9MM Small Magnetic SMD Buzzers 1.5 Volt ( External Drive Type )

Delivery Time:To be advised
Certification:ISO9001 TS16949

9MM Small Magnetic SMD Buzzers 1.5 Volt ( External Drive Type )

Quick Detail:

Size: D9.0mm*H4.5mm SPL: Min.85dB at 10cm Input 2730Hz/1.5Vo-p 1/2 Duty Square Wave Coil Resistance: 5.51 ohm Operating Voltage: 1-2.5Vo-p Rated Current: Max.90mA Input 2730Hz/1.5Vo-p 1/2 Duty Square Wave

Description:

buzzer SMD Electro-Magnetic Buzzer SMD Electro-Magnetic Element 1.5V Buzzer 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.

*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

Surface mounting condition

(1)Reflow soldering

       Note:

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. 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 o