1、BRITISH STANDARD BS EN 141101:1992 Specification for Harmonized system ofquality assessment for electronic components Blank detail specification Lead-screw actuated and rotary preset potentiometers The European Standard EN141101:1992 has the status of a BritishStandardBSEN141101:1992 BSI04-2000 ISBN
2、 0 580 34521 1 Amendments issued since publication Amd. No. Date CommentsBSEN141101:1992 BSI 04-2000 i Contents Page National foreword ii Foreword ii 1 Ratings and characteristics 3 1.1 Derating 3 2 Marking 3 3 Related documents 4 4 Ordering information 4 5 Certified test records 4 6 Delayed deliver
3、y 4 7 Additional information 4 8 Inspection requirements 4 Table 1 2 Table 2 5BSEN141101:1992 ii BSI 04-2000 National foreword This BritishStandard has been prepared under the direction of the Electronic Components Standards Policy Committee and is the English language version of EN141101 “Blank det
4、ail specification: Lead-screw actuated and rotary preset potentiometers” published by the European Committee for Electrotechnical Standardization (CENELEC) Electronic Components Committee (CECC). It is identical with CECC41101 Issue2:1992. The related CECC41101 Issue1:1978 and BS CECC41101:1978 are
5、both now declared obsolescent. EN141101 was prepared by CECC WG4B “Potentiometers” and theUnitedKingdom participation in the drafting was provided by Technical Committee ECL/4: Capacitors and resistors for electronic equipment. Scope. The standard lists the ratings, characteristics and inspection re
6、quirements which shall be included as mandatory requirements in accordance with BS CECC41100 in any detail specification for these devices. The Technical Committee has reviewed the provisions of IEC410 and CECC00200, to which reference is made in the text and has decided that they are acceptable for
7、 use in conjunction with this standard. The BritishStandard which implements the CECC Rules of Procedure is BS9000 “General requirements for a system for electronic components of assessed quality” Part2:1991 “Specification for the national implementation of the CECC System.” Detail specification. De
8、tail specifications shall comply with the requirements of this Blank Detail Specification and BS CECC00111: Rule of Procedure11. Specifications. Part4:1991 Regulations for CECC Detail Specifications. A British Standard does not purport to include all the necessary provisions of a contract. Users of
9、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 BritishStandard CECC41000:1976 BS CECC41000:1977 Harmonized system of quality assessmen
10、t for electronic components: Generic specification for potentiometers (Identical) CECC41100:1976 BS CECC41100:1978 Harmonized quality assessment for electronic components: Sectional specification: Lead-screw actuated and rotary preset potentiometers (Identical) IEC62:1974 BS1852:1975: Specification
11、for marking codes for resistors and capacitors (Identical) IEC68 BS2011: Environmental Testing IEC286 BS6062: Packaging of electronic components for automatic handling Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theEN title page, page2, the CECC title
12、 page, pageii, pages1 to13 and abackcover. 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.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN141101 July1992 UDC: Descriptors: Quali
13、ty, electronic components,potentiometers English version Blank Detail Specification: Lead-screw actuated and rotary preset potentiometers Spcification Particulire Cadre: Potentiomtres de rglage commandes par vis Vordruck fr Bauartspezifikation: Trimmpotentiometer mit Einstellung durch Gewindespindel
14、 oder durch direktes Drehen This European Standard was approved by the CENELEC Electronic Components Committee (CECC) on8 August1991. The text of this standard consists of the text of CECC41101 Issue21991 of the corresponding CECC Specification. CENELEC members are bound to comply with CEN/CENELEC I
15、nternal 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 be obtained on application to the General Secretariat of the CECC or t
16、o 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 notified to the CECC General Secretariat has the same status as the off
17、icial 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, Switzerland, and United Kingdom. The membership of the CECC is identical, wi
18、th 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 Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-105
19、0 Brussels 1992 Copyright reserved to CENELEC members Ref. No. EN141101:1992 E2 blankEN141101:1992 ii BSI 04-2000 Foreword The CENELEC Electronic Components Committee (CECC) is composed of those member countries of the European Committee for Electrotechnical Standardization (CENELEC) who wish to tak
20、e 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 electronic components, and by the grant of an internationally recognized Mark, o
21、r 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 those countries taking part in the System who wish to issue national har
22、monized specifications for LEAD-SCREW ACTUATED AND ROTARY PRESET POTENTIOMETERS. It should be read in conjunction with the current regulations for the CECC System. Preface This blank detail specification was prepared by CECC WG4B: “Potentiometers”. It is based, wherever possible, on the Publications
23、 of the International Electrotechnical Commission, and in particular on IEC393-1: Potentiometers. Part1 (Terms, inspection procedures and methods of test). The text of this Issue2 was circulated to the CECC for voting in the document indicated below and was ratified by the President of the CECC for
24、printing as a CECC Specification. Effective date This Issue2 shall become effective for all new applications for qualification approval on15 December1991. Issue1 shall remain valid to cover all past approvals. Document Date of Voting Report on the Voting CECC(Secretariat)2503 June1991 CECC(Secretari
25、at)2821EN141101:1992 BSI 04-2000 1 Identification of the detail specification (DS) and the component The first page of the DS should have the layout recommended on page2. The numbers in brackets correspond to the indications to be completed thereunder: For(5) and(6) the text to be given in the DS sh
26、ould be suitable for an entry in the CECC00200 (QPL) and CECC00300 (Library List). (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 b
27、y the CECC General Secretariat (3) The number and issue number of the CECC generic and 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 sy
28、stem, together with any amendment numbers (5) A brief description of the potentiometer (6) Information on typical construction (where applicable); for example: non-wirewound, leadscrew actuated etc. (7) An outline drawing with main dimensions which are of importance for interchangeability, and/or re
29、ference to the appropriate national or international document for outlines. Alternatively, this drawing may be given in an annex to the DS, but(7) should always contain an illustration of the general outer appearance of the component (8) The application or group of applications covered, or, preferab
30、ly, the level(s) of quality assessment covered by the DS (9) Reference data giving information on the most important properties of the component which allow comparison between the various component types intended for the same, or for similar, applications.EN141101:1992 2 BSI 04-2000 Table 1 Specific
31、ation available from: (1) CECC41101 (2) (4) ELECTRONIC COMPONENTS OF ASSESSED QUALITY IN ACCORDANCE WITH CECC41000 AND CECC41100 (3) (7) Brief description (5) Constructional details (6) All dimensions in mm ASSESSMENT LEVEL: (8) (9) Rated dissipation at70 c Limiting element voltage V d.c or a.c Insu
32、lation Voltage V d.c or a.c peak Normal Low (W) (r.m.s) Air pressure Air pressure Information about manufacturers who have components qualified to this detail specification is available in the current CECC00200: Qualified Products List.EN141101:1992 BSI 04-2000 3 1 Ratings and characteristics 1.1 De
33、rating Potentiometers covered by this specification are derated according to the curve: The detail specification shall state the maximum allowable dissipation at temperatures other than70 C. All break points on the curve shall be verified by test. 2 Marking 2.1 The following marking information, in
34、the order of importance given below, is required: 1) Rated resistance 2) Tolerance on rated resistance 3) Resistance law (if other than linear) 4) Detail specification and style 5) Date code 6) Manufacturers name and trade mark. RESISTANCE RANGE The range of values in each style is given in the qual
35、ified products list (QPL) STANDARD SELECTION TOLERANCE . . . . . . . . . . . . . . . . . . . . . . . . .% TEMPERATURE CHARACTERISTIC OF %R k|. . . . . .%R| RESISTANCE(20 C to70 C) (%R/R.%T k. . . . . .10 6 / C) CLIMATIC CATEGORY . . . ./ . . . ./ . . . . VIBRATION SEVERITY . . .Hz to . . .Hz,0,75mm
36、or98m/s 2(whichever is the less severe) BUMP SEVERITY 390m/s 2 ;4000bumps or SHOCK SEVERITY 490m/s 2 ;11ms LOW AIR PRESSURE (if applicable) 8,5kPa(85mbar) LIMITS OF RESISTANCE CHANGE |. . .%R+. . . .7| AFTER ENDURANCE TESTING STARTING TORQUE mNm (max.) END STOP TORQUE (if applicable) Not less than5
37、times the starting torque TOTAL MECHANICAL TRAVEL . . . . . . turns or . . . . LIMITING SLIDER CURRENT mA ROTATIONAL NOISE . . . . . or . . . .%REN141101:1992 4 BSI 04-2000 2.2 Where space allows the potentiometer shall be clearly marked with1) and2) above using one of the coding methods specified i
38、n IEC62 and with as many of the remaining items as is practicable. 2.3 The package containing the potentiometer shall be clearly marked with1) to6). 2.4 Any additional marking shall be so applied that no confusion can arise. 3 Related documents IEC286, Tape packaging of components for automatic hand
39、ling (may apply). IEC62, Marking codes for resistors and capacitors. IEC68, Basic environmental testing procedures for Electronic Components and Electronic Equipment. IEC410, Sampling procedures and tables for inspection by attributes for Electronic Components of Assessed Quality. CECC00200, Qualifi
40、ed Products List. CECC41000:1976, Generic specification for potentiometers. CECC41100:1978, Sectional specification: Lead screw actuated and rotary preset potentiometers. 4 Ordering information Orders for potentiometers covered by this specification shall contain the following information: a) Resist
41、ance value and tolerance b) Resistance law (if other than linear) c) Number of the detail specification and style reference. 5 Certified test records Not applicable 6 Delayed delivery The provisions of3.6 of CECC41000 shall apply, except that the inspection level shall be reduced toS-2 and the perio
42、d shall be extended to two years. The period for carbon composition types shall remain at one year. 7 Additional information The detail specification may include information (which is not required to be verified by the inspection procedure) such as circuit diagrams, curves, drawings or notes needed
43、for the clarification of the detail specification. The resolution shall also be given (wirewound types only). 8 Inspection requirements 8.1 When drying is called for, Procedure1 of4.2 of CECC41000 shall be used. 8.2 When it is desired to obtain qualification approval by adopting the fixed sample siz
44、e procedure, use shall be made of the test schedule given for that purpose in CECC41100. The conditions of test and the performance requirements shall be identical to those prescribed for quality conformance inspection in the detail specification. 8.3 In the quality conformance inspection the values
45、 representative of the whole approved range shall be tested within one year (Groups A, B and C only). EN141101:1992 BSI 04-2000 5 Table 2 Clause number and test (SeeNote1) Conditions of test (SeeNote1) IL AQL Performance requirements (SeeNote1) (SeeNote2) Group A Inspection Lot by lot Sub-Group A1 N
46、on destructive 4.3.1 Visual inspection 4.3.2 Marking II 1,0% As in4.3.1 As in4.3.2 Sub-Group A2 Non destructive 4.5 Element resistance II 0,1% As in4.5.1 Sub-Group A3 Non destructive 4.3.3 Dimensions (Gauging) S-2 1,0% As specified in the detail specification Sub-Group A4 Non destructive 4.6 Termina
47、l resistance 4.4 Continuity 4.15 Rotational noise Resistance a to b Resistance a to c (SeeNotes4 and5) Method B II 0,65% k. . .7 or . . .%R k. . .7 or . . .%R As in4.4 k. . .7 or . . .%R Sub-Group A5 Non destructive 4.12 Voltage proof 4.8 Mechanical and electrical travel Insulated styles only Normal
48、 air pressure SeeappendixD.1.1 of41000 SeeC.1.1 andC.1.2 and Note4 Lead screw types Effective operating turns Rotary types S3 1,0% As in4.12.5 70% of rated mechanical travel As prescribed in the detail specification Group B Inspection Lot by lot Sub-Group B1 Non destructive 4.16 Starting torque Seea
49、ppendixC.1.3 of41000 S2 1,5% . . . mNm Sub-Group B2 Non destructive 4.22.3 Container sealing (if applicable) Temperature85 C to90 C II 0,65% As in4.22.3 Sub-Group B3 Destructive 4.23.1 Soldering Solderability Solder bath method Temperature:235 5 C Duration:2 0.5s S3 0,65% The terminations shall be examined for good tinning as evidenced by free flowing of the solder with wetting of the terminations For notes seepage13EN141101:1992 6 BSI 04-2000Table 2 Clause number and test (SeeNote1) Conditions of test (SeeNote1) IL AQL Performance requirem
