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1、BRITISH STANDARD BS EN 168100:1995 Harmonized system of quality assessment for electronic components Sectional specification: quartz crystal units (Capability approval) The European Standard EN 168100:1993 has the status of a British Standard Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08
2、:19:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 168100:1995 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board (L/1), was published under the authority of the Standards Board and comes into effect on 15 April 1995 BSI 11-1999 The following BS
3、I references relate to the work on this standard: Committee reference EPL/49 Drafts for comment 89/28710 DC and 91/30320 DC ISBN 0 580 22475 9 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee EPL/49, Piezo-electric devices
4、 for frequency control and selection, upon which the following bodies were represented: EEA (the Association of Electronics, Telecommunications and Business Equipment Industries) Electronic Components Industry Federation Institute of Physics Institution of Electrical Engineers Ministry of Defence Na
5、tional Supervising Inspectorate Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:19:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 168100:1995 BSI 11-1999i Contents Page Committees responsibleInside front cover National forewordi
6、i Foreword2 Text of EN 1681003 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:19:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 168100:1995 ii BSI 11-1999 National foreword This British Standard has been prepared by Technical Committee EPL/49 and i
7、s the English language version of EN 168100:1993 Sectional specification: quartz crystal units (Capability approval) (includes Amendments A1 and A2:1993), published by the Electronic Components Committee (CECC) of the European Committee for Electrotechnical Standardization (CENELEC). This standard s
8、upersedes BS CECC 68100:1991, which is obsolescent and which will be withdrawn before 8 December 2002. 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 Standa
9、rd does not of itself confer immunity from legal obligations. Cross-references International StandardCorresponding British Standard IEC 68BS EN 60068 Environmental testing BS 2011 Environmental testing EN 16800BS CECC 68000:1990 Harmonized system of quality assessment for electronic components. Gene
10、ric specification: quartz crystal units CECC 00114 Rule of procedure 14. Quality assessment procedures CECC 00114-1:1993Part 1:1993 Approval of manufacturers and other organizations CECC 00114-3:1993Part 3:1993 Capability approval of an electronic component manufacturing activity Summary of pages Th
11、is document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 24, an inside back cover 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 insi
12、de front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:19:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 168100 February 1993 + A1 and A2 February 1993 Supersedes CECC 68100 Issue 1:1989 Descriptors: Quality, electronic component
13、s, quartz crystal units English version Sectional specification: quartz crystal units (Capability approval) (includes Amendments A1 and A2:1993) Spcification intrmediaire: Rsonateurs quartz (Agrmente savoir-faire) (inclut les amendments A1 et A2:1993) Rahmenspezifikation: Schwingquarze (Befhigungsan
14、erkennung) (Einschlielich nderungen A1 und A2:1993) This European Standard was approved by the CENELEC Electronic Components Committee (CECC) on 14 January 1992. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Stan
15、dard 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 to any CENELEC member. This European Standard exists in three official versions (
16、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 official versions. CENELEC members are the national electrotechnical committees of
17、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, with the excpetion of the national electrotechnical committees of Greece, Iceland a
18、nd Luxembourg. CECC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1993 Copyright reserved to CENELEC members Ref. No. EN 168100:1993 E L
19、icensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:19:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 168100:1993 BSI 11-1999 2 Foreword The CENELEC Electronic Components Committee (CECC) is composed of those member countries of the European Committee for Electrotechnical Standardization (CEN
20、ELEC) 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 electronic components, and by the grant of an international
21、ly recognized Mark, or Certificate, of conformity. The components produced under the System are thereby acceptable in all member countries without further testing. This European Standard was prepared by CECC WG 17, Piezoelectric devices for frequency control and selection. The text of the draft base
22、d on documents CECC 68100: Issue 1:1989 (with A1 and erratum) and CECC (Secretariat) 2852 and 2853 was submitted to the formal vote together with the voting report, circulated as document CECC (Secretariat) 2962. The text was approved by CECC as EN 168100:1993 on 14 January 1992. The following dates
23、 were fixed: Contents Page Foreword2 Section 1. Scope Section 2. General, preferred ratings and guidance on detail specifications 2.1Related documents3 2.2Preferred ratings and characteristics3 2.3Information to be prescribed in detail specifications3 Section 3. Capability approval 3.1Eligibility fo
24、r capability approval4 3.2Structural similarity4 Page 3.3Procedures for capability approval4 3.4Description of capability4 3.5Capability qualifying components (CQCs)5 3.6Inspection requirements for CQCs6 3.7Programme for capability approval6 3.8Capability approval report6 3.9Abstract of description
25、of capability6 3.10 Modifications likely to affect capability approval7 3.11 Initial capability approval7 3.12 Maintenance of capability approval19 3.13 Rework and repair work20 3.14 Quality conformance inspection20 3.15 Screening procedures20 Section 4. Test and measurement procedures Annex A Examp
26、le layout of an abstract of description of capability for inclusion in CECC 0020021 Annex B Layout of the front page of a CQC Specification for process control22 Annex C Layout of the front page of a CQC Specification to demonstrate a boundary or limit23 Figure 1 Plan for the selection of CQCs8 Figu
27、re 2 Test plan for deposition of electrode material CQCs9 Figure 3 Test plan for bonding CQCs10 Figure 4 Test plan for mounting CQCs10 Figure 5 Test plan for frequency adjustment CQCs10 Figure 6 Test plans for enclosure CQCs11 Figure 7 Test plan for crystal unit design and performance CQCs12 Figure
28、8 Test plan for CQCs for motional parameters and unwanted responses13 Figure 9 Test plan for Climatic performance CQCs13 Figure 10 Test plan for durability CQCs13 Table 1 Test schedule for initial capability approval14 Table 2 Periodic tests for maintenance of capability approval19 latest date of an
29、nouncement of the EN at national level(doa) 1992-12-08 latest date of publication of an identical national standard(dow) 1993-06-08 latest date of declaration of national standards obsolescence1993-06-08 latest date of withdrawal of conflicting national standards(dow) 2002-12-08 Licensed Copy: sheff
30、ieldun sheffieldun, na, Fri Nov 17 08:19:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 168100:1993 BSI 11-19993 Section 1. Scope This sectional specification applies to quartz crystal units manufactured as custom built products or as standard catalogue items and whose quality is assessed on the b
31、asis of capability approval. It prescribes the preferred ratings and characteristics, with the appropriate tests and measuring methods contained in the generic specification EN 168000 (CECC 68000), and gives the general performance requirements to be used in detail specifications for quartz crystal
32、units. The concept of preferred values is directly applicable to standard catalogue items but does not necessarily apply to custom built products. Section 2. General, preferred ratings and guidance on detail specifications 2.1 Related Documents NOTEThe above references apply to the current editions
33、except for IEC 68 for which the referred edition and the applicable test clauses of EN 168000 shall be used. 2.2 Preferred ratings and characteristics The values given in detail specifications shall preferably be selected from those stated in 2.4 of the generic specification EN 168000. 2.3 Informati
34、on to be prescribed in detail specifications (for both custom built and standard catalogue items) Guidance on the preparation of detail specifications is given in the blank detail specification EN 168101 (CECC 68101). For standard catalogue items each detail specification shall state all the tests a
35、nd measurements required for inspection. This shall, as a minimum, include the relevant tests given in the blank detail specification, with methods and severities. The following information shall be given in each detail specification. 2.3.1 Outline drawing and dimensions The detail specification sha
36、ll include a dimensional drawing of the crystal unit, and/or reference to an appropriate International Standard, to permit easy recognition and to provide information for dimensioning and gauging procedures. The dimensions shall include the overall dimensions of the body of the component and the siz
37、e and spacing of the terminations. All dimensions shall be stated in mm. Terminal connections shall be identified for enclosures with more than two terminations. When a detail specification covers more than one enclosure the dimensions and their associated tolerances shall be placed in a table below
38、 the drawing. When the configuration is other than described above, the detail specification shall state such dimensional information as will adequately describe the crystal unit. 2.3.2 Marking The detail specification shall prescribe the content of the marking on the crystal unit and on the primary
39、 package in accordance with 2.5 of EN 168000. 2.3.3 Ordering information The detail specification shall prescribe that the following information is required when ordering a crystal unit: 1) Quantity 2) Detail specification number, issue number and date and where applicable IEC 68, Basic environmenta
40、l testing procedures. EN 168000, Generic specification: Quartz crystal units. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:19:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 168100:1993 4 BSI 11-1999 3) Nominal frequency in kHz or MHz and overtone order 4) enclosure type 5) frequency t
41、olerance(s) and operating temperature range 6) circuit condition 7) full description of any additional requirements. 2.3.4 Additional information (not for inspection purposes) The detail specification may include information which is not normally required to be verified by the inspection procedure,
42、such as circuit diagrams, curves, drawings and notes needed for clarification. Section 3. Capability approval 3.1 Eligibility for capability approval Prior to making an application for capability approval a manufacturer shall first obtain manufacturers inspection approval in accordance with CECC 001
43、14-I. The primary stage of manufacture shall be as defined in 3.1 of the generic specification EN 168000. 3.2 Structural similarity A Structural similarity exists where a range of crystal units incorporates one or more of the following features in common: materials, methods of sealing and agreed dim
44、ensional range for the enclosure crystal design and crystal processing. 3.3 Procedures for capability approval 3.3.1 General Capability approval in quartz crystal technology covers: the complete design, material preparation and manufacturing techniques, including control procedures and tests the per
45、formance limits claimed for the processes and products, that is, those specified for the CQCs the range of mechanical structures for which approval is granted. 3.3.2 Application for capability approval In order to obtain capability approval the manufacturer shall apply the rules of procedure given i
46、n 2.4 of CECC 00114-III. In an application for capability approval the manufacturer shall define the boundaries of the capability for which approval is sought in accordance with 3.5 of this specification. 3.3.3 Granting of capability approval Capability approval shall be granted when the manufacture
47、r has: prepared a capability manual describing the capability for which he wishes to be approved, to the satisfaction of the ONS agreed with the ONS the range of CQCs, as defined in 2.7 of CECC 00114-III, to be used for the assessment of capability successfully demonstrated that he can design and ma
48、nufacture components which satisfy the requirements of this sectional specification, within the limits of his capability prepared a capability approval test report to the satisfaction of the ONS. 3.4 Description of capability The manufacturer shall prepare a manual describing his capability (see 2.5
49、 of CECC 00114-III), in relation to the technologies involved. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:19:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 168100:1993 BSI 11-19995 The manual shall be approved by the ONS who shall ensure that it is a true and complete record of procedures carried out by the manufacturer during the design, production, testing, inspection and release of his products. This manual is a document that shall be treated as “commercial in confidence”. The manual sh