• EN 60539-2:2004/A1:2010

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    DIRECTLY HEATED NEGATIVE TEMPERATURE COEFFICIENT THERMISTORS - PART 2: SECTIONAL SPECIFICATION - SURFACE MOUNT NEGATIVE TEMPERATURE COEFFICIENT THERMISTORS

    Available format(s): 

    Superseded date:  31-01-2022

    Language(s): 

    Published date:  12-01-2013

    Publisher:  European Committee for Standards - Electrical

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

    FOREWORD
    1 General
       1.1 Scope
       1.2 Normative references
       1.3 Information to be given in a detail specification
       1.4 Terminology
    2 Preferred ratings and characteristics
       2.1 Tolerances on rated zero-power resistance
       2.2 Climatic categories
    3 Quality assessment procedures
       3.1 Primary stage of manufacture
       3.2 Structurally similar components
       3.3 Qualification approval procedures
       3.4 Quality conformance inspection
       3.5 Quality conformance inspection
    4 Test and measurement procedures
       4.1 Mounting
       4.2 Drying and recovery
       4.3 Visual examination and check of dimensions
       4.4 Electrical tests
       4.5 Thermal tests
       4.6 Resistance to soldering heat
       4.7 Solderability
       4.8 Rapid change of temperature
       4.9 Thermal shock
       4.10 Climatic sequence
       4.11 Damp heat, steady state
       4.12 Endurance
       4.13 Shear (adhesion) test
       4.14 Substrate bending test
       4.15 Component solvent resistance
       4.16 Solvent resistance of marking
    Annex A (normative) - Guide for the specification and coding of
            dimensions of surface mount negative temperature
            coefficient thermistors
    Annex ZA (normative) - Normative references to international
             publications with their corresponding European
             publications

    Abstract - (Show below) - (Hide below)

    Applies to surface mount directly heated negative temperature coefficient thermistors, typically made from transition metal oxide materials with semiconducting properties. These thermistors have metallized connecting pads or soldering strips and are intended to be mounted directly on to substrates for hybrid circuits or on to printed boards.

    General Product Information - (Show below) - (Hide below)

    Committee TC 40XB
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Superseded
    Superseded By

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60068-2-58:2015+AMD1:2017 CSV Environmental testing - Part 2-58: Tests - Test Td: Test methods for solderability, resistance to dissolution of metallization and to soldering heat of surface mounting devices (SMD)
    EN 60068-2-2:2007 ENVIRONMENTAL TESTING - PART 2-2: TESTS - TEST B: DRY HEAT
    IEC 60410:1973 Sampling plans and procedures for inspection by attributes
    IEC 60068-2-2:2007 Environmental testing - Part 2-2: Tests - Test B: Dry heat
    EN 60068-2-78:2013 ENVIRONMENTAL TESTING - PART 2-78: TESTS - TEST CAB: DAMP HEAT, STEADY STATE (IEC 60068-2-78:2012)
    EN 60068-2-30:2005 ENVIRONMENTAL TESTING - PART 2-30: TESTS - TEST DB: DAMP HEAT, CYCLIC (12 H + 12 H CYCLE)
    IEC 60068-2-14:2009 Environmental testing - Part 2-14: Tests - Test N: Change of temperature
    EN 60068-2-14:2009 ENVIRONMENTAL TESTING - PART 2-14: TESTS - TEST N: CHANGE OF TEMPERATURE
    EN 60539-1:2016/AC:2017-09 DIRECTLY HEATED NEGATIVE TEMPERATURE COEFFICIENT THERMISTORS - PART 1: GENERIC SPECIFICATION (IEC 60539-1:2016/COR1:2017)
    IEC 60539-1:2016 Directly heated negative temperature coefficient thermistors - Part 1: Generic specification
    IEC 60068-2-30:2005 Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic (12 h + 12 h cycle)
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