Piezoelectric Buzzers

Tech Notes

Piezoelectric Buzzer Selection Guide

TDK offers a wide lineup of piezoelectric buzzers to meet the various needs of our customers.
This page includes Selection Guides for selecting products according to sound pressure level and size, or frequency and size, as well as sound tests to listen to buzzer sounds (single frequencies of 2kHz and 4kHz, and melody sounds).
You can watch a demonstration video of the voice sounds and effects of piezoelectric buzzers using the voice MCU.

Selection Guide according to Sound Pressure Level and Size

Size	60dB min.	70dB min.
12mm	PS1240P02CT3 Sound pressure level: 60dB min. Frequency: 4kHz D12.2x3.5(H)mm	PS1240P02BT Sound pressure level: 70dB min. Frequency: 4kHz D12.2x6.5(H)mm
14mm		PS1420P02CT Sound pressure level: 70dB min. Frequency: 2kHz D14.0x11.0(H)mm	PS1440P02BT Sound pressure level: 75dB min. Frequency: 4kHz D14.0x8.0(H)mm
17mm	PS1740P02CE Sound pressure level: 60dB min. Frequency: 4kHz D17.0x4.6(H)mm	PS1720P02 Sound pressure level: 70dB min. Frequency: 2kHz D17.0x8.0(H)mm	PS1740P02E Sound pressure level: 75dB min. Frequency: 4kHz D17.0x7.5(H)mm

Commercial Grade

Selection Guide according to Frequency and Size

Size	2kHz	4kHz
12mm		PS1240P02CT3 Sound pressure level: 60dB min. Frequency: 4kHz D12.2x3.5(H)mm	PS1240P02BT Sound pressure level: 70dB min. Frequency: 4kHz D12.2x6.5(H)mm
14mm	PS1420P02CT Sound pressure level: 70dB min. Frequency: 2kHz D14.0x11.0(H)mm	PS1440P02BT Sound pressure level: 75dB min. Frequency: 4kHz D14.0x8.0(H)mm
17mm	PS1720P02 Sound pressure level: 70dB min. Frequency: 2kHz D17.0x8.0(H)mm	PS1740P02CE Sound pressure level: 60dB min. Frequency: 4kHz D17.0x4.6(H)mm	PS1740P02E Sound pressure level: 75dB min. Frequency: 4kHz D17.0x7.5(H)mm