1、BRITISH STANDARD BS EN 125401:1997 Incorporating Amendment No.1 to BS CECC25401:1984 (renumbers BS as BSEN125401:1997) Harmonized system of quality assessment for electronic components Blank detail specification: Adjustersused with magnetic oxide (ferrite) cores for use in inductors and tuned transf
2、ormers The European Standard EN125401:1991 has the status of a BritishStandard ICS 29.100.10BSEN125401:1997 BSI 03-2000 ISBN 0 580 34751 6 National foreword This BritishStandard has been prepared by Technical Committee EPL/51 and is the English language version of EN125401:1991 Harmonized system of
3、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 (CECC). Cross-ref
4、erences The BritishStandards 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 Electronic Catalog
5、ue. 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 document compri
6、ses a front cover, an inside front cover, pagesi andii, theEN title page, pages2 to6 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 issued since public
7、ation Amd. No. Date CommentsBSEN125401:1997 BSI 03-2000 i Contents Page National foreword Inside front cover Foreword 2 Text of EN125401 3ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN125401 December 1991 UDC: Descriptors: Quality, electronic components, adjusters English version Blank
8、 Detail Specification: Adjusters used with magnetic oxide (ferrite) cores for useininductors and tuned transformers Spcification Particulire Cadre: Btonnetsderglage employs avecdesnoyauxen oxydes magntiques(ferrites) destins aux bobinesdinductance et transformateursaccords Vordruck fr Bauartspezifik
9、ation: AbgleichefrKerne aus magnetischenOxiden(Ferriten) inSpulenundabgestimmten 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 CECC25401 Issue1 1982 of the corresponding CEC
10、C 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 concerning such national standards may
11、 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 CENELEC member into its own language and
12、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, Norway, Portugal, Spain, Sweden, Switz
13、erland, 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 Electrotechnique Europisches Komitee fr E
14、lektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1991 Copyright reserved to CENELEC members Ref. No. EN125401:1991 EEN125401:1991 BSI 03-2000 2 Foreword The CENELEC Electronic Components Committee (CECC) is composed of those member countries of the European Committee
15、 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 assessment procedures for electronic components
16、, 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, and has been prepared for those countries
17、 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 CECC00100: Basic Rules(1974). At the date of printing of this document, the member
18、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 Group12: “Magnetic Components”. It is related to the generic
19、 specification printed as CECC25000 and sectional specification printed as CECC25400. In accordance with the requirements of document CECC00100, it is based, wherever possible, on the Recommendations of the International Electrotechnical Commission and in particular on IEC367: Cores for inductors an
20、d 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 Foreword 2 1 Identification of the DS 3 2 Identification of the adjuster
21、 3 3 Limiting conditions 3 4 Marking of component and package 3 4.1 Component 3 4.2 Package 3 5 Additional information 3 6 Ordering information 3 6.1 Detail specification reference 3 6.2 Manufacturers component designation 3 7 Format of the detail specification 3 Document Voting Date Report on the v
22、oting CECC (Secretariat)968 June 1981 CECC (Secretariat)1079EN125401:1991 BSI 03-2000 3 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 and mechanical system and
23、shall be stated in the DS. The general data necessary to identify the DS and the component shall preferably be presented as shown in7. The numbers in brackets on page3 indicate the following information which shall be given: 1 Identification of the DS 2 Identification of the adjuster For(5) and(6) t
24、he text to be given in the DS should be suitable for an entry in CECC00200 and CECC00300. 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 Manufacturers component designation and
25、 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 specifications for adjusters shall be i
26、n 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 General Secretariat (3) The num
27、ber 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 with any amendment numbers.
28、(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 or group of application
29、s 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 to70 C, but a combination of high humidity and high temperature should be avoided.EN1
30、25401:1991 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 inductor and tuned t
31、ransformer applications (5) (6) (8) (9) Seethe current Qualified Products List for the availability of components qualified to this detailspecificationEN125401:1991 BSI 03-2000 5 3 Limiting conditions (not for inspection purposes) Values Operating conditions : temperature range specified Storage con
32、ditions : temperature range specified. 4 Marking of component and package 4.1 Component : for example: colour coding 4.2 Package : DS reference Manufacturers component designation and name of manufacturer or ideogram Quantity. 6 Ordering information 6.1 DS reference 6.2 Manufacturers component desig
33、nation. Test schedule CECC25400 ClauseNumberand Test Conditions of Test IL AQL Performance 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 1 1,5% as in 3.1 Sub-Group A2 (Destructive) 3.3 Adjustment range
34、f(kHz) U(mV) S-2 4% a max. b min. (/turn)max. in% NOTEInspection level (IL) and acceptable quality level (AQL) from CECC00007 (IEC410). B %L L -EN125401:1991 6 BSI 03-2000 Test schedule CECC25400 ClauseNumberand Test Conditions of Test Sample size n=sample size; c=acceptance criterion. a The sample
35、size should be increased if necessary to take account of each position of a multicavity die. B blankBS EN 125401:1997 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on st
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