2403-263-00077 Datasheet, PDF (19/20 Pages) Knowles Electronics – SPEAKER-16-4.7-MFD

2403 263 00077
Shock Resistance Test (Free Fall Test) - unprotected product
Parameter
Mechanical shock
(Ref. IEC60068-2-32
Ed), Procedure 1
Test Method and
Conditions
Drop of sample without
fixation of release plane
from a height of 1.5m
onto concrete floor.
Conditions /
Sample size
Each 3 shocks
in both
directions of the
3 axes.
(18 drops in
total)
Evaluation Standard
Component may have reduced
performance, but must still
function properly. The allowable
sensitivity difference shall not
be greater than ±3dB from
initial sensitivity.
Impact Durability Test (Tumble Test) – protected product
Parameter
Impact durability (in a
Tumble Tester)
(Ref. IEC60068-2-32
Ed)
(SPR a7.1.1)
Test Method and
Conditions
Speaker in drop test box
or representative
mechanics. Random
drops on steel base.
Conditions /
Sample size
30 units
180 drops, 1m
DUT power off
Evaluation Standard
Component may have reduced
performance, but must still
function properly. The
allowable sensitivity difference
shall not be greater than ±3 dB
from initial sensitivity.
Resistance to Electrostatic Discharge
Parameter
Resistance to ESD
IEC61000-4-2 Level 4
(SPR c 2.5.1)
Test Method and
Conditions
One pole is grounded and
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.
Level 4: contact +/- 8kV,
air +/- 15kV
Conditions /
Sample size
10 exposures on
each polarity / 5
units
DUT Power off
Evaluation Standard
All samples fully operable.
All acoustical parameters
according specification with
tolerances increased by
50%.
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