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1、BRITISH STANDARD BS CECC 30800:1991 Harmonized system of quality assessment for electronic components Sectional specification: Tantalum surface mounting capacitors Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:06:36 GMT+00:00 2006, Uncontrolled Copy, (c) BS
2、I BS CECC 30800:1991 This British Standard, having been prepared under the direction of the Electronic Components Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 20 December 1991 BSI 09-1999 The following BSI references relate to the work
3、 on this standard: Committee reference ECL/4 Special announcement in BSI News, December 1991 ISBN 0 580 20327 1 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Electronic Components Standards Policy Committee (ECL/-) to Technical Committ
4、ee ECL/4, upon which the following bodies were represented: British Telecommunications plc EEA (the Association of Electronics, Telecommunications and Business Equipment Industries) Electronic Components Industry Federation Ministry of Defence National Supervising Inspectorate Society of British Aer
5、ospace Companies Limited Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:06:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 30800:1991 BSI 09-1999i Contents Page Committees responsibleInside front
6、 cover National forewordii Forewordiii Text of CECC 308001 Publication(s) referred toInside back cover Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:06:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 30800:1991 ii BSI 09-1999 National foreword This Br
7、itish Standard has been prepared under the direction of the Electronic Components Standards Policy Committee. It is identical with CECC 30800:1990 “Sectional specification: Tantalum surface mounting capacitors” 2nd edition, published by the European Committee for Electrotechnical Standardization (CE
8、NELEC) Electronic Components Committee (CECC). It is a harmonized specification in the CECC System for Electronic Components of Assessed Quality. It was prepared by CECC Working Group 3 “Capacitors”, and the United Kingdom participation in the drafting was provided by Technical Committee ECL/4 “Capa
9、citors and resistors for electronic equipment”. The Technical Committee has reviewed the provisions of CECC 00200 to which reference is made in the text and has decided that they are acceptable for use in conjunction with this standard. A British Standard does not purport to include all the necessar
10、y 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 International Standard Corresponding British Standard ISO 3:1973BS 2045:1965 Preferred
11、numbers (Technically equivalent) IEC 62:1974BS 1852:1975 Specification for marking codes for resistors and capacitors (Identical) IEC 63:1963BS 2488:1966 Schedule of preferred numbers for the resistance of resistors and the capacitance of capacitors for telecommunication equipment (Technically equiv
12、alent) BS 2011 Environmental testing IEC 68-1:1988Part 1.1:1989 General and guidance (Identical) IEC 62-2-20:1979Part 2.1T:1981 Test T. Soldering (Identical) IEC 68-2-45:1980Part 2.1XA:1981 Test XA and guidance. Immersion in cleaning solvents (Identical) IEC 410:1973BS 6001 Sampling procedures for i
13、nspection by attributes Part 1:1991 Specification for sampling plans indexed by acceptable quality level (AQL) for lot-by-lot inspection (Technically equivalent) CECC 30000:1983BS CECC 30000:1984 Harmonized system of quality assessment for electronic components: generic specification: fixed capacito
14、rs (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the CECC title page, pages ii to iv, pages 1 to 26, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This
15、will be indicated in the amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:06:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:06:36
16、 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 30800:1991 ii BSI 09-1999 Contents Page Forewordiii Section 1. General 1.1Scope1 1.2Related documents1 1.3Information to be given in a detail specification1 1.4Terminology2 1.5Marking2 Section 2. Preferred ratings and characteristics 2.1Preferred c
17、limatic categories3 2.2Preferred values of ratings3 Section 3. Quality assessment procedures 3.1Primary stage of manufacture4 3.2Structurally similar components4 3.3Certified test records4 3.4Qualification approval4 3.5Quality conformance inspection5 Section 4. Test and Measurement procedures 4.1Pre
18、liminary drying8 4.2Measuring conditions8 4.3Mounting8 4.4Visual examination and check of dimensions10 4.5Electrical tests10 4.6Resistance to soldering heat11 4.7Solderability12 4.8Shear test12 4.9Substrate bending test12 4.10 Rapid change of temperature14 4.11 Climatic sequence15 4.12 Damp heat, st
19、eady state15 4.13 Characteristics at high and low temperature15 4.14 Surge voltage15 4.15 Endurance16 4.16 Reverse voltage16 4.17 Component solvent resistance17 4.18 Solvent resistance of the marking17 Annex A Test schedule for Qualification Approval18 Figure 1 Example of a suitable substrate for te
20、sts9 Figure 2 Example of a suitable substrate for tests9 Figure 313 Figure 413 Figure 5 Bending jig14 Table 1 Sampling plan together with numbers of permissible defectives for qualification approval tests Assessment level E6 Table 2 Lot-by-lot tests Assessment level E7 Table 3 Periodic tests Assessm
21、ent level E7 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:06:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 30800:1991 BSI 09-1999iii Foreword The CENELEC Electronic Components Committee (CECC) is composed of those member countries of the European C
22、ommittee for Electrotechnical Standardization (CENELEC) who wish to take part in a harmonized System for electronic components of assessed quality. The object of the System is to facilitate international trade by the harmonization of the specifications and quality assessment procedures for electroni
23、c components, and by the grant of an internationally recognized Mark, or Certificate, of Conformity. The components produced under the System are thereby acceptable in all member countries without further testing. This specification has been formally approved by the CECC, and has been prepared for t
24、hose countries taking part in the System who whish to issue national harmonized specifications for Tantalum surface mounting capacitors. It should 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
25、are Austria, Belgium, Denmark, Finland, France, Germany, Ireland, Italy, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom, and copies of it can be obtained from the addresses shown on the blue fly sheet. Preface This specification was prepared by CECC WG 3: “Capac
26、itors”. It is a revised version of CECC 30800 (1977). It is based, wherever possible, on the Publications of the International Electrotechnical Commission, and in particular on IEC 384-3: Sectional specification: Fixed tantalum chip capacitors (Second edition) 1989. The text of this specification wa
27、s circulated to the CECC for voting in the document indicated below and was ratified by the President of the CECC for printing as a CECC Specification. Effective Date: This issue 2 of CECC 30800 shall become effective for all new qualification approvals from 1 October 1990 Issue 1 shall remain valid
28、 for existing qualification approvals until further notice. DokumentDate of votingReport on the Voting CECC (Secretariat) 2276 September 1988CECC (Secretariat) 2394 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:06:36 GMT+00:00 2006, Uncontrolled Copy, (c) B
29、SI iv blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:06:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 30800:1991 BSI 09-19991 Section 1. General 1.1 Scope This specification applies to tantalum solid electrolyte surface mounting capacitors. The
30、se capacitors are primarily intended to be mounted directly onto substrates for hybrid circuits or onto printed boards. This specification prescribes preferred ratings and characteristics and selects from CECC 30000 the appropriate quality assessment procedures, tests and measuring methods and gives
31、 general performance requirements for this type of capacitor. Test severities and requirements prescribed in detail specifications referring to this sectional specification shall be of equal or higher performance level, because lower performance levels are not permitted. 1.2 Related documents NOTETh
32、e above references apply to the current editions except for IEC 68: the Generic Specification specifies in each test section the relevant edition to be used. 1.3 Information to be given in a detail specification Detail specifications shall be derived from the relevant blank detail specification. Det
33、ail specifications shall not specify requirements inferior to those of the generic, sectional or blank detail specification. When more severe requirements are included, they shall be listed in 1.9 of the detail specification and indicated in the test schedules, for example by an asterisk. NOTEThe in
34、formation given in 1.3.1 may for convenience, 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. 1.3.1 Outline drawing and d
35、imensions There shall be an illustration of the 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 are to be stat
36、ed in mm. Normally the numerical values shall be given for the length, the width and height of the body. When necessary, for example when a number of case sizes are covered by a detail specification, the dimensions and their associated tolerances shall be placed in a table below the drawing. When th
37、e configuration is other than described above, the detail specification shall state such dimensional information as will adequately describe the capacitor. 1.3.2 Mounting The detail specification shall give guidance on methods of mounting for normal use. Mounting for test and measurement purposes (i
38、f required) shall be in accordance with 4.3. 1.3.3 Ratings and characteristics The ratings and characteristics shall be in accordance with the relevant clauses of this specification, together with the following: 1) Rated capacitance range See 2.2.1. NOTEWhen products approved to the detail specifica
39、tion have different ranges, the following statement should be added: “The range of capacitance values available in each voltage range is given in the Qualified Products List (QPL), CECC 00200.” Two styles are considered: Style I:protected capacitors Style II: unprotected capacitors. ISO 3(1973)Prefe
40、rred Numbers Series of Preferred Numbers IEC 62(1974)Marking Codes for Resistors and Capacitors IEC 63 Amendment No. 1 Amendment No. 2 (1963) (1967) (1977) Preferred Number Series for Resistors and Capacitors IEC 68Basic Environmental Testing Procedures CECC 30000(1983)Generic Specification: Issue 3
41、, Amendments 1 to 6Fixed Capacitors IEC 410(1973)Sampling Plans and Procedures for Inspection by Attributes Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:06:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 30800:1991 2 BSI 09-1999 2) Particular charact
42、eristics Additional characteristics may be listed, when they are considered necessary to specify adequately the component for design and application purposes. 1.3.4 Marking The detail specification shall specify the content of the marking on the capacitor and on the package. Deviations from 1.5 of t
43、his sectional specification shall be specifically stated. 1.4 Terminology In addition to the applicable terms and definitions of CECC 30000 the following definitions apply: 1.4.1 surface mounting capacitor a capacitor whose small dimensions and nature or shape of terminations make it suitable for su
44、rface mounting in hybrid circuits and on printed boards 1.4.2 rated voltage (UR) the rated voltage is the maximum d.c. voltage which may be applied continuously to a capacitor at the rated temperature NOTE 1The sum of the d.c. voltage and the peak a.c. voltage applied to the capacitor shall not exce
45、ed the rated voltage. NOTE 2For short periods, however, the rated voltage may be exceeded (see 2.2.5 and 4.14). 1.5 Marking See 2.4 of CECC 30000 with the following details: 1.5.1 The information given in the marking is normally selected from the following list; the relative importance of each item
46、is indicated by its position in the list: 1) Polarity of the terminations (unless identified by the construction) 2) Rated capacitance 3) Rated voltage (d.c. voltage may be indicated by the symbol ) 4) Tolerance on rated capacitance 5) Style (in accordance with 1.1) 6) Year and month (or week) of ma
47、nufacture 7) Manufacturers name or trade mark 8) Climatic category 9) Manufacturers type designation 10) Reference to the detail specification. 1.5.2 Surface Mounting capacitors are generally not marked on the body. If some marking can be applied, they shall be clearly marked with as many as possibl
48、e of the above items as is considered useful. Designation of polarity is a mandatory item. Any duplication of information in the marking on the capacitor should be avoided. 1.5.3 Any marking shall be legible and not easily smeared or removed by rubbing with the finger. 1.5.4 The package containing t
49、he capacitor(s) shall be marked with all the information listed in 1.5.1, except polarity, unless this is applicable to the method of packaging. 1.5.5 Any additional marking shall be so applied that no confusion can arise. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:06:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 30800:1991 BSI 09-19993 Section 2.Preferred ratings and characteristics 2.1 Preferred climatic categories The capacitors covered by this specification are classified into climatic categories ac