Acoustic Characteristics:
The oscillation frequency, current consumption and sound pressure are measured by the
measuring instruments shown below
In the measuring test, buzzer is placed as follows:
Typical Frequency Response Curve
RELIABLY TEST:
NO.
ITEM
TESTING CONDITION
VARIANCE AFTER TEST
1
2
3
Humidity
High temp.
Low temp.
40±2℃, 93(+2/-3)%RH, 96HRS
+80±2℃, 96HRS
-30±2℃, 96HRS
-30±2℃,
30minutes
room temp. 15minutes
+80±2℃,
30minutes
room temp. 15minutes
5 cycles
3 times from height of 70cm onto
the surface of 10mm thick
wooden board.
Make the test for the directions of
X Y and Z (total 0.5 hours).
4
Temperature
cycling
All specifications must be
satisfied after the test.
5
Drop test
6
Vibration test
To-and-fro. sweep time (from 10
to 55 Hz and then 55 to 10 )
under single amplitude of 10mm
is3minute.
The part leads (pins) shall be
Solder
7
heat immersed
resistance
specifications
without
any
degradation
maintained at 260± 5℃ for a
performance.in appearance and
in
molten
solder
After the test part shall meet
period of 30 seconds.
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