# Piezo Buzzer - PS1240

**Type:** Product page · **SKU:** ADA160 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/piezo-buzzer-ps1240.html ([markdown](https://core-electronics.com.au/piezo-buzzer-ps1240.html.md))

Piezo buzzers are used for making beeps, tones and alerts. This one is petite but loud! Drive it with 3-30V peak-to-peak square wave. To use, connect one pin to...

## Pricing

- **Price:** $3.05 (inc GST) — $2.77 AUD, exc GST
- **Quantity discounts:** 10+ $2.69 (exc GST) · 50+ $2.64 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 8 today, and up to 500 more in 8–12 days.

## Description

Piezo buzzers are used for making beeps, tones and alerts. This one is petite but loud! Drive it with 3-30V peak-to-peak square wave. To use, connect one pin to ground (either one) and the other pin to a square wave out from a timer or microcontroller. For the loudest tones, stay around 4 KHz, but works quite well from 2KHz to 10KHz. For extra loudness, you can connect both pins to a microcontroller and swap which pin is high or low ('differential drive') for double the volume.

Note - nothing will happen if you 'just' connect a power source. You'll need to drive this piezo with a **square wave signal**, which allows different frequency/pitches (really handy!)

## Dimensions

- Diameter: 11.90mm
- Height: 6.53mm
- Weight: 0.70g
 
## Documents

- [Datasheet](https://core-electronics.com.au/attachments/localcontent/piezobuzzer_96764a22ea7.pdf)

## Guides for this product

- [Infrared Sensing, Hardware Interrupts, and the Arduino](https://core-electronics.com.au/guides/arduino/infrared-sensors-arduino/)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/6/160-01_1.jpg)