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產(chǎn)品中心 > BP1440S-0540
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BP1440S-0540

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±3Humidity: 60±10%R.H. Atmospheric pressure: 860 1060hPa) is regulated to measure.

1(2).png

1

Resonant Frequency 

4000±500Hz


2

Operating Voltage

120 Vp-p


3

Rated Current

Max.3mA ,at 4KHz 50% duty Square Wave 5Vp-p


4

Sound Output at 10cm

Min. 85dB,at 4KHz 50% duty Square Wave 5Vp-p


5

Capacitance

15000±30%pF at 1KHz


6

Operating Temperature

-30℃~+70


7

Store Temperature

-40℃~+85


8

Net Weight

Approx 0.5g


9

RoHS

Yes


2. Dimensions                             Unit: mm

2(2).png

*Unit: mm; Tolerance: ±0.3mm Except Specified

*Housing Material: Black LCP

3. Electrical And Acoustical Measuring Condition

Recommended Setting

3(2).png

4. Frequency Response

4(1).png

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

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.

5.2 Soldering pattern

6(2).png

6Reliability 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 120cm(Drop on hard wood or board of 5cm thick,

three 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.




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