BeStar SMT5050-03H02 LF - Manual (Page 4)

3.1 high temperature test
Temperature +80
°C
Duration 240hrs
3.2 low temperature test
Temperature -30
°C
Duration 240hrs
3.3 life test in normal temperature
Temperature 25 ±10°C
Power supply 3.0Vo-p square wave 1/2 duty 4kHz
Duration 240hrs
3.4 Thermal shock
Cycles 50
3.5 Humidity cycle test
Cycles 5
+80 C
30min
3.6 High Temp. life
Temp. +70
°C
Power supply 3.0Vo-p Square wave1/2duty 4kHz
Duration 240hrs
3.7Low Temp. life
Temp. -30
°C
Power supply 3.0Vo-p Square wave 1/2duty 4kHz
Duration 240hrs
30min
-30 °C
3.Reliability Test
+25 C
3h
a
b
12.5 0.5h
3h
c
24h
+55 C
a,c :95-100%RH
b : 90-96%RH
Cycles 6
1 2 3
H
G
F
E
D
C
B
2 1 3
Page:3 of 8
A Transducer
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Date
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www.be-star.com [email protected]
SMT5050-03H02 LF
A 08/07/09 魏奉玲
08/07/09
陶红仲
BS/TET01.544A
SMT5050-03H02 LF
魏奉玲
张秀琴