Rectangular / Oval / Square Speaker  


Round (10-28mm) Round (29mm above) Rectangular Dual


Square Speaker - AK-251508EC-1
Square speakerrectangular speaker
Type Dynamic speaker
Dimension External diameter 25*15 mm
Rated Input Power 0.25 W
Impedance 8 ohm ± 15% at 2KHz
Sensitivity (S.P.L.) 77dB(W/m) ± 3 dB at AVE 1.0K,1.2K,1.5K,1.8K(Hz).
  90dB(0.25W/0.1m) ± 3 dB
Total Harmonics Distortion Less than 8 % at 1KHz,1.0V.
Max. Input Power Must be normal at 0.5W white noise for 1 minute.
Voice Coil Diameter 9.0 mm
Magnet Rare earth permanent (Nd-Fe-B) magnet Φ8.0 x 1.0 mm
Weight 2.3g ± 0.3g
Appearance Should not exist any obstacle to be harmful to normal operation; damages, cracks, rusts and distortions, etc.
Operation Test Must be normal at program source –0.25W
Polarity When positive voltage is applied to the terminal marked (+), diaphragm should move to the front.
Terminal Strength Capable of withstand 1kg load for 30 seconds without resulting in any damage or rejection.
Temperature Operating temperature: -20℃ to +60℃
  Storage temperature: -30℃ to +70℃


Introduction of Speaker