产品名称：FDS-2209040R8w
尺寸：22x9mm
额定功率：0.5 W
阻抗：8±15% Ω
重量：1.5g
共振频率：20KHz
灵敏度/声压：87± 3 dB
谐振频率：600±20%Hz
频响曲线： As shown in fig(2)
1.SPECIFICATION HDK-220908ZA-1W1 (RoHS)
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ITEM |
SPECIFICATIONS |
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01 |
Type |
Dynamic speaker |
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02 |
Dimension |
External diameter 22*9 mm |
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03 |
Rated Input Power |
0.5W (Long Time) |
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04 |
Max. Input Power |
1.0W (Short Time) |
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05 |
Impedance |
8 ohm ± 15% at 1500Hz. |
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06 |
Resonance Frequency (Fo) |
900Hz ± 20% at Fo, 1V |
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07 |
Sensitivity (S.P.L.) |
87dB(0.1W/0.1m) ± 3 dB |
at AVE 1.2– 2.5KHz. |
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90dB (0.5W / 0.1m) ± 3 dB |
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08 |
Frequency Range |
Fo – 20KHz |
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09 |
Total Harmonics Distortion |
Max 8 % at 1 KHz,0.5W. |
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10 |
Voice Coil |
Diameter 11*4 mm |
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11 |
Magnet |
Rare earth permanent (Nd-Fe-B) magnet Φ10.4*3.45*1.2mm |
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12 |
Weight |
2.0g ± 5%g |
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13 |
Appearance |
Should not exist any obstacle to be harmful to normal operation; damages, cracks, rusts and distortions, etc. |
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14 |
Operation Test |
Must be normal at program source – 0.5W |
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15 |
Buzz, Rattle, etc. |
Should not be audible at 2.0V sine Wave between Fo to 20KHz |
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16 |
Polarity |
When positive voltage is applied to the terminal marked (+), diaphragm should move to the front. |
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17 |
Terminal Strength |
Capable of withstand 1kg load for 30 seconds without resulting in any damage or rejection. |
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18 |
Temperature |
Operating temperature: -20℃ to +60℃ Storage temperature: -30℃ to +70℃ |
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1. MEASURING METHOD
2-1 .Test Condition
STANDARD
Temperature : 15 ~ 35℃
Relative humidity : 45% ~ 85%,
Atmospheric pressure : 860mbar to 1060mbar.
JUDGEMENT
Temperature : 20±3℃
Relative humidity : 60% ~ 70%,
Atmospheric pressure : 860mbar to 1060mbar
2-2 . Standard Test Fixture
1.Input Power : 0.8W ( 2.53V )
2.Zero Level : -dB
3.Mode : SPEAKER
4.potentiometer Range : 50dB
5.Sweep Time : 0.5sec
2. RELIABLITY TESTS
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Items. |
Specifications |
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01 |
High temp. Test |
Keep 96 hours at +70℃±3℃ and leave 3 hours in normal temperature and then check |
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02 |
Low temp. Test |
Keep 96 hours at -30℃±3℃ and leave 3 hours in normal temperature and then check |
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03 |
Humidity test |
Keep 96 hours at + 60℃±3℃ relative humidity 95% and leave 3 hours in normal temperature and then checked. |
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04 |
Temp./Humidity cycle |
The part shall be subjected 5 cycles. One cycle shall be 12 hours and consist of;
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05 |
Thermal cycle test. |
Low temperature: -30℃±3℃, temperature:+70℃±3℃, cycle: 1 hour/cycle each, and then keep 5 cycles in a room. |
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06 |
Vibration |
10~200~10Hz sin-wave sweep 15min. 5G(constant) X,Y, Z 3 direction. 2 hours each, total 6 hours. |
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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. |
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08 |
Free drop test |
Free drop from 100cm height to the concrete floor X,y, z 6 direction. 1 times each, total 6 times. |
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09 |
Rated Power test |
Rated Power white noise is applied for 96 hours |
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10 |
Max Power test |
Max power 1 min on – 2 min off 10 cycles. |
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11 |
Terminal strength test |
Capable of withstand 1kg load for 30 seconds without resulting in any damage or rejection. |
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Criterion: After these test , the change of S.P.L shall be within ±3 dB . |
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