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SMD Buzzer

1.5 Volt DC SMD Electromagnetic Transducer , Micro SMT Magnet Buzzer
Detailed Product Description
Resonant Frequency:2730HzSize:D9.0mm*H4.5mm
SPL:Min.85dB At 10cm Input 2730Hz/1.5Vo-p 1/2 Duty Square WaveVoltage(VDC):1.5V
Buzzer:Magnetic BuzzerColour:Black
Housing Material:PPSProcessing:SMD

1.5 Volt DC SMD Electromagnetic Transducer , Micro SMT Magnet Buzzer

Quick Detail:

  1. Size: D9.0mm*H4.5mm
  2. SPL: Min.85dB at 10cm Input 2730Hz/1.5Vo-p 1/2 Duty Square Wave
  3. Coil Resistance: 5.5+/-1 ohm
  4. Operating Voltage: 1-2.5Vo-p
  5. Rated Current: Max.90mA Input 2730Hz/1.5Vo-p 1/2 Duty Square Wave

Description:

  1. buzzer
  2. SMD Electro-Magnetic Buzzer
  3. SMD Electro-Magnetic Element
  4. 1.5V Buzzer
  5. small Buzzer

Specification:

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

1.5 Vo-p

2

Operating Voltage

1~2.5 Vo-p

3

Rated Current

Max.90mA ,at 2730Hz 50% duty Square Wave 1.5Vo-p

4

Sound Output at 10cm

Min. 85dB,at 2730Hz 50% duty Square Wave 1.5Vo-p

5

Coil Resistance

5.5±1Ω

6

Resonant Frequency

2730Hz

7

Operating Temperature

-20℃~+70℃

8

Store Temperature

-30℃~+80℃

9

Net Weight

Approx 1g

10

RoHS

Yes

2. Dimensions Unit: mm



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

*Housing Material: Black PPS

*Terminal plate: 2 soldering pads, Gold 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



1.5Vo-p 50% duty Square wave,10cm

Surface mounting condition

(1)Reflow soldering


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 temperatur Gradient such as rapid heating or cooling may cause electrical failures and mechanical damages of the devices

(2)Soldering pattern


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

(1)Ordinary Temperature Life Test

The part shall be subjected to 96 hours at 25±10℃. Input rated voltage

Test Resonant frequency, 1/2 duty Square wave.

(2)High Temperature

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

(3)Low Temperature Test

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

(4)Humidity Test

Temperature:+40℃±3℃ Relative Humidity:90%~95% Duration: 48 hours

and expose to room temperature for 6 hours

Temperature Shock Test

Temperature:60℃ /1hour→ 25℃/3hours→-20℃/1hour→ 25℃/3hours (1cycle)

Total cycle: 10 cycles

(5)Drop Test

Standard Packaging From 75cm(Drop on hard wood or board of 5cm thick,

three sides, six plain.)

(6)Vibration Test

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

(7)Reflow Test

Use recommendable reflow soldering condition (as shown in 5.1)

No abnormality should be found after reflow

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.

Packing