SMD buzzer with side sound
| No. | Item | Unit | Specification | Condition |
| 1 | Oscillation Frequency | Hz | 2731 | Vo-p=1/2duty, square wave |
| 2 | Operating Voltage | Vp-p | 3 ~8 | |
| 3 | Rated Voltage | Vp-p | 5 | |
| 4 | Current Consumption | mA | MAX. 80 | at Rated Voltage |
| 5 | Sound Pressure Level | dB | MIN. 85 | at 10cm at Rated Voltage |
| 6 | Coil Resistance | Ω | 30±5 | |
| 7 | Operating Temperature | ℃ | -30 ~ +70 | |
| 8 | Storage Temperature | ℃ | -40 ~ +85 | |
| 9 | Dimension | mm | Φ9.0x H3.2 | See appearance drawing |
| 10 | Weight (MAX) | gram | 0.8 | |
| 11 | Housing Material | LCP( Black ) | ||
| 12 | Leading Pin | Tin-Plated Brass(Sn) | See appearance drawing | |
| 13 | Environmental Protection Regulation | RoHS |
Dimension:
Buzzer Driving Mode
Since the self-excited buzzer is driven by DC voltage, it does not need to use an AC signal to drive. It only needs to output the driving level at the drive port and amplify the driving current through the triode to make the buzzer sound. It is very simple, and the self-excited buzzer is not explained here. This paper only explains the other excited buzzer which must be driven by 1/2-D square wave signal.
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