15mm Micro Speaker Manufacturers & Suppliers

1

Type

Dynamic speaker

2

Dimension

External diameter 15 mm

3

Rated Input Power

0.3 W

4

Impedance

8 ohm ± 15% at 800Hz

5

Resonance Frequency (Fo)

800 Hz ± 20% at Fo, 1V

6

Sensitivity (S.P.L.)

74dB(W/m) ± 3 dB at AVE 0.8K,1K,1.2K,1.5K(Hz).

88dB(0.3W/0.1m) ± 3 dB

7

Frequency Range

Fo – 5KHz

8

Distortion

Less than 10 % at 1KHz 0.3 W

9

Max. Input Power

Must be normal at 0.5W white noise for 1 minute.

10

Voice Coil

DiameterΦ8.35 mm

11

Magnet

Rare earth permanent (ND) magnet Φ7.5×1.3mm

12

Weight

1.43g ± 0.3g

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 0.89V 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

Load Test

0.3 W white noise is applied for 96 hours and satisfy the test listed on item 05,06,13,15

19

High Temp. Test

Keep 96 hours at +70℃±3℃ and leave 3 hours in normal temperature and then check

20

Low Temp. Test

Keep 96 hours at -20℃±3℃ and leave 3 hours in normal temperature and then check

21

Humidity Test

Keep 96 hours at + 60℃±3℃ relative humidity 95% and leave 3 hours in normal temperature and then checked.

22

Drop Test

Drop the speakers contained in normal box onto the board 20mm thick 10 times from the height of 0.75m and then should satisfy the test listed on item 13 and 15