• NEN EN 168000 : 97 AMD 2 98

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    GENERIC SPECIFICATION - QUARTZ CRYSTAL UNITS

    Available format(s): 

    Superseded date:  01-07-2003

    Language(s): 

    Published date:  12-01-2013

    Publisher:  Netherlands Standards

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    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    Section 1 - Scope
    Section 2 - General
    2.1 Order of precedence
    2.2 Related documents
    2.3 Units, symbols and terminology
    2.4 Preferred ratings and characteristics
    2.5 Marking
    Section 3 - Quality assessment procedures
    3.1 Primary stage of manufacture
    3.2 Structurally similar components
    3.3 Subcontracting
    3.4 Manufacturer's approval
    3.5 Approval procedures
    3.6 Procedures for capability approval
    3.7 Procedures for qualification approval
    3.8 Test procedures
    3.9 Screening requirements
    3.10 Rework and repair work
    3.11 Certified test records
    3.12 Delayed delivery
    3.13 Release for delivery
    3.14 Unchecked parameters
    Section 4 - Test and measurement procedures
    4.1 General
    4.2 Alternative methods
    4.3 Precision of measurement
    4.4 Standard conditions for testing
    4.5 Visual inspection
    4.6 Dimensioning and gauging procedures
    4.7 Electrical test procedures
    4.7.1 Frequency and resonance resistance
    4.7.2 Drive level dependency
    4.7.3 Frequency and resonance resistance as a function
           of temperature
    4.7.4 Unwanted responses
    4.7.5 Shunt capacitance
    4.7.6 Load resonance frequency and resistance
    4.7.7 Frequency pulling range
    4.7.8 Motional parameters
    4.7.9 Insulation resistance
    4.8 Mechanical and environmental test procedures
    4.8.1 Robustness of terminations
    4.8.2 Sealing tests
    4.8.3 Soldering (Solderability and resistance to solder
           heat)
    4.8.4 Rapid change of temperature, two-fluid-bath method
    4.8.5 Rapid change of temperature with prescribed time
           of transition
    4.8.6 Bump
    4.8.7 Vibration
    4.8.8 Shock
    4.8.9 Free fall
    4.8.10 Acceleration, steady state
    4.8.11 Dry heat
    4.8.12 Damp heat, cyclic
    4.8.13 Cold
    4.8.14 Climatic sequence
    4.8.15 Damp heat steady state
    4.8.16 Immersion in cleaning solvents
    4.9 Endurance test procedure
    4.9.1 Ageing
    4.9.2 Extended ageing
    4.9.3 Shelf life
    Annex A. Drive level dependency

    Abstract - (Show below) - (Hide below)

    Describes test methods and general requirements for quartz crystal units of assessed quality, by either capability or qualification approval procedures.

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    Document Type Standard
    Publisher Netherlands Standards
    Status Superseded
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