Buzzers are common audio signalling devices which utilize 2 mainstream technologies - Piezo Buzzers and Magnetic Buzzers. Each have specified advantages and tradeoffs when considering their use, depending on the requirements of your project
|Piezo Buzzer||Magnetic Buzzer|
|Sound pressure level||Higher||Lower|
At the same time, you can classify both piezo buzzers and magnetic buzzers by their driver circuitry - Indicators and Transducer.
Piezo and magnetic indicators come with internal driving circuitry, creating a “plug and play” solution to drive the buzzers. Transducers require you to build external driving circuitry, so it offers the flexibility to customize your circuit.
|Built in driving circuit||Yes||No, external driving circuit required|
|Frequency Range||Fixed||User-selected or multiple|
For more technical information on buzzers, please check out more TechForum threads here: