9.0x4.5MM Mini SMT Electro Magnetic Buzzer 1.5V External Drive

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: 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.

       

*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)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 Temp