2403-260-00001 Datasheet, PDF (15/19 Pages) Knowles Electronics – 11x15x3.5 MM SPEAKER

2403-260-00001
5.5.1.3. Temperature Cycle Test
Parameter
Change of Temperature
(Ref. EN 60068-2-14)
Test Method and
Conditions
-40°C/+85°C
Transition time <3 min.
See Figure 5-1 below
Duration
5 cycles
>2h for each
temperature
Evaluation Standard
Measurements after 2 hours
recovery time.
All samples fully operable.
All acoustical parameters
according specification with
tolerances increased by 50 %.
+85°C
-40°C
2h 2h 2h 2h 2h 2h 2h 2h 2h 2h
3m 3m 3m 3m 3m 3m 3m 3m 3m 3m
Figure 5-1: Temperature Cycle Test
5.5.1.4. Temperature / Humidity Cycle Test
Parameter
Damp heat, cyclic
(Ref. IEC 60068-2-30)
Test Method and
Conditions
+25°C/+55°C
90% to 95% RH.
Temp. change time <3h
See Figure 5-2 below
Caution: no condensed
water on products!
Duration
6 cycles / 144h
12h at each
temperature
(inclusive temp
ramp up/down)
Evaluation Standard
Measurements after 2 hours
recovery time.
All samples fully operable.
All acoustical parameters
according specification with
tolerances increased by 50 %.
+55°C
+25°C
9h 9h 9h 9h 9h 9h 9h 9h 9h 9h 9h 9h
3h 3h 3h 3h 3h 3h 3h 3h 3h 3h 3h 3h
Figure 5-2: Temperature / Relative Humidity Cycle Test
Release – Revision: M
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