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产品中心 > BM1370S-0524-45
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BM1370S-0524-45

1.  Technical Parameter

Measuring condition

Part shall be measured under a condition (Temperature: 535, Humidity: 45%85%R.H.,     Atmospheric pressure: 860 1060hPa) unless the standard condition (Temperature: 25±3, Humidity: 60±10%R.H. Atmospheric pressure: 860 1060hPa) is regulated to measure

1

Dimension

12.8×12.8×6.8

2

Net Weight

Approx 1.8g

3

Rated Voltage

5 Vo-p

4

Operating Voltage

47 Vo-p

5

Rated Current

Max.70mA ,at 2.4KHz 50% duty Square Wave 5Vo-p

6

Sound Output

Min. 85dB,at 2.4KHz 50% duty Square Wave 5Vo-p

7

Coil Resistance

45±5Ω

8

Resonant Frequency

2400Hz

9

Operating Temperature

-20℃~+70

10

Store Temperature

-30℃+80℃

Dimensions

Unit: mm

1(1).png 

*Unit: mm; Tolerance: ±0.5mm Except Specified

*Housing Material: Gray LCP

2. Reliability Test

After any following tests the part shall meet specifications without any degradation in appearance and performance except SPL. SPL shall not deviate more than -10 dB from the initial value

2.1 Ordinary Temperature Life Test

The part shall be subjected to 96 hours at 25±10. Input rated voltage Resonant frequency, 1/2 duty Square wave.

2.2 High Temperature Test

The part shall be capable of with standing a storage temperature of +85 for 96 hours.

2.3 Low Temperature Test 

The part shall be capable of with standing a storage temperature of -40 for 96 hours.

2.4 Humidity Test

Temperature:+40℃±3  Relative Humidity:90%95% Duration: 48 hours and expose to room temperature for 6 hours

2.5 Temperature Shock Test

Temperature:70/1hour25/3hours-30/1hour25/3hours (1cycle) Total cycle: 10 cycles

2.6 Drop Test

Standard Packaging From 1.2m(Drop on hard wood or board of 5cm thickthree sides, six plain.)

2.7 Vibration Test

Vibration:1000cycles /min. Amplitude:1.5mm, Duration: 1 hour in each 3 axes

Note:

As this product is not protected from foreign material entering, please make sure that any foreign materials (e.g. magnetic powder, washing solvent, flux, corrosive gas) do not enter this product in your production processes. The functional degradation (e.g. SPL down) may occur if foreign material enter it.

 


 

 

 

 

 

 

 

 

 

 

 


3. Electrical And Acoustical Measuring Condition

 

3.1 Recommended Driving Circuit

Resonant frequency, 1/2 duty cycle. Square wave.Signal amplitude should be large enough to saturate the transistor.

2(1).png 

3.2 Recommended Setting

 

3(1).png

4. Frequency Response

 

4(1).png 

5Vo-p 50% duty Square wave,10cm

Fig3

5. Surface mounting condition

5.1 Reflow soldering

Recommendable reflow soldering condition is as follows.

5(2).png 

 

Note: (1) In automated mounting of the SMD sound transducers on PCB, any bending, expanding and pulling forces or shocks against the SMD sound transducers shall be kept minimum to prevent them from electrical failures and mechanical damages of the devices.

(2) In the reflow soldering, too high soldering temperatures and too large temperature Gradient such as rapid heating or cooling may cause electrical failures and mechanical damages of the devices.

 

 

 


6. Reliability Test

After any following tests the part shall meet specifications without any degradation in appearance and performance except SPL. SPL shall not deviate more than -10 dB from the initial value

6.1 Ordinary Temperature Life Test

The part shall be subjected to 96 hours at 25±10. Input rated voltage Resonant frequency, 1/2 duty Square wave.

6.2 High Temperature Test

The part shall be capable of with standing a storage temperature of +85 for 96 hours.

6.3 Low Temperature Test 

The part shall be capable of with standing a storage temperature of -40 for 96 hours.

6.4 Humidity Test

Temperature:+40℃±3  Relative Humidity:90%95% Duration: 48 hours and expose to room temperature for 6 hours

6.5 Temperature Shock Test

Temperature:60/1hour25/3hours-20/1hour25/3hours (1cycle) Total cycle: 10 cycles

6.6 Drop Test

Standard Packaging From 75cm(Drop on hard wood or board of 5cm thickthree sides, six plain.)

6.7 Vibration Test

Vibration:1000cycles /min. Amplitude:1.5mm, Duration: 1 hour in each 3 axes

6.8 Reflow Test

Use recommendable reflow soldering condition (as shown in 5.1)

(1) No abnormality should be found after reflow

(2) Good soldering to meet soldering requirements

 

 

Note:

As this product is not protected from foreign material entering, please make sure that any foreign materials (e.g. magnetic powder, washing solvent, flux, corrosive gas) do not enter this product in your production processes. The functional degradation (e.g. SPL down) may occur if foreign material enter it.

7. Packing

7.1 Dimension Of Carrier Tape

6(1).png


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