BS CECC 40400:1990
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Harmonized system of quality assessment for electronic components: sectional specification: fixed low power surface mounting (chip) resistors
Hardcopy , PDF
08-15-1997
English
08-31-1990
Foreword
Preface
Section 1: Scope
Section 2: Preferred characteristics, ratings and
severities for environmental and overload
tests
2.1 Characteristics
2.1.1 Climatic severities
2.1.2 Temperature characteristics and temperature
coefficients of resistance
2.1.3 Limits for change in resistance
2.1.4 Limits for insulation resistance
2.2 Ratings
2.2.1 Rated resistance
2.2.2 Tolerances on rated resistance
2.2.3 Rated dissipation (in the mounted state)
2.2.4 Limiting element voltage
2.3 Severities for environmental and overload tests
2.3.1 Drying
2.3.2 Overload (in the mounted condition)
2.4 Derating curve (in the mounted condition)
2.5 Information to be specified in the detail
specification
2.5.1 Style and dimensions
2.5.2 Rated dissipation
2.5.3 Limiting element voltage
2.5.4 Resistance range
2.5.5 Tolerances on rated resistance
2.5.6 Climatic category
2.5.7 Limits of resistance change after 1000 h
endurance test
2.5.8 Temperature characteristic of resistance
2.5.9 Derating curve
2.5.10 Marking
2.5.11 Ordering information
2.5.12 Additional information (not for inspection
purposes)
Section 3: Inspection
3.1 Formation of inspection lots
3.2 Test methods
3.3 Qualification approval
Annex
A Fixed sample size Qualification Approval test
schedule for fixed low power surface mounting
(chip) resistors
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