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Round 10-28mm 29mm above Rectangular Box

 

Mini Speaker Mylar Speaker

ITEM   SPECIFICATIONS
1 Type Dynamic speaker
2 Dimension External diameter 18 mm
3 Rated Input Power 0.3 W
4 Max. Input Power 0.5 W for 1 minute.
5 Impedance 16ohm ± 15% at 1 KHz
6 Resonance Frequency (Fo) 1K Hz ± 20% at Fo, 1V
7 Sensitivity (S.P.L.) 84dB(0.1W/0.1m) ± 3 dB at 1K, 1.5K, 2K, 2.5KHz.
    70dB(0.3W/1m) ± 3 dB
8 Frequency Range Fo – 20K Hz
9 Total Harmonics Distortion Max 10 % at 1 KHz,0.3W.
10 Voice Coil Diameter 8.5 mm
11 Magnet Rare earth permanent ( Nd-Fe-B ) magnet Φ 7.8×1.3mm
12 Weight 1.9g ± 0.2g
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 0.3W
15 Buzz, Rattle, etc. Should not be audible at 2.19V 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 +50℃
    Storage temperature: -25℃ to +60℃

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