ST-03BLA Datasheet, PDF (3/7 Pages) Soberton Inc. – Magnetic Transducer

C:ENVIRONMENT TEST
No.
Item
1
High temp. test
2
Low temp. test
3
Thermal shock
3/7
Test condition
Evaluation standard
After being placed in a chamber at +80℃ for 96
hours.
After being placed in a chamber at -40℃ for 96
hours.
The part shall be subjected to 10 cycles. One
cycle shall consist of;
+20°C
15 min
-40°C
30 min
+20°C
15 min
+80°C
30 min
The part shall be subjected to 10 cycle and consist
of;
After the test the part
shall meet
specifications without
any degradation in
appearance and
performance except
SPL. after 4 hours at
+25℃, The SPL shall
be in ± 10 dBA
compared with initial
one.
+70℃
4 ^{Temp. / Humidity Cycle}
a, b: 90~98%RH
c: 80~98%RH
+25℃
a
b
3hrs 12±0.5hrs 3hrs
c
24hrs
D: RELIABILITY TEST
No. Item
Test condition
□ Applying rated voltage, rated frequency, square wave ,
1/2 duty cycle：
Operating
life test ^{Ordinary temperature}
1
The part shall be subjected to 96 hours at room
temperature.
Evaluation standard
After the test the part shall
meet specifications without
any degradation in
appearance and performance
except SPL. after 4 hours at
+25℃,The SPL shall be in ±
10 dBA compared with
initial one.
TEST CONDITION.
Standard Test Condition : a)Temperature: +5~+35℃ b)Humidity:45~85% c)Pressure: 860~1060mbar
Judgment Test Condition :a)Temperature:+25±2℃ b)Humidity:60~70% c)Pressure: 860~1060mbar