常州FDS-400-BOX腔体喇叭扬声器喇叭发音福鼎
描述
ITEM
SPECIFICATIONS
01
Type
Dynamic speaker
02
Dimension
External diameter40 mm
03
Rated Input Power
2.0W
04
Max. Input Power
2.2W
05
Impedance
4 ohm ± 15% at 1500Hz.
06
Resonance Frequency (Fo)
500Hz ± 20% at Fo, 1V
07
Sensitivity (S.P.L.)
103dB(1.0W/0.1m) ± 3 dB
at AVE0.6K,0.8K,1.0K,1.5KHz.
08
Frequency Range
Fo –20KHz
09
Total HarmonicsDistortion
Max 8 % at 1 KHz,2.2W.
10
Voice Coil
Diameter 16.3 mm
11
Magnet
Rare earth permanent (Nd-Fe-B) magnet Φ15.0 x3.0 mm
12
Weight
25.5g ± 0.2g
13
Appearance
Should not exist any obstacle to be harmful to normal operation; damages, cracks, rusts and distortions, etc.
14
Operation Test
Must be normal at program source – 2.0W
15
Buzz, Rattle, etc.
Should not be audible at2.83V sine Wave between Fo to 20KHz
16
Polarity
When positive voltage is applied to the terminal marked (+), diaphragm should move to the front.
17
Terminal Strength
Capable of withstand 1kg load for 30 seconds without resulting in any damage or rejection.
18
Temperature
Operating temperature: -20℃ to +60℃
Storage temperature: -30℃ to +70℃
Test Condition
STANDARD
Temperature :15 ~ 35℃
Relative humidity :25% ~ 85%,
Atmospheric pressure : 860mbar to 1060mbar.
BASIC
Temperature : 20±3℃
Relative humidity : 60% ~ 70%,
Atmospheric pressure : 860mbar to 1060mbar
Standard Test Fixture
1.Input Power :1.0W( 2.0V )
2.Zero Level : -dB
3.Mode : SPEAKER
4.potentiometer Range : 50dB
5.Sweep Time : 0.5sec
Frequency Response Curve
RELIABLITY TESTS
Items.
Specifications
01
High temp. Test
Keep 96 hours at +70℃±3℃ and leave 3 hours in normal temperature and then check
02
Low temp. Test
Keep 96 hours at -30℃±3℃ and leave 3 hours in normal temperature and then check
03
Humidity test
Keep 96 hours at + 60℃±3℃ relative humidity 95% and leave 3 hours in normal temperature and then checked.
04
Temp./Humidity cycle
The part shall be subjected5 cycles. One cycle shall be12 hours and consist of;
05
Thermal cycle test.
Low temperature: -30℃±3℃,temperature:+70℃±3℃,cycle:
1hour/cycle each, and then keep5 cycles in a room.
06
Vibration
10~200~10Hz sin-wave sweep 15min.5G(constant)
X,Y, Z 3 direction.2 hours each, total 6 hours.
07
Fix drop test
Fix on jig. Then drop from 152cm height to the concrete floor
X, y, z 6 direction. 5 times each, total 30 times.
08
Free drop test
Free drop from 100cm height to the concrete floor
X, y, z 6 direction.1 times each, total6 times.
09
Rated Power test
Rated Powerwhite noise is applied for 96 hours
10
MaxPower test
Max power 1 min on– 2 min off 10 cycles.
11
Terminal strength test
Capable of withstand 1kg load for 30 seconds without resulting in any damage or rejection.
Criterion:
After these test , the change ofS.P.L shall be within±3 dB .
SOLDERING CONDITION
Recommend using constant branding iron in15 ~ 30W, and in temperature range350°C.
Soldering time not over 3 seconds.