# How to solder leads to the Piezo Bender

**URL:** <https://forum.digikey.com/t/how-to-solder-leads-to-the-piezo-bender/4505>\
**Category:** Audio Products\
**Tags:** soldering, buzzer-elements-piezo-benders, pui-audio-inc, faqs, db-unlimited\
**Created:** [October 3, 2019, 7:19am UTC](https://forum.digikey.com/t/how-to-solder-leads-to-the-piezo-bender/4505 "2019-10-03T07:19:14Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Barley\_Li](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/barley_li/32/558_2.png) [@Barley\_Li](https://forum.digikey.com/u/Barley_Li)\
**Post date:** [October 3, 2019, 7:19am UTC](https://forum.digikey.com/t/how-to-solder-leads-to-the-piezo-bender/4505/1 "2019-10-03T07:19:14Z")

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[Piezo Benders](https://www.digikey.com/short/qfbdrzj4) (or Piezo Elements) are devices that employ the use of Piezoelectricity in order to create an audible tone in transducers, indicators or as standalone devices. Piezo benders are a very sensitive device with a sub-millisecond response time, which is much shorter than a wink time. When attaching solder leads to a piezo bender such as [P08080-1](https://www.digikey.com/en/products/detail/db-unlimited/P08080-1/9990567) from [DB Unlimited](https://www.digikey.com/en/supplier-centers/d/db-unlimited), you must be careful in order to avoid damaging the device.

 ![Piezo%20element](https://global.discourse-cdn.com/digikey/original/2X/d/d7ac78aa22e8d5f193c86273fe81cf1ec0a5f19c.jpeg)

In our experience, if it feels challenging for you to solder the leads to your piezo, we suggest instead choosing one of [DigiKey’s piezo elements with pre-soldered leads](https://www.digikey.com/short/z22fzp5h), such as [AB1541B-LW100-R](https://www.digikey.com/products/en?keywords=AB1541B-LW100-R) from [PUI](https://www.digikey.com/en/supplier-centers/p/pui-audio), or you can check with us to see if a custom solution might work for you.

 ![PUI](https://global.discourse-cdn.com/digikey/original/2X/b/b244bbafda53702ee55d737124e0de29f8f3a441.jpeg)

Here are the general steps to solder leads to a piezo bender.

1. Use a soldering iron at 300°C max.
2. Strip and tin the wire.
3. Apply flux to the ceramic disc where you want the joint, then add a small amount of solder with the iron for no longer than 0.5 seconds.
4. Position the tinned wire as desired over solder that has been applied to the ceramic disc, then apply the iron again for no longer than 0.5 seconds to complete the joint.
5. Do the same for the metal disc with keeping the iron time to a max of 2 seconds.

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<div class="post-metadata">

**Author:** ![Aron\_Muetzel](https://avatars.discourse-cdn.com/v4/letter/a/3ec8ea/32.png) [@Aron\_Muetzel](https://forum.digikey.com/u/Aron_Muetzel)\
**Post date:** [October 15, 2019, 5:14pm UTC](https://forum.digikey.com/t/how-to-solder-leads-to-the-piezo-bender/4505/2 "2019-10-15T17:14:40Z")

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Attached is a guideline from PUI that includes some actual solder recommendations and further soldering tips.[pui-audio-soldering-wire-bender.pdf](https://forum.digikey.com/uploads/short-url/9NnYonYylh9CKly9ahsezuIU95m.pdf) (30.6 KB)