泰州福声电子科技有限公司-----电声产品专业制造商
FUSHENG ELECTRONICS------Acoustic Components Professional Manufacturer
3.TESTING METHOD
Standard Measurement conditions
Temperature:25±2℃ Humidity:45-65%
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:
4. VOLTAGE / CURRENT / SOUND PRESSURE CHARACTERISTICS
FS9042-3v
泰州福声电子科技有限公司-----电声产品专业制造商
FUSHENG ELECTRONICS------Acoustic Components Professional Manufacturer
5.Soldering Condition
(1)Recommendable reflow soldering condition is as follows
(Reflow soldering is twice)
Note:It is requested that reflow soldering should be executed
after heat of product goes down to normal.
Heat resistant line
(Used when heat resistant reliability test is performed)
(2)Manual soldering
Manual soldering temperature 350
ºC
within 5 sec.
FS9042-3v
泰州福声电子科技有限公司-----电声产品专业制造商
FUSHENG ELECTRONICS------Acoustic Components Professional Manufacturer
6. RELIABILITY TEST
NO.
1
ITEM
High Temperature
Test (Storage)
Low Temperature
Test (Storage)
TEST CONDITION AND REQUIREMENT
After being placed in a chamber with 80 2ºC for 96 hours and then
being placed in normal condition for 2 hours.
Allowable variation of SPL after test: 10dB.
After being Placed in a chamber with -30 2ºC for 96 hours and then
being placed in normal condition for 2 hours.
Allowable variation of SPL after test: 10dB.
After being Placed in a chamber with 90-95% R.H. at 40 2ºC for 96
hours and then being placed in normal condition for 2 hours.
Allowable variation of SPL after test: 10dB.
The part shall be subjected to 5 cycles. One cycle shall be consist of：
+70ºC
+25ºC
+25ºC
2
3
Humidity Test
4
Temperature Cycle
Test
-
20ºC
5
Drop Test
6
Vibration Test
7
Solderability
Test
Terminal Strength
Pulling Test
:
:
:
:
8
Allowable variation of SPL after test: 10dB.
Drop on a hard wood board of 4cm thick, any directions ,6 times,
at the height of 75cm .
Allowable variation of SPL after test: 10dB.
After being applied vibration of amplitude of 1.5mm with 10 to 55 Hz
band of vibration frequency to each of 3 perpendicular directions for
2 hours .
Allowable variation of SPL after test: 10dB.
Lead terminals are immersed in rosin for 5 seconds and then
immersed in solder bath of +300 5ºC for 3 1 seconds .
90% min. lead terminals shall be wet with solder
(Except the edge of terminals).
The force of 9.8N(1.0kg) is applied to each terminal in axial direction for
10 seconds.
No visible damage and cutting off.
a) Temperature : +5 ~ +35℃
a)
温度
: +5 ~ +35℃
a) Temperature : +25 ± 2℃
a)
温度
: +25 ± 2℃
b) Humidity : 45-85%
b)
湿度
: 45-85%
b) Humidity : 60-70%
b)
湿度
: 60-70%
c) Pressure : 860-1060mbar
c)
气压
: 860-1060mbar
c) Pressure : 860-1060mbar
c)
气压
: 860-1060mbar
TEST CONDITION.
Standard Test Condition
一般测试条件
Judgment Test Condition
争议时测试条件
FS9042-3v
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