing Association (TEMA) The organizations marked with an asterisk in the above list, together with the following, were directly represented on the committee entrusted with the preparation of this British Standard: British Broa
6、dcasting Corporation Electrical Research Association Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:01:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 41300:1979 BSI 05-2000i Contents Pa
7、ge Cooperating organizationsInside front cover National forewordii Forewordiv Text of CECC 413001 Publications referred toInside back cover Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:01:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 41300:1979 ii
8、BSI 05-2000 National foreword This British Standard has been prepared under the direction of the Electronic Components Standards Committee. It is identical with CENELEC Electronic Components Committee CECC 41300 “Harmonized system of quality assessment for electronic components. Sectional specificat
9、ion: Low power single turn rotary potentiometers”. This standard is a harmonized specification within the CECC system. Terminology and conventions. The text of the CECC specification has been approved as suitable for publication, without deviation, as a British Standard. Some terminology and certain
10、 conventions are not identical with those used in British Standards. Attention is especially drawn to the following. The comma has been used throughout as a decimal marker. In British Standards it is current practice to use a full point on the baseline as the decimal marker. Cross-references. The Br
11、itish Standard harmonized with CECC 00100 is BS E9000 “General requirements for electronic components of assessed quality harmonized with the CENELEC Electronic Components Committee System” Part 1 “Basic rules”. The following International Standards are referred to in the text and for each there is
12、a corresponding British Standard; these are listed below: At present there is no corresponding British Standard for IEC 393-1. IEC 393-1 is referred to in the text for information purposes only. International StandardCorresponding British Standard CECC 41000:1976BS CECC 41000:1977 Harmonized system
13、of quality assessment for electronic components: Generic specification for potentiometers (Identical) IEC 68-1:1968BS 2011 Basic environmental testing procedures Part 1.1:1977 General (Identical) IEC 68-2-6:1970BS 2011 Basic environmental testing procedures Part 2.1Fc:1977 Test Fc: Vibration (sinuso
14、idal) (Identical) IEC 68-2-13:1966BS 2011 Basic environmental testing procedures Part 2.1M:1977 Test M: Low air pressure (Identical) IEC 68-2-14:1974BS 2011 Basic environmental testing procedures Part 2.1N:1977 Test N: Change of temperature (Identical) IEC 68-2-20:1968BS 2011 Basic environmental tes
15、ting procedures Part 2.1Ta:1977 Test Ta: Solderability (Identical) IEC 68-20A:1970BS 2011 Basic environmental testing procedures Part 2.1Tb:1977 Test Tb: Soldering resistance to soldering heat, Method 1 (Identical) IEC 68-2-27:1972BS 2011 Basic environmental testing procedures Part 2.1Ea:1977 Test E
16、a: Shock (Identical) IEC 68-2-29:1968BS 2011 Basic environmental testing procedures Part 2.1Eb:1977 Test Eb: Bump (Identical) Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:01:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 41300:1979 BSI 05-2000iii A
17、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. Summary of pages This document comprises a
18、front cover, an inside front cover, pages i to iv, the CECC title page, pages ii to iv, pages 1 to 20, an inside back cover 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 fron
19、t cover. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:01:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:01:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licens
20、ed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:01:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 41300:1979 ii BSI 05-2000 Contents Page Forewordiv Section 1. Scope1 Section 2. Preferred characteristics, ratings and severities for environmental tests 2.1Cha
21、racteristics1 2.1.1Climatic severities1 2.1.2Temperature characteristics and temperature coefficients of resistance1 2.1.3Limits for change in resistance, or output ratio4 2.1.4Limits for insulation resistance4 2.1.5Limits for resistance law4 2.1.6Limits for starting torque5 2.1.7Limits for switch t
22、orque5 2.2Ratings5 2.2.1Rated resistance5 2.2.2Tolerances on rated resistance5 2.2.3Rated dissipation5 2.2.4Limiting element voltage5 2.2.5Isolation voltage5 2.2.6Switch rating6 2.3Severities for environmental tests6 2.3.1Drying6 2.3.2Vibration6 2.3.3Bump6 2.3.4Shock6 2.3.5Low air pressure6 2.3.6Cha
23、nge of temperature7 2.3.7Soldering7 2.4Derating curve7 2.5Information to be given in a detail specification7 2.5.1Style7 2.5.2Rated dissipation8 2.5.3Limiting element voltage8 2.5.4Isolation voltage8 2.5.5Resistance law8 2.5.6Dimensions8 2.5.7Resistance range8 2.5.8Tolerances on rated resistance9 2.
24、5.9Temperature characteristics of resistance9 2.5.10Climatic category9 2.5.11Vibration severity9 2.5.12Bump severity9 2.5.13Shock severity9 2.5.14Low air pressure severity9 2.5.15Soldering9 2.5.16Limits of resistance change after 1 000 h, electrical endurance test9 2.5.17Starting torque9 2.5.18Switc
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