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ITEM
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SPECIFICATIONS
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1
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Type
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Dynamic speaker
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2
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Dimension
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External diameter 50 mm
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3
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Rated Input Power
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0.5 W
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4
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Max. Input Power
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1.0 W for 1 minute.
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5
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Impedance
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8 ohm ± 15% at 1500Hz
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6
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Resonance Frequency (Fo)
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300 Hz ± 20% at Fo, 1V
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7
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Sensitivity (S.P.L.)
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92dB(0.1W/1m) ± 3 dB at AVE 0.6K,0.8K,1.0K,1.2K Hz.
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97dB(0.5W/0.1m) ± 3 dB
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8
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Frequency Range
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Fo – 20KHz
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9
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Total Harmonics Distortion
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Max. 10% at 1K Hz ,0.5W.
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10
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Voice Coil
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Diameter 13.3 mm
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11
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Magnet
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Rare earth permanent (Nd-Fe-B) magnet Φ12.5 x 1.5mm
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12
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Weight
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13.2g ± 1g
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13
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Appearance
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Should not exist any obstacle to be harmful to normal operation; damages, cracks, rusts and distortions, etc.
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14
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Operation Test
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Must be normal at program source 0.5W
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15
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Buzz, Rattle, etc.
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Should not be audible at 2.0V sine Wave between Fo to 20KHz
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16
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Polarity
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When positive voltage is applied to the terminal marked (+), diaphragm should move to the front.
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17
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Terminal Strength
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Capable of withstand 1kg load for 30 seconds without resulting in any damage or rejection.
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18
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Temperature
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Operating temperature: -20℃ to +60℃
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Storage temperature: -30℃ to +70℃
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