1. SPECIFICATION HDK-201408EA-1C (RoHS)
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ITEM |
SPECIFICATIONS |
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01 |
Type |
Dynamic speaker |
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02 |
Dimension |
External diameter 20*14 mm |
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03 |
Rated Input Power |
0.8W. |
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04 |
Max. Input Power |
1.0W. |
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05 |
Impedance |
8 ohm ± 15% at 2000 Hz |
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06 |
Resonance Frequency (Fo) |
1100 Hz ± 20% at Fo, 1V |
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07 |
Sensitivity (S.P.L.) |
92dB(0.8W/0.1m) ± 3 dB |
at AVE 0.8K,1.0K,1.2K,1.5K Hz. |
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08 |
Frequency Range |
Fo – 20K Hz |
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09 |
Total Harmonics Distortion |
Max. 10% at 1K Hz ,0.8W. |
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10 |
Voice Coil |
Diameter 8.5 mm |
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11 |
Magnet |
Rare earth permanent (Ferrite) magnet Φ8.0 x 1.0 mm |
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12 |
Weight |
1.5g ± 0.3g |
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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 0.8W |
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15 |
Buzz, Rattle, etc. |
Should not be audible at 2.53V 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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2. 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
898995850
