IEC 60738-1:1998 pdf download – Thermistors – Directly heated positive step-function temperature coefficient – Part 1: Generic specification

IEC 60738-1:1998 pdf download – Thermistors – Directly heated positive step-function temperature coefficient – Part 1: Generic specification.
This International Standard prescribes terms and methods of test for positive step’lunction temperature coefficient thermistors, insulated and non-insulated types, typically made from terro-electric semi-conductor materials.
It establishes standard terms, Inspection procedures and methods of test for use in detail specifications for Qualification Approval and for Quality Assessment Systems for electronic components
1.2 Normative references
The following normative documents contain provisions which, through reference in this text. constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All normative documents are subiect to revision, and parties to agreements based on this International Standard are encouraged to investigate Ihe possibility of applying the most recent editions of the normative documents indicated below. Members of IEC and ISO maintain registers of currently valid International Standards
In the case of IEC 60068 publications, the referenced edition shall be used, regardless of any subsequent new edition(s) and amendment(s).
IEC 60027-1:1992, Letter symbols to be used in electrical technology — Part 1: General
IEC 60050: International Eleclrotechnical Vocabulary
IEC 60062:1992, Marking codes for resistors and capacitors
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 and guidance: Vibration (sinusoidal)
IEC 60068 -2-lI :1981, Environmental testing – Part 2: Tests – Test Ka: Salt mist
IEC 60068-2•1 3:1983. Environmental testing — Pail 2: Tests — Tesl M: Low air pressure
IEC 60068.2-14:1984, Environmental testing – Part 2: Tests – Test N: Change of temperature
IEC 60068-2-20:1979, Environmental testing — Part 2: Tests — Test T: Soldering
IEC 60068-2•2I :1983, Environmental testing — Part 2: Tests – Test Li: Robustness of terminations and integral mounting devices
IEC 60068-2.27:1987. Environmental testing — Part 2: Tests — Test Ea and guidance: Shock IEC 60068-2-29:1987, Environmental testing — Part 2: Tests — Test Eb and guidance: Bump
lEG 60068-2•30:1 980, Environmental testing – Part 2: Tests – Test Db and guidance: Damp heat, cyclic (12, 12-hour cycle)
lEG 60068-2-45:1980, Environmental testing — Part 2: Tests — Test XA and guidance.’ Immersion in cleaning solvents
lEG 60249-2-4:1987, Base materials for printed circuits — Part 2: Specifications — Specification No. 4.’ Epoxide woven glass fabric copper-clad laminated sheet, general purpose grade
lEG 60294:1969, Measurement of the dimensions of a cylindrical component having two axial terminations
lEG 60410:1973, Sampling plans and procedures for inspection by attributes lEG 60617: Graphical symbols for diagrams
lEG OC 001002-3:1998. Rules of procedure ol the IEC Quality Assessment System for Electronic Components (IECO) — Part 3: Approval procedures
IEC QC 001003: GuIdance documents
ISO 1000:1992, SI units and recommendations for the use of their multiples arid of certain
other units
2 Technical data
2.1 Units and symbols
Units, graphical symbols, letter symbols and terminology shall, whenever possible. be taken horn the following publications:
IEC 60027
IEC 60050
IEC 60617
ISO 1000
2.2 DefinItions
When further items are required they shall be derived In accordance with the prrnciples of the documents listed above.
2.2.1
type
a group of components having similar design features and the similarity of whose manufacturing techniques enables them to be grouped together either for qualification approval or for quality conformance inspection
They are generally covered by a single detail specification.
NOTE – Components descnbed en several detail specifications may, in corn. cases, be considered as b.4onng to tle same type but they are qenerally covered by a single detail specification.