ITEM

SPECIFICATIONS

01

Type

Dynamic speaker

02

Dimension

External diameter 23 mm

03

Rated Input Power

0.5 W

04

Max. Input Power

0.8 W

05

Impedance

8 ohm ± 15% at 1500Hz.

06

Resonance Frequency (Fo)

1700 Hz ± 20% at  Fo, 1V

07

Sensitivity (S.P.L.)

91 dB(0.1W/0.1m) ± 3 dB

 at AVE1.0K 1.2K 1.5K 2.0K Hz

08

Frequency Range

Fo – 20 KHz

09

Total Harmonics Distortion

Max 5 % at 1 KHz,0.5 W.

10

Voice Coil

Diameter 10.3 mm

11

Magnet

 Rare earth permanent (Nd-Fe-B) magnet Φ8.0 x 1.0 mm

12

Weight

3.2 g ± 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 – 0.5 W

15

Buzz, Rattle, etc.

Should not be audible at 2.0V 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℃