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Homepage>BS EN IEC 60068-2-21:2021 Environmental testing Tests. Test U: Robustness of terminations and integral mounting devices

BS EN IEC 60068-2-21:2021

Environmental testing Tests. Test U: Robustness of terminations and integral mounting devices

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Označení normy:	BS EN IEC 60068-2-21:2021
Počet stran:	50
Vydáno:	2021-09-13
ISBN:	978 0 580 99121 9
Status:	Standard

DESCRIPTION

BS EN IEC 60068-2-21:2021

This standard BS EN IEC 60068-2-21:2021 Environmental testing is classified in these ICS categories:

19.040 Environmental testing
31.190 Electronic component assemblies

This part of IEC 60068 is applicable to all electrical and electronic components whose terminations or integral mounting devices are liable to be submitted to stresses during normal assembly or handling operations and is also applicable to surface mount devices (SMDs).

The recommended test methods suitable for specific terminations/lead of devices are shown in Table 1.

Table 1 – Selection of test methods suitable for specific terminations/leads

Test method		Component	Mounted/not mounted	See Clause
Test	Type
Ua₁	Tensile	Leaded devices	Not mounted	Clause 4
Ua₂	Thrust	Leaded devices	Not mounted	Clause 4
Ub	Bending	Leaded devices	Not mounted	Clause 5
Uc	Torsion	Leaded devices	Not mounted	Clause 6
Ud	Torque	Threaded stud, screw or other terminations	Not mounted	Clause 7
Ue₁	Substrate bending	Surface mount devices	Mounted	Clause 8
Ue₂	Pull/push	Surface mount devices	Mounted	Clause 8
Ue₃	Shear	Surface mount devices	Mounted	Clause 8
Uf₁	Body strength	Surface mount devices	Not mounted	Clause 9
Uf₂	Impact shock	Surface mount devices	Not mounted	Clause 9

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