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Speaker manufacturer  A & B Components Co. Ltd.

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10-20mm 21-36mm 36mm above Rectangular Cabinet

mini spekaermicro speaker

ITEM   SPECIFICATIONS
1 Type Dynamic speaker
2 Dimension External diameter 28 mm
3 Rated Input Power 0.25 W
4 Max. Input Power 0.5 W
5 Impedance 8 ohm ± 15% at 1500Hz
6 Resonance Frequency (Fo) 650 Hz ± 20% at Fo, 1V
7 Sensitivity (S.P.L.) 77dB(W/m) ± 3 dB at AVE 1.0K,1.2K,1.5K,2.0K(Hz).
    90dB(0.25W/0.1m) ± 3 dB
8 Frequency Range Fo – 5KHz
9 Total Harmonics Distortion Max 8 % at 1 KHz,0.25W.
10 Voice Coil Diameter 10.5 mm.
11 Magnet Rare earth permanent (NdFeB) magnet Φ9.5x1.5 mm.
12 Weight 4.0g ± 0.5 g.
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 0.25W
15 Buzz, Rattle, etc. Should not be audible at 1.42V 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℃

Response Data Sheet


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