Buzzer BM5020S-Changzhou FHD electronics Co.,Ltd

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Buzzer BM5020S

Parts shall be measured under one condition (temperature: 5~35 ℃, humidity: 45% ~ 85% R.H., atmospheric pressure: 860 ~ 1060hPa), unless standard conditions (temperature: 25±3 ℃, humidity: 60±10%R.H. atmospheric pressure: 860 ~ 1060hPa) are adjusted.

1. Test conditions Product test conditions: temperature: 5~35 ℃, humidity: 45% ~ 85% R.H., air pressure: 860 ~ 1060hPa. Standard test conditions: temperature: 25±3 ° C., humidity: 60±10%R.H. Air pressure: 860-1060hPa.

Category： SMD electromagnetic passive buzzer

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Keywords: buzzer | horn | materialized film

Product Description

1. Technical Parameter
Measuring condition
Part shall be measured under a condition (Temperature: 5~35℃, 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	Rated Voltage	3Vo-p
2	Operating Voltage	2.5~4.5Vo-p
3	Rated Current	Max.100mA ,at 4000Hz 50% duty Square Wave 3Vo-p
4	Sound Output at 10cm	Min. 75dB,at 4000Hz 50% duty Square Wave 3Vo-p
5	Coil Resistance	12±3Ω
6	Resonant Frequency	4000Hz
7	Operating Temperature	-20℃~+70℃
8	Store Temperature	-40℃~+85℃
9	Net Weight	Approx 0.1g
10	RoHS	Yes

2. Dimensions Unit: mm

*Unit: mm; Tolerance: ±0.3mm Except Specified
*Housing Material: Black LCP
*Terminal plate: 3 soldering pads, tin Plating Brass

3. Electrical And Acoustical Measuring Condition

Recommended Driving Circuit

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

Recommended Setting

4.Frequency Response

3Vo-p 50% duty Square wave,10cm

5. Surface mounting condition

5.1 Reflow soldering

Recommendable reflow soldering condition is as follows.

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 Recommended Soldering pattern

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
a)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.
B) High Temperature Test
The part shall be capable of with standing a storage temperature of +85 ℃ for 96 hours.
c)Low Temperature Test
The part shall be capable of with standing a storage temperature of -40 ℃ for 96 hours.
d)Humidity Test
Temperature:+40 ℃ 3 ℃ Relative Humidity:90% ~ 95% Duration: 48 hours and exposed to room temperature for 6 hours
e)Temperature Shock Test
Temperature:60 ℃/1hour → 25 ℃/3hours →-30 ℃/1hour → 25 ℃/3hours (1cycle)
Total cycle: 10 cycles
f)Drop Test
Standard Packaging From 75cm(Drop on hard wood or board of 5cm thick, three sides, six plain.)
g)Vibration Test
Vibration:1000cycles /min. Amplitude:1.5mm, Duration: 1 hour in each 3 axis

h)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, 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.

6.Packing

packing requirements

braid packing: see drawing requirements
carton number: F6-021, outer box size 35*18.5*36cm(5-pack)
inner box item number: F6-054, inner box size 76 * 45.5cm
carrying tape item number: F6-S50201, upper sealing tape item number: F6-SF133 3000PCS/disc
Each carrying tray is packed in a large PE bag and then put into the inner box; PE bag item number: f6-610

shipping requirements

inner box:

according to customer order

outer box:

according to customer order