UNE-EN IEC 60068-2-21:2021

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 mounting devices (SMDs).

Table 1 provides details of the applicable tests.

Table 1 Application



Test Type Component Mounted/not mounted

Ua1 Tensile Leaded devices Not mounted

Ua2 Thrust Leaded devices Not mounted

Ub Bending Leaded devices Not mounted

Uc Torsion Leaded devices Not mounted

Ud Torque Threaded stud or screw termination Not mounted

Ue1 Substrate bending Surface mounted devices Mounted

Ue2 Pull/push Surface mounted devices Mounted

Ue3 Shear Surface mounted devices Mounted

Uf1 Body strength Surface mounted devices Not mounted

Uf2 Impact shock Surface mounted devices Not mounted