TDK SD Single Tone Buzzer ,3 → 6 V dc, 85dB at 1 Metre TDK SD Single Tone Buzzer ,3 → 6 V dc, 85dB at 1 Metre, Mounting Style: PCB Mount, Diameter: 16 mm, Maximum Temperature: +80°C, Minimum Temperature: -20°C, MPN: SD161201 GBP 2.14 1