IEC 60368-1-2013 pdf free.Piezoelectric filters of assessed quality – Part 1: Generic specification.
This part of IEC 60368 specifies the methods of test and general requirements for piezoelectric filters of assessed quality using either capability approval or qualification approval procedures.
1.2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of lEG 60368. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of lEG 60368 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below, For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards.
IEG 60027 (all parts), Letter symbols to be used in electrical technology
IEG 60050(561 ):1 991. International Electrotechnical Vocabulary (1EV) — Chapter 561: Piezoelectric devices for frequency control and selection
IEC 60068-1 :1988, Environmental testing — Part 1: General and guidance
IEC 60068-2-1:1990, Environmental testing — Part 2: Tests — Tests A: Cold
IEC 60068-2-2:1974, Environmental testing — Part 2: Tests – Tests B: Dry heat
IEC 60068-2-3:1969, Environmental testing — Part 2: Tests — Test Ca: Damp heat, steady state
IEC 60068-2-6:1995, Environmental testing — Part 2: Tests — Test Fc: Vibration (sinusoidal)
IEC 60068-2-7:1983, Environmental testing — Part 2: Tests — Test Ga and guidance:Acceleration, steady state
lEG 60068-2-10:1988, Environmental testing — Part 2: Tests — Test J and guidance: Mould growth
IEC 60068-2-13:1983, Environmental testing — Part 2: Tests — Test M: Low air pressure
lEG 60068-2-14:1984, Environmental testing — Part 2: Tests — Test N: Change of temperature IEC 60068-2-17:1994, Environmental testing — Part 2: Tests — Test 0: Sealing
lEG 60068-2-20:1979, Environmental testing — Part 2: Tests — Test T: Soldering
lEG 60068-2-21:1999, Environmental testing — Part 2-21: Tests — Test U: Robustness of terminations and integral mounting devices
lEG 60068-2-27:1987, Environmental testing — Part 2: Tests — Test Ea and guidance: Shock
1.3 Order of precedence
Where any discrepancies occur for any reason, documents shall rank in the following order of precedence:
一the detail specification;
一the sectional specification;
一the generic specification;
any other international document (for example, of the IEC) to which reference is made.
The same order of precedence shall apply to equivalent national documents.
2 Terminology and general requirements
2.1 General
Units，graphical symbols, letter symbols and terminology shall, wherever possible, be taken from the following standards
– IEC 60027
– IEC 60050(561)
– IEC 60642
– IEC 61178-1
– ISO 1000
2.2 Definitions
For the purpose of this part of IEC 60368, the following definitions apply.
2.2.1 piezoelectric filter an electrical filter in which one or more piezoelectric resonators made from quartz crystals or other piezoelectric materials are incorporated
2.2.2 band-pass filter a filter having a single pass-band between two specified stop-bands [IEV 561-03-33].IEC 60368-1 pdf free download.