加工定制是
品牌江阴福鼎
型号fds-130047r8w0.5
种类纸盆式(直接辐射)
用途笔记本
外形圆形
组成方式单纸盆
振膜材料非纸质
磁路形式内磁式
频率特性高音（高频）
额定功率0.5w
额定阻抗8ω
频率响应0.95khz
灵敏度88db/w
性噪比88db
是否跨境货源否
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常州扬声器fds-130047r8w0.5超薄喇叭福鼎电子元器件厂家直供
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description
常州fds-130047r8w0.5扬声器超薄喇叭发音福鼎厂家直销
描述
1.characteristics
1.1electrical and mechanical characteristics
item
specifications
01
type
dynamic speaker
02
dimension
external diameter13 mm
03
rated input power
0.5w (long time)
04
max. input power
1.0w for 1 minute
05
impedance
8 ohm ± 15% at2000hz.
06
resonance frequency (fo)
950hz ± 20% at fo, 1v
07
sensitivity (s.p.l.)
88db (0.1w / 0.1m) ± 3 db
atave1.0k,1.2k,1.5k, 2.0khz.
08
frequency range
fo –20khz
09
total harmonics distortion
max 8 % at 1 khz,0.5w.
10
voice coil
diameter7.4mm
11
magnet
rare earth permanent (nd-fe-b) magnet φ6.9 x1.2mm
12
weight
0.65g ± 0.3g
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 – 0.5w
15
buzz, rattle, etc.
should not be audible at2.0v 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℃
2.2. measuring method
test condition
a.standard
temperature : 15 ~ 35℃
relative humidity : 25% ~ 85%,
atmospheric pressure : 860mbar to 1060mbar.
atmospheric pressure : 860mbar to 1060mbar.
b.basic
temperature : 20±3℃
relative humidity : 60% ~ 70%,
atmospheric pressure : 860mbar to 1060mbar
c.standard test fixture
1.input power :0.5w (2.0v )
2.zero level : -db
3.mode : speaker
4.potentiometer range : 50db
5.sweep time : 0.5sec

3.frequencyresponse curve

4.dimension

5. reliability test
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 subjected 5 cycles. one cycle shall be 12 hours and consist of;

05
thermal cycle test.
low temperature: -30℃±3℃, temperature:+70℃±3℃, cycle: 1 hour/cycle each, and then keep 5 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, total 6 times.
09
rated power test
rated power white noise is applied for 96 hours
10
max power 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 of s.p.l shall be within ±3 db .
soldering condition
recommend using constant branding iron in 30w, and in temperature range 350°c.
soldering time not over2 seconds.