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1、BRITISH STANDARD BS CECC 31301:1983 Incorporating Amendment No. 1 Specification for Harmonized system of quality assessment for electronic components Blank detail specification Fixed mica dielectric d.c. capacitors Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08
2、 17:02:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31301:1983 BSI 09-1999 ISBN 0 580 35522 5 Amendments issued since publication Amd. No.Date of issueComments 4549March 1984Indicated by a sideline in the margin Licensed Copy: London South Bank University, London South Bank University, Fri
3、Dec 08 17:02:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31301:1983 BSI 09-1999i Contents Page National forewordii Forewordii 1Dimensions1 2Specified method of mounting for vibration, bump and shock testing1 3Ratings and characteristics1 4Related documents2 5Marking2 6Ordering information2
4、 7Qualification approval and quality conformance inspection2 8Certified test records2 Table 11 Table 2 Values of capacitance and of rated voltage related to case sizes, temperature coefficients and capacitance tolerances1 Table 3 Other characteristics1 Table 4A Lot by lot inspection (Group A and B)3
5、 Table 4B Periodic tests4 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:02:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31301:1983 ii BSI 09-1999 National foreword This British Standard has been prepared under the direction of the Electronic Compon
6、ents Standards Committee. It is identical with CENELEC Electronic Components Committee CECC 31301: “Harmonized system of quality assessment for electronic components. Blank detail specification: Fixed mica dielectric d.c. capacitors.” This standard is a harmonized specification within the CECC Syste
7、m. Terminology and conventions The text of the CECC specification 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 especially drawn to the following. Th
8、e 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 British Standard which implements CECC 00100 is BS 9000-2:1983. “Specification for national implementation of the CECC Bas
9、ic Rules and Rules of Procedure”. Scope This standard lists the ratings, characteristics and inspection requirements which shall be included as mandatory requirements in accordance with BS CECC 31300. Detail specification layout In the event of conflict between the requirements of this specification
10、 and the provisions of BS 9000 the latter shall take precedence except that the front page layout will be in accordance with BS 9000 Circular Letter No 15 revised April 1981. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are res
11、ponsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. International StandardCorresponding British Standard CECC 30000:1975BS E9070:1975 Harmonized system of quality assessment for electronic components. Generic specifica
12、tion for fixed capacitors (Identical) CECC 31300:1982BS CECC 31300:1983 Harmonized system of quality assessment for electronic components. Sectional specification: Fixed mica dielectric d.c. capacitors (Identical) IEC 68-2-21:1975BS 2011-2.1U:1977 Basic environmental testing procedures. Test U. Robu
13、stness of terminations and integral mounting devices (Identical) IEC 410:1973BS 6001:1972 Sampling plans and procedures for inspection by attributes (Technically equivalent) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the CECC title page, pages ii t
14、o iv, pages 1 to 7 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. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:02:50 G
15、MT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:02:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31301:1983 ii BSI 09-1999 Foreword The CENELEC Electronic Components Committee (CECC) is composed of those membe
16、r Countries of the European Committee 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 assess
17、ment procedures for electronic components, and by the grant of an internationally recognized Mark, or Certificate, of Conformity. The components produced under the System are thereby accepted by all member countries without further testing. This blank detail specification has been formally approved
18、by the CECC and has been prepared for those member countries taking part in the System who wish to issue national harmonized specifications for FIXED MICA DIELECTRIC D. C. CAPACITORS. It should be read in conjunction with document CECC 00100: Basic Rules (1974). At the date of printing of this docum
19、ent the member countries of the CECC are Austria, Belgium, Denmark, Finland, France, Germany, Ireland, Italy, the Netherlands, Norway, Sweden, Switzerland and the United Kingdom. Preface This blank detail specification was prepared by CECC Working Group 3: “Capacitors”. It is one of a series of blan
20、k detail specifications all relating to the sectional specification CECC 31300. In accordance with the requirements of document CECC 00100 it is based, wherever possible, on the Publications of the International Electrotechnical Commission. As there are more than nine sectional specifications relate
21、d to CECC 30000: generic specification, Fixed Capacitors, the CECC Management Committee decided that these extra specifications should be numbered in the series 31100, 31200, 31300 etc . . There is no generic specification numbered 31000. The text of this blank detail specification was circulated to
22、 the CECC for voting in the documents listed below and was ratified by the CECC Management Committee for printing as a CECC Specification: Key for page iii The numbers between square brackets on page iii correspond to the following indications which should be given: DocumentVoting DateReport on the
23、Voting CECC(Secretariat)738May 1979CECC(Secretariat)798 Identification of the harmonized detail specification 1 The name of the National Standards Organization under whose authority the detail specification was drafted 2 The CECC Symbol and the number allotted by the CECC General Secretariat to the
24、completed detail specification 3 The number and issue number of the national generic and sectional specifications 4 The national number of the detail specification, date of issue and any further information required by the national system. Identification of the component 5 A short description of the
25、 type of component 6 Information on typical construction (see examples given on page iii) 7 Outline drawing with main dimensions which are of importance for interchangeability and/or reference to the national or international documents for outlines 8 Quick reference data (see examples given on page
26、iii) and level of quality assessment 9 Circuit diagram (if applicable). Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:02:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31301:1983 BSI 09-1999iii (NATIONAL STANDARDS ORGANIZATION)1 CECC 31301 XXX2 ELECT
27、RONIC COMPONENTS OF ASSESSED QUALITY IN ACCORDANCE WITH: (Number of national generic and sectional specification) (National number of detail specification, date of issue, National type number, if any) 34 DETAIL SPECIFICATION FOR FIXED MICA DIELECTRIC D.C. CAPACITORS5 TYPICAL CONSTRUCTION: cylindrica
28、l/rectangular dipped/molded/coated insulated/non insulated case axial/radial terminations intended/non intended for printed circuits 6 QUICK REFERENCE DATA: RATED CAPACITANCE RANGE CAPACITANCE TOLERANCE RATED VOLTAGE RANGE CLIMATIC CATEGORY TEMPRATURE COEFFICIENT OUTLINE DRAWING7 ASSESSMENT LEVEL8 C
29、ircuit diagram(if applicable)9 See the relevant Qualified Products List for the availability of components qualified to this detail specification Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:02:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank License
30、d Copy: London South Bank University, London South Bank University, Fri Dec 08 17:02:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31301:1983 BSI 09-19991 1 Dimensions Table 1 2 Specified method of mounting for vibration, bump and shock testing 3 Ratings and characteristics Table 2 Values of
31、 capacitance and of rated voltage related to case sizes, temperature coefficients and capacitance tolerances Table 3 Other characteristics Case size reference Dimensions (1) max.Lmax.Hmax.d tol.(2)(2) (1) Body dimensions should preferably be expressed as maxima but, where necessary, be nominal with
32、tolerance. (2) Other important dimensions may be included as additional information. Grade Temperature coefficient(See Table 2) Capacitance range(See Table 2) Capacitance tolerance(s) in percent(See Table 2) Rated voltage(See Table 2) Tangent of loss angle(See Table of CECC 31300) Insulation resista
33、nce(See Table of CECC 31300) Climatic category NOTEInformation on the above characteristics may be given in tabular form, if necessary. Rated capacitanceRated voltage CR min.CR max. (V) (V) Case size Temperature coefficient Tolerance on CR (%) Case size Temperature coefficient Tolerance on CR (%) mi
34、n.max.min.max. This table is to be used for defining characteristics which are additional to or tighter than those given in the sectional specification Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:02:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31
35、301:1983 2 BSI 09-1999 4 Related documents 5 Marking The following details selected from those listed in 1.4 of CECC 31300 shall be given on the capacitor. 6 Ordering information Detail specification number Rated capacitance Tolerance on rated capacitance Rated voltage Together with other informatio
36、n to identify a specific size, constructional details, etc. as necessary. An example of ordering information shall be given. 7 Qualification approval and quality conformance inspection For qualification approval tests and quality conformance inspection the test schedule, severities and requirements
37、given in the sectional specification, supplemented by the relevant information given in Table 4A and Table 4B, apply NOTETests and requirements additional to or more severe than those given in the sectional specification, as defined in Table 3 shall also be specified in this table. 8 Certified test
38、records As required in accordance with CECC 31300. Generic specificationCECC 30000 Sectional specificationCECC 31300 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:02:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31301:1983 BSI 09-19993 Table 4A Lot
39、by lot inspection (Group A and B) Clause number and test (1) D or ND (3) Condition of testIL (2) AQL % (2) Performance requirements (1) Sub-Group A1NDS42,5 4.2Visual examination, Marking Dimensions No visible damage Marking legible See Table 1 Sub-Group A2NDII1,0 4.3 4.4 4.5 4.6 Voltage proof Capaci
40、tance Tangent of loss angle Insulation resistance Test point 1a) 2 UR f = 100 kHz 20 % or 1 MHz 20 % or CR1 000 pF 1 MHz for referee f = 1 kHz 20 % for CR 1 000 pF Measuring conditions as for capacitance Test point 1a) Measuring voltage see Table in 4.6 No breakdown no flashover Measured values with
41、in tolerance limits See Table in 4.5 See Table in 4.6 Sub-Group B1NDS32,5 4.12.2 SolderabilitySolder bath: Immersion to withinmm from body heat shield Solder bath: good tinning Solder globule Sub-Group B2NDS32,5 4.7 4.8 Temperature coefficient and cyclic drift Inductance (if required) Preliminary dr
42、ying for 16 h to 24 h For alternative method, see Appendix A NOTESpecimens having passed the Group B non-destructive tests shall still satisfy the tests of Group A. (1), (2) and (3): See page 7 2 +0,5 0 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:02:50 GM
43、T+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31301:1983 4 BSI 09-1999 Table 4B Periodic tests Clause number and test (1) D or ND (3) Condition of testP (3) n (3) c (3) Performance requirements (1) Sub-Group C1aD691 4.11.1 4.11.2 4.11.3 4.11.4 Initial measurement U: Robustness of terminations Ual
44、: Tensile Ub: Bending (not applicable to components with radial terminations for printed circuit application) Uc: Torsion (if applicable) Tb: Resistance to soldering heat Final measurements Capacitance, tan $ Forces as in Table I of IEC 68-2-21:1975 Method 2 as in 3.4.2.1 of IEC 68-2-21:1975 Severit
45、y 2 as in 4.4.2 of IEC 68-2-21:1975 Method 1A for capacitors for p.c.b. mounting Method 1B for other application. Immersion up to 6 0,5 mm from the body Visual examination Capacitance tan $ No visible damage cracking of coating on wire permitted No visible damage Marking legible Capacitance change k
46、0,5 % or 5 pF whichever is greater See Table in 4.5 Sub-Group C1bD6181 4.12.1 4.12.3 4.12.4 4.12.5 Initial measurement Na: Rapid change of temperature Fc: Vibration Ea: Shock or Eb: Bump Capacitance, tan $ 5 cycles, Duration of exposure: 30 min Method B4, 0,75 mm or 10 g Frequency ranges 10 to55 Hz
47、or 10 to500 Hz or 10 to 2 000 Hz Duration of conditioning: 6 h Mounting method Severity If prescribed by detail specification electrical measurement during last 30 min of conditioning Intermittent contacts not greater than 0,5 ms No visible damage (1) and (3): See page 7 Licensed Copy: London South
48、Bank University, London South Bank University, Fri Dec 08 17:02:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 31301:1983 BSI 09-19995 Table 4B Periodic tests Clause number and test (1) D or ND (3) Condition of testP (3) n (3) c (3) Performance requirements (1) 4.12.6Final measurements Visual
49、 examination Capacitance tan $ No visible damage, marking legible See Table in 4.12.7 u value specified in 4.5 or u 1,2 times initial value in 4.12.1, whichever is greater Group C1D6272 4.13 4.13.1 4.13.2 4.13.3 4.13.4 4.13.5 Climatic sequence Initial measurements Ba: Dry heat Db: Damp heat, cyclic, 1st cycle (not applicable to category -/-/04 Aa: Cold M: Low air pressure (Not applicable to category -/-/04 Not required Duration: 16 h Duration last hour insulation resistance to be measured between ter