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  • BSI
    BS EN 60512-16-21:2012 Connectors for electronic equipment. Tests and measurements - Mechanical tests on contacts and terminations. Test 16u. Whisker test via the application of external mechanical stresses
    Edition: 2012
    $316.70
    / user per year

Description of BS EN 60512-16-21:2012 2012

This part of IEC 60512, when required by the detail specification, is used for testing connectors within the scope of IEC technical committee 48. It may also be used for similar devices when specified in a detail specification.

The object of this standard is to define a standard test method to assess the possibility of whisker growth by external mechanical stress on the tin and tin-alloy plated parts of a connector in its application (after wire termination, after soldering, after mounting, mated with counterpart).

This standard does not cover internal stress type whisker.

NOTE 1 The test method dealing with internal stress type whisker, which is caused by the formation of intermetallic compound by diffusion, or by the formation of oxide film of the plating surface, or by the difference between coefficients of thermal expansion, is specified in IEC 60068-2-82.

While for internal stress type whisker, it is possible to apply accelerated test conditions, e.g.: by damp heat or temperature cycling, for the external mechanical stress type whisker covered by this standard, due to the different whisker generation mechanism, there are no accelerated conditions. The test detailed in this standard shall then be conducted under normal ambient conditions.

NOTE 2 Physical changes during the application process may cause changes of the material qualities, so that this test cannot be used as a qualification test of a connector in ‘as produced’ condition.

NOTE 3 The conditions specified in this test may accelerate the growth of tin whiskers in a test specimen, but no correlation has been demonstrated between the extent of whisker growth, which may occur in this test, and the extent of whisker growth which may be expected in actual use. Whisker growth in actual use may therefore be less than or greater than the extent of whisker growth found when using this test.



Standard NumberBS EN 60512-16-21:2012
TitleConnectors for electronic equipment. Tests and measurements - Mechanical tests on contacts and terminations. Test 16u. Whisker test via the application of external mechanical stresses
StatusDefinitive
Publication Date2012-07-31
Identical National Standard OfEN 60512-16-21:2012, IEC 60512-16-21:2012
DescriptorsElectrical components, Electrical equipment, Electromechanical devices, Electric connectors, Electric terminals, Electronic equipment and components, Electric plugs, Electric contacts, Mechanical testing, Deflection tests
ICS29.080.30 Insulation systems, 31.220.10 Plug-and-socket devices. Connectors
CommitteeEPL/48
ISBN978 0 580 69264 2
PublisherBSI
Pages16

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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