1    

Rated Voltage (V)

3

2

Operating Voltage (V)

2~4

3

Resonant Frequency (Hz)

2731

4

Coil Resistance (Ω)

       15±2        

5

*Sound Output at 10cm (dB)          

≥83

6

*Current Consumption (mA)

≤100

7

Operating Temperature (^oC)

-25~+70

8

Storage Temperature (^oC)

-30~+80

9

Weight (g)

0.3

No.

Testing Condition

Variance after test

1

Humidity

50±5, 93(+2/-3)%RH, 96HRS

All specifications must be

satisfied after the test.

2

+80±2, 96HRS

3

Low temp.

-30±2, 96HRS

4

Temperature

Cycling

-30±2,    30minutes

room temp.   15 minutes

+80±2,    30 minutes

 room temp.   15 minutes

5 cycles

5

Drop test

3 times from height of 70cm onto the surface of 10mm thick wooden board.

6

Vibration test

Make the test for the directions of X Y and Z (total 0.5 hours).

To-and-fro sweep time (from 10 to 55 Hz and then 55 to 10) under single amplitude of 1.0mm is 1 minute.

7

Solder heat resistance

The part leads (pins) shall be immersed in molten solder maintained at 260±10 for a period of 10 seconds.

After the test part shall meet specifications without any

degradation in appearance

and performance.