4.5.5.
Impact Durability Test (Tumble Test) – protected product
Parameter
Test Method and
Conditions
Conditions /
Sample size
Evaluation Standard
Impact durability (in a
Tumble Tester)
Speaker in drop test box
or representative
mechanics. Random
drops on steel base.
30 units
Component may have reduced
performance, but must still
function properly. The
allowable sensitivity difference
shall not be greater than ±3 dB
from initial sensitivity.
180 drops, 1m
DUT power off
(Ref. IEC60068-2-32
Ed)
(SPR a7.1.1)
4.5.6.
Resistance to Electrostatic Discharge
Parameter
Test Method and
Conditions
Conditions /
Sample size
Evaluation Standard
Resistance to ESD
One pole is grounded and 10 exposures on
All samples fully operable.
the ESD pulse is applied
to the other pole. The
speaker must be stressed
first with one polarisation
and then with the other
polarisation. DUT must be
discharged between each
ESD exposure.
each polarity / 5
units
IEC61000-4-2 Level 4
(SPR c 2.5.1)
All acoustical parameters
according specification with
tolerances increased by
50%.
DUT Power off
Level 4: contact +/- 8kV,
air +/- 15kV
4.5.7.
Water-resistant
Parameter
Test Method and
Conditions
Conditions /
Sample size
Evaluation Standard
Water resistant acc.
IPx7
The part must be
immersed in 1m of water
for 30min in a
10 units
No ingress of water through
the products allowed.
1m, 30min
(Ref. EN60529)
Measurements after samples
are dry.
appropriate test adapter.
All samples fully operable.
The allowable change in
sensitivity shall not be greater
than 3 dB. All other acoustical
parameters according
specification with tolerances
increased by 50 %.
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