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1、BRITISH STANDARD BS EN 125401:1997 Incorporating Amendment No. 1 to BS CECC 25401:1984 (renumbers BS as BS EN 125401:1997) Harmonized system of quality assessment for electronic components Blank detail specification: Adjusters used with magnetic oxide (ferrite) cores for use in inductors and tuned t
2、ransformers The European Standard EN 125401:1991 has the status of a British Standard ICS 29.100.10 BS EN 125401:1997 BSI 03-2000 ISBN 0 580 34751 6 National foreword This British Standard has been prepared by Technical Committee EPL/51 and is the English language version of EN 125401:1991 Harmonize
3、d system of quality assessment for electronic components Blank detail specification: Adjusters used with magnetic oxide (ferrite) cores for use in inductors and tuned transformers, published by the European Committee for Electrotechnical Standardization (CENELEC) Electronic Components Committee (CEC
4、C). Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or using the “Find” facility of the BSI Standards Elec
5、tronic Catalogue. 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. Summary of pages This d
6、ocument comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 6 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. Amendments
7、issued since publication Amd. No.DateComments BS EN 125401:1997 BSI 03-2000i Contents Page National forewordInside front cover Foreword2 Text of EN 1254013 ii blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 125401 December 1991 UDC: Descriptors: Quality, electronic components, adjusters E
8、nglish version Blank Detail Specification: Adjusters used with magnetic oxide (ferrite) cores for use in inductors and tuned transformers Spcification Particulire Cadre: Btonnets de rglage employs avec des noyaux en oxydes magntiques (ferrites) destins aux bobines dinductance et transformateurs acco
9、rds Vordruck fr Bauartspezifikation: Abgleiche fr Kerne aus magnetischen Oxiden (Ferriten) in Spulen und abgestimmten Ubertragern This European Standard was approved by the CENELEC Electronic Components Committee (CECC) on 20 November 1991. The text of this standard consists of the text of CECC 2540
10、1 Issue 1 1982 of the corresponding CECC Specification. CENELEC members are bound to comply with CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
11、 concerning such national standards may be obtained on application to the General Secretariat of the CECC or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CE
12、NELEC member into its own language and notified to the CECC General Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands,
13、 Norway, Portugal, Spain, Sweden, Switzerland, and United Kingdom. The membership of the CECC is identical, with the exception of the national electrotechnical committees of Greece, Iceland and Luxembourg. CECC European Committee for Electrotechnical Standardization Comit Europen de Normalisation El
14、ectrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1991 Copyright reserved to CENELEC members Ref. No. EN 125401:1991 E EN 125401:1991 BSI 03-2000 2 Foreword The CENELEC Electronic Components Committee (CECC) is composed of those
15、member 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 specifications and quality asses
16、sment 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 specification has been formally approved by the CECC,
17、 and has been prepared for those countries taking part in the System who wish to issue national harmonized specifications for ADJUSTERS USED WITH MAGNETIC OXIDE CORES FOR USE IN INDUCTORS AND TUNED TRANSFORMERS. It should be read in conjunction with document CECC 00100: Basic Rules (1974). At the da
18、te of printing of this document, 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 (BDS) was prepared by CECC Working Group 12: “Magne
19、tic Components”. It is related to the generic specification printed as CECC 25000 and sectional specification printed as CECC 25400. In accordance with the requirements of document CECC 00100, it is based, wherever possible, on the Recommendations of the International Electrotechnical Commission and
20、 in particular on IEC 367: Cores for inductors and transformers for telecommunications. The text of this BDS was 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: Contents Page Foreword2 1Identificati
21、on of the DS3 2Identification of the adjuster3 3Limiting conditions3 4Marking of component and package3 4.1Component3 4.2Package3 5Additional information3 6Ordering information3 6.1Detail specification reference3 6.2Manufacturers component designation3 7Format of the detail specification3 DocumentVo
22、ting DateReport on the voting CECC (Secretariat)968 June 1981CECC (Secretariat)1079 EN 125401:1991 BSI 03-20003 The following information shall be included in each detail specification (DS) together with the required values. Any grouping into families shall be based on the relevant core bore size an
23、d mechanical system and shall be stated in the DS. The general data necessary to identify the DS and the component shall preferably be presented as shown in 7. The numbers in brackets on page 3 indicate the following information which shall be given: 1 Identification of the DS 2 Identification of th
24、e adjuster For (5) and (6) the text to be given in the DS should be suitable for an entry in CECC 00200 and CECC 00300. 3 Limiting conditions (not for inspection purposes) 4 Marking of component and package 4.1 Component Colour coding if specified 4.2 Package Detail specification reference Manufactu
25、rers component designation and name of manufacturer or ideogram Quantity 5 Additional information Information on the reference core should be given. 6 Ordering information 6.1 Detail specification reference 6.2 Manufacturers component designation 7 Format of the detail specification Detail specifica
26、tions for adjusters shall be in accordance with the format of this BDS. (1)The name of the National Standards Organization under whose authority the DS is published and, if applicable, the organization from whom the DS is available (2)The CECC symbol and the number allotted to the DS by the CECC Gen
27、eral Secretariat (3)The number and issue number of the CECC generic or sectional specification as relevant; also national reference if different (4)If different from the CECC number, the national number of the DS, date of issue and any further information required by the national system, together wi
28、th any amendment numbers. (5)A brief description of the type of adjuster (6)Information on typical construction (7)Outline drawing with main dimensions which are of importance for interchangeability, and/or reference to the appropriate national or international document for outlines (8)Application o
29、r group of applications covered by the DS (9)Specify reference core. Operating conditions :Any mechanical or environmental conditions which shall not be exceeded shall be stated as absolute values Storage conditions:for example: 10 C to 70 C, but a combination of high humidity and high temperature s
30、hould be avoided. EN 125401:1991 4 BSI 03-2000 (1)CECC 25401-xxx(2) Specification available from:-(4) ELECTRONIC COMPONENTS OF ASSESSED QUALITY DETAIL SPECIFICATION IN ACCORDANCE WITH (3) Outline and dimensions:- (first angle projection) (7)DETAIL SPECIFICATION FOR Magnetic adjusters intended for in
31、ductor and tuned transformer applications (5) (6) (8) (9) See the current Qualified Products List for the availability of components qualified to this detail specification EN 125401:1991 BSI 03-20005 3Limiting conditions (not for inspection purposes)Values Operating conditions :temperature range spe
32、cified Storage conditions:temperature range specified. 4Marking of component and package 4.1Component : for example: colour coding 4.2Package: DS reference Manufacturers component designation and name of manufacturer or ideogram Quantity. 6Ordering information 6.1DS reference 6.2Manufacturers compon
33、ent designation. Test schedule CECC 25400 Clause Number and Test Conditions of TestILAQLPerformance Requirements GROUP A INSPECTION To be conducted on a sampling basis, lot-by-lot Sub-Group A1 (Non destructive) 3.1.2 to 3.1.4 Visual inspection 11,5 %as in 3.1 Sub-Group A2 (Destructive) 3.3 Adjustmen
34、t range f(kHz) U(mV) S-24 % amax. bmin. (/turn)max. in % NOTEInspection level (IL) and acceptable quality level (AQL) from CECC 00007 (IEC 410). B %L L - - EN 125401:1991 6 BSI 03-2000 Test schedule CECC 25400 Clause Number and Test Conditions of Test Sample size n = sample size; c = acceptance crit
35、erion. a The sample size should be increased if necessary to take account of each position of a multicavity die. B blank BS EN 125401:1997 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It p
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