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I.S. EN 60738-1:2006

Current
Current

The latest, up-to-date edition.

THERMISTORS - DIRECTLY HEATED POSITIVE TEMPERATURE COEFFICIENT - PART 1: GENERIC SPECIFICATION
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2006

Publisher

National Standards Authority of Ireland

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Units and symbols
5 Preferred values
  5.1 Climatic categories
  5.2 Marking
  5.3 Spacings
6 Quality assessment procedures
  6.1 General
  6.2 Primary stage of manufacture
  6.3 Subcontracting
  6.4 Structurally similar components
  6.5 Qualification approval procedures
  6.6 Rework and repair
  6.7 Release for delivery
  6.8 Certified test records of released lots
  6.9 Delayed delivery
  6.10 Alternative test methods
  6.11 Manufacture outside the geographical limits of
       IECQ NSIs
  6.12 Unchecked parameters
7 Test and measurement procedures
  7.1 General
  7.2 Standard conditions for testing
  7.3 Drying and recovery
  7.4 Visual examination and check of dimensions
  7.5 Zero-power resistance
  7.6 Temperature coefficient of resistance
  7.7 Insulation resistance (for insulated types only)
  7.8 Voltage proof (for insulated types only)
  7.9 Resistance/temperature characteristic
  7.10 Dissipation factor at U[max] (delta)
  7.11 Response time by ambient temperature change
       (t[a])
  7.12 Response time by power change (t[p])
  7.13 Thermal time constant by ambient temperature change
       (tau[a])
  7.14 Thermal time constant by cooling (tau[c])
  7.15 Robustness of terminations
  7.16 Solderability
  7.17 Resistance to soldering heat
  7.18 Rapid change of temperature
  7.19 Vibration
  7.20 Bump
  7.21 Shock
  7.22 Climatic sequence
  7.23 Damp heat, steady state
  7.24 Endurance
  7.25 Tripping current and tripping time
  7.26 Non-tripping current
  7.27 Residual current
  7.28 Surface temperature
  7.29 Inrush current
  7.30 Mounting (for surface mount thermistors only)
  7.31 Shear (adhesion) test
  7.32 Substrate bending test
Annex A (normative) Interpretation of sampling plans
         and procedures as described in IEC 60410
         for use within the IEC quality assessment system
         for electronic components (IECQ)
Annex B (informative) Mounting for electrical measurements
         (except surface mount types)
Annex C (informative) Mounting for temperature measurements
Annex ZA (normative) Normative references to international
         publications with there corresponding European
         publications

Defines terms and methods of test for positive step-function temperature coefficient thermistors, insulated and non-insulated types, typically made from ferro-electric semi-conductor materials. Addresses standard terms, inspection procedures and methods of test used in detail specifications for Qualification Approval and Quality Assessment Systems for electronic components.

DevelopmentNote
For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
DocumentType
Standard
Pages
63
PublisherName
National Standards Authority of Ireland
Status
Current

HD 323.2.20 : 200S3 BASIC ENVIRONMENTAL TESTING PROCEDURES - TESTS - TEST T - SOLDERING
IEC 60068-1:2013 Environmental testing - Part 1: General and guidance
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)
IEC 60068-2-27:2008 Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock
IEC 60068-2-20:2008 Environmental testing - Part 2-20: Tests - Test T: Test methods for solderability and resistance to soldering heat of devices with leads
EN 60068-2-1:2007 Environmental testing - Part 2-1: Tests - Test A: Cold
IECQ 001002-3:2005 IEC QUALITY ASSESSMENT SYSTEM FOR ELECTRONIC COMPONENTS (IECQ) - RULES OF PROCEDURE - PART 3: APPROVAL PROCEDURES
IEC 61249-2-7:2002 Materials for printed boards and other interconnecting structures - Part 2-7: Reinforced base materials clad and unclad - Epoxide woven E-glass laminated sheet of defined flammability (vertical burning test), copper-clad
EN 60068-2-2:2007 Environmental testing - Part 2-2: Tests - Test B: Dry heat
IEC 60068-2-21:2006 Environmental testing - Part 2-21: Tests - Test U: Robustness of terminations and integral mounting devices
IEC 60068-2-13:1983 Basic environmental testing procedures - Part 2-13: Tests - Test M: Low air pressure
EN 60068-1:2014 Environmental testing - Part 1: General and guidance
EN 61760-1:2006 SURFACE MOUNTING TECHNOLOGY - PART 1: STANDARD METHOD FOR THE SPECIFICATION OF SURFACE MOUNTING COMPONENTS (SMDS)
IEC 60068-2-11:1981 Basic environmental testing procedures - Part 2-11: Tests - Test Ka: Salt mist
IEC 61760-1:2006 Surface mounting technology - Part 1: Standard method for the specification of surface mounting components (SMDs)
EN 61249-2-7:2002/corrigendum:2005 MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING STRUCTURES - PART 2-7: REINFORCED BASE MATERIALS CLAD AND UNCLAD - EPOXIDE WOVEN E-GLASS LAMINATED SHEET OF DEFINED FLAMMABILITY (VERTICAL BURNING TEST), COPPER-CLAD
IEC 60410:1973 Sampling plans and procedures for inspection by attributes
EN 60068-2-27:2009 Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock
IEC 60294:2012 Measurement of the dimensions of a cylindrical component with axial terminations
EN 60068-2-21:2006 Environmental testing - Part 2-21: Tests - Test U: Robustness of terminations and integral mounting devices
IEC 60068-2-2:2007 Environmental testing - Part 2-2: Tests - Test B: Dry heat
IEC 60062:2016 Marking codes for resistors and capacitors
EN 60062:2016/AC:2016-12 MARKING CODES FOR RESISTORS AND CAPACITORS (IEC 60062:2016/COR1:2016)
EN 60068-2-29:1993 Environmental testing - Part 2: Tests - Test Eb and guidance: Bump
EN 60068-2-78:2013 Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady state
EN 60068-2-13:1999 Environmental testing - Part 2: Tests - Test M: Low air pressure
EN 60068-2-6:2008 Environmental testing - Part 2-6: Tests - Test Fc: Vibration (sinusoidal)
IEC 60068-2-29:1987 Environmental testing. Part 2: Tests. Test Eb and guidance: Bump
IEC 60717:2012 Method for the determination of the space required by capacitors and resistors with unidirectional terminations
EN 60068-2-11:1999 Environmental testing - Part 2: Tests - Test Ka: Salt mist
IEC 60068-2-1:2007 Environmental testing - Part 2-1: Tests - Test A: Cold
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 60068-2-45:1992/A1:1993 Environmental testing - Part 2: Tests - Test Xa and guidance: Immersion in cleaning solvents
EN 60068-2-14:2009 Environmental testing - Part 2-14: Tests - Test N: Change of temperature
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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