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1、BRITISH STANDARD BS QC 301200:1983 IEC 384-16: 1982 QC 301200: 1982 Incorporating Amendment No. 1Harmonized system of quality assessment for electronic components Fixed capacitors for use in electronic equipment Sectional specification: Fixed metallized polypropylene film dielectric d.c. capacitors
2、IEC title. Fixed capacitors for use in electronic equipment Part 16: Sectional specification: Fixed metallized polypropylene film dielectric d.c. capacitors UDC 621.319.4:621.38 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:17:35 GMT+00:00 2006, Uncontrolle
3、d Copy, (c) BSI BS QC 301200:1983 This British Standard, having been prepared under the direction of the Electronic Components Standards Committee, was published under the authority of the Board of BSI and comes into effect on 31 October 1983 BSI 04-2000 The following BSI references relate to the wo
4、rk on this standard: Committee reference ECL/4 Draft for comment 79/27938 DC ISBN 0 580 13410 5 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Electronic Components Standards Committee (ECL/-) to Technical Committee ECL/4 upon which the
5、 following bodies were represented: British Telecommunications Electronic Components Industry Federation Electronic Engineering Association Ministry of Defence National Supervising Inspectorate Society of British Aerospace Companies Limited Telecommunication Engineering and Manufacturing Association
6、 (TEMA) Amendments issued since publication Amd. No.Date of issueComments 5952July 1992Indicated by a sideline in the margin Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 01:17:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS QC 301200:1983 BSI 04-2000i Conten
7、ts Page Committees responsibleInside front cover National forewordii Section 1. General 1.1Scope1 1.2Object1 1.3Related documents1 1.4Information to be given in a detail specification2 1.5Terminology3 1.6Marking3 Section 2. Preferred ratings and characteristics 2.1Preferred characteristics4 2.2Prefe
8、rred values of ratings4 Section 3. Quality assessment procedures 3.1Primary Stage of Manufacture5 3.2Structurally Similar Components5 3.3Certified Records of Released Lots5 3.4Qualification Approval5 3.5Quality Conformance Inspection11 Section 4. Test and measurement procedures 4.1Visual examination
9、 and check of dimensions12 4.2Electrical tests12 4.3Robustness of terminations15 4.4Resistance to soldering heat15 4.5Solderability15 4.6Rapid change of temperature15 4.7Vibration16 4.8Bump16 4.9Shock16 4.10 Climatic sequence17 4.11 Damp heat, steady state17 4.12 Endurance18 4.13 Charge and discharg
10、e18 Table I Sampling plan together with numbers of permissible defectives for qualification approval tests6 Table II Test schedule for Qualification Approval7 Table III A12 Table III B12 Publications referred toInside back cover Licensed Copy: London South Bank University, London South Bank Universi
11、ty, Sat Dec 09 01:17:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS QC 301200:1983 ii BSI 04-2000 National foreword This British Standard has been prepared under the direction of the Electronic Components Standards Committee. It is identical with IEC Publication 384-16 QC 301200 “Fixed capacitors
12、for use in electronic equipment. Part 16: Sectional specification: Fixed metallized polypropylene film dielectric d.c. capacitors”, published in 1982 by the International Electrotechnical Commission (IEC). This standard is a harmonized specification within the IECQ system of quality assessment for e
13、lectronic components. Terminology and conventions. The text of the International Standard has been approved as suitable for publication as a British Standard without deviation. Some terminology and certain conventions are not identical with those used in British Standards; attention is drawn especia
14、lly to the following. For the purposes of this British Standard 1.1 and 1.2 should be regarded as constituting the scope of the standard. Cross references. The British Standard which implements QC 001001 and QC 001002 is BS 9000 “General requirements for a system for electronic components of assesse
15、d quality” Part 3:1991 “Specification for the national implementation of the IECQ system”. International StandardCorresponding British Standard ISO 3:1973BS 2045:1965 Preferred numbers (Technically equivalent) IEC 62:1974BS 1852:1975 Marking codes for resistors and capacitors (Identical) IEC 63:1963
16、BS 2488:1966 Schedule of preferred numbers for the resistance of resistors and the capacitance of capacitors for telecommunication equipment (Technically equivalent) IEC 68BS 2011 Basic environmental testing procedures IEC 68-1:1982Part 1.1:1983 General and guidance (Identical) IEC 384-1:1982BS QC 3
17、00000:1983 Fixed capacitors for use in electronic equipment (QC 300000:1982)Generic specification (Identical) IEC 384-14:1981BS 6201 Fixed capacitors for use in electronic equipment Part 3:1982 Specification for fixed capacitors for radio interference suppression. Selection of methods of test and ge
18、neral requirements (Identical) IEC 410:1973BS 6001 Sampling procedures and inspection by attributes Part 1:1991 Specification for sampling plans indexed by acceptable quality level (AQL) for lot-by-lot inspection Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 0
19、1:17:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS QC 301200:1983 BSI 04-2000iii There is no corresponding British Standard for IEC 65, but as it is referred to for information only, the validity of this British Standard is not affected. A British Standard related to IEC 65 is BS 415:1979 “Specif
20、ication for safety requirements for mains-operated electronic and related apparatus for household and similar general use”. 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
21、with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 18, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had
22、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 01:17:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: London South Bank University, London Sou
23、th Bank University, Sat Dec 09 01:17:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS QC 301200:1983 BSI 04-20001 Section 1. General 1.1 Scope This standard applies to fixed capacitors with metallized electrodes and polypropylene dielectric for use in electronic equipment. These capacitors may have
24、“self-healing properties” depending on conditions of use. They are mainly intended for use with direct voltage. Capacitors for alternating voltage and pulse applications will be covered by supplements to this document or a separate document. The maximum power to be applied is 500 var at 50 Hz and th
25、e maximum peak voltage is 2 500 V. Two performance grades of capacitors are covered, Grade 1 for long-life application and Grade 2 for general application. Capacitors for radio interference suppression are not included, but are covered by IEC Publication 384-14: Fixed Capacitors for Use in Electroni
26、c Equipment. Part 14: Sectional Specification: Fixed Capacitors for Radio Interference Suppression. Selection of Methods of Test and General Requirements. Capacitors for electrical shock hazard protection (covered by IEC Publication 65: Safety Requirements for Mains Operated Electronic and Related A
27、pparatus for Household and Similar General Use) and fluorescent lamp and motor capacitors (covered by IEC Technical Committee No. 33: Power Capacitors, and IEC Technical Committee No. 34: Lamps and Related Equipment, specifications) are also excluded. 1.2 Object The object of this standard is to pre
28、scribe preferred ratings and characteristics and to select from IEC Publication 384-1:1982, the appropriate quality assessment procedures, tests and measuring methods and to give general performance requirements for this type of capacitor. Test severities and requirements prescribed in detail specif
29、ications referring to this sectional specification shall be of equal or higher performance level, because lower performance levels are not permitted. 1.3 Related documents IEC publications: ISO publication: NOTEThe above references apply to the current editions except for IEC Publication 68, for whi
30、ch the referenced edition in the applicable test clauses of the generic specification shall be used. Publication 62:1974:Marking Codes for Resistors and Capacitors. Publication 63:1963:Preferred Number Series for Resistors and Capacitors. Amendment No. 1 (1967). Amendment No. 2 (1977). Publication 6
31、8:Basic Environmental Testing Procedures. Publication 384-1:1982:Fixed Capacitors for Use in Electronic Equipment. Part 1: Generic Specification. Publication 410:1973:Sampling Plans and Procedures for Inspection by Attributes. Publication QC 001001:1981:Basic Rules of the IEC Quality Assessment Syst
32、em for Electronic Components (IECQ). Publication QC 001002:1981:Rules of Procedure of the IEC Quality Assessment System for Electronic Components (IECQ). ISO Standard 3:1973:Preferred Numbers Series of Preferred Numbers. Licensed Copy: London South Bank University, London South Bank University, Sat
33、Dec 09 01:17:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS QC 301200:1983 2 BSI 04-2000 1.4 Information to be given in a detail specification Detail specifications shall be derived from the relevant blank detail specification. Detail specifications shall not specify requirements inferior to those
34、 of the generic, sectional or blank detail specification. When more severe requirements are included, they shall be listed in Sub-clause 1.9 of the detail specification and indicated in the test schedules, for example by an asterisk. NOTEThe information given in Sub-clause 1.4.1 may for convenience,
35、 be presented in tabular form. The following information shall be given in each detail specification and the values quoted shall preferably be selected from those given in the appropriate clause of this sectional specification. 1.4.1 Outline drawing and dimensions There shall be an illustration of t
36、he capacitor as an aid to easy recognition and for comparison of the capacitor with others. Dimensions and their associated tolerances, which affect interchangeability and mounting, shall be given in the detail specification. All dimensions shall preferably be stated in millimetres, however, when th
37、e original dimensions are given in inches, the converted metric dimensions in millimetres shall be added. Normally the numerical values shall be given for the length of the body, the width and height of the body and the wire spacing, or for cylindrical types, the body diameter, and the length and di
38、ameter of the terminations. When necessary, for example when a number of items (capacitance values/voltage ranges) are covered by a detail specification, the dimensions and their associated tolerances shall be placed in a table below the drawing. When the configuration is other than described above,
39、 the detail specification shall state such dimensional information as will adequately describe the capacitor. When the capacitor is not designed for use on printed boards, this shall be clearly stated in the detail specification. 1.4.2 Mounting The detail specification shall specify the method of mo
40、unting to be applied for normal use and for the application of the vibration and the bump or shock tests. The capacitors shall be mounted by their normal means. The design of the capacitor may be such that special mounting fixtures are required in its use. In this case, the detail specification shal
41、l describe the mounting fixtures and they shall be used in the application of the vibration and bump or shock tests. 1.4.3 Ratings and characteristics The ratings and characteristics shall be in accordance with the relevant clauses of this specification, together with the following: 1.4.3.1 Rated ca
42、pacitance range See Sub-clause 2.2.1. NOTEWhen products approved to the detail specification may have different ranges, the following statement should be added: “The range of values available in each voltage range is given in the qualified products list.” 1.4.3.2 Particular characteristics Additiona
43、l characteristics may be listed, when they are considered necessary to specify adequately the component for design and application purposes. 1.4.3.3 Soldering The detail specification shall prescribe the test methods, severities and requirements applicable for the solderability and the resistance to
44、 soldering heat test. 1.4.4 Marking The detail specification shall specify the content of the marking on the capacitor and on the package. Deviations from Sub-clause 1.6 of this sectional specification shall be specifically stated. Licensed Copy: London South Bank University, London South Bank Unive
45、rsity, Sat Dec 09 01:17:35 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS QC 301200:1983 BSI 04-20003 1.5 Terminology In addition to the applicable terms and definitions of IEC Publication 384-1 the following definitions apply: 1.5.1 Performance grades 1.5.1.1 performance grade 1 capacitors (long-lif
46、e) capacitors intended for long-life applications with stringent requirements for the electrical parameters 1.5.1.2 performance grade 2 capacitors (general purpose) capacitors for general application where the stringent requirements of performance grade 1 are not necessary 1.5.2 stability grade it i
47、s defined by the capacitance drift after climatic and mechanical tests and after endurance tests. The performance grade and the stability grade shall be noted in the detail specification 1.5.3 performance grade and stability grade combinations the table below shows the combinations of the performanc
48、e grade and the stability grade (for preferred values) The three combinations of performance grades and stability grades concern capacitance stability and tan values. Distinction in performance of the three combinations is shown in Table II, page 7. 1.5.4 rated voltage the rated voltage is the maxim
49、um d.c. voltage which may be applied continuously to a capacitor at the rated temperature NOTEThe sum of the d.c. voltage and the peak a.c. voltage applied to the capacitor shall not exceed the rated voltage. The value of the peak a.c. voltage allowed at different frequencies is under consideration. 1.6 Marking Sub-clause 2.4 of IEC Publication 384-1, with the following details: 1.6.1 The information given in the marking is normally selected from the following list; the relative importance of each item is indicated by its position in the list: a) rated capacitan