厂家直销30mm无卤环保语音机器人小喇叭，儿童玩具环保喇叭， 摄像头语音小喇叭

2.1

Main dimensions（Unit: mm）

φ30mm*4.5mm  Shown Fig.3

2.2

Transducing function

DYNAMIC SPEAKER

2.3

Unit weight

About 6±10%（g）

2.4

Impedance

8Ω±15%  at 2.0kHz 1.0Vms Sine Wave .

3.1

Resonance frequency

 600±20%Hz

1.0V Sine wave

3.2

Frequency range

Fo ~20KHz  

S.P.L-10dB

3.3

S.P.L.  ( 0dB=20 ubar )

91dB ±3dB

at 1.0w/0.1m

1.0K，1.2k,1.5KHz,2.0KHz  on average

3.4

Rated power

1W

At  2.82V

3.5

MAX. Power

1.2W

At  3V

3.6

Distortion

10% max.

at 2.0KHz(0.1W/0.1m)

3.7

Operation test

No one should perceive noise of sine wave2.82V of     FO ~ 20kHz .

3.8

Polarity

When a positive DC current is applied to the terminal marked(+), diaphragm shall move forward