# 120VAC to 5VDC

**URL:** <https://community.sparkfun.com/t/120vac-to-5vdc/27864>\
**Category:** Arduino\
**Created:** [November 28, 2013, 4:26pm UTC](https://community.sparkfun.com/t/120vac-to-5vdc/27864 "2013-11-28T16:26:02Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![TechnoWiz2Cubed](https://avatars.discourse-cdn.com/v4/letter/t/6bbea6/32.png) [@TechnoWiz2Cubed](https://community.sparkfun.com/u/TechnoWiz2Cubed)\
**Post date:** [November 28, 2013, 4:26pm UTC](https://community.sparkfun.com/t/120vac-to-5vdc/27864/1 "2013-11-28T16:26:02Z")

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How would I go about converting 120VAC to 5VDC? I would like to include it on a custom PCB, so it has to be some kind of component/circuit. Thanks! 🙂

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**Author:** ![n1ist](https://avatars.discourse-cdn.com/v4/letter/n/5daacb/32.png) [@n1ist](https://community.sparkfun.com/u/n1ist)\
**Post date:** [November 29, 2013, 4:04pm UTC](https://community.sparkfun.com/t/120vac-to-5vdc/27864/2 "2013-11-29T16:04:01Z")

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What current? Easiest would be a power supply module; alternatively you could build your own with a transformer, rectifier, and regulator. Just remember the safety issues with the high voltage side. You may want to look into using 5VDC output wallwart instead and keep the high voltage off your board.

/mike

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**Author:** ![Mee\_n\_Mac](https://avatars.discourse-cdn.com/v4/letter/m/aeb1de/32.png) [@Mee\_n\_Mac](https://community.sparkfun.com/u/Mee_n_Mac)\
**Post date:** [November 29, 2013, 4:07pm UTC](https://community.sparkfun.com/t/120vac-to-5vdc/27864/3 "2013-11-29T16:07:07Z")

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[http://en.wikipedia.org/wiki/Rectifier](http://en.wikipedia.org/wiki/Rectifier)

What’s the intended usage ?

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**Author:** ![waltr](https://avatars.discourse-cdn.com/v4/letter/w/898d66/32.png) [@waltr](https://community.sparkfun.com/u/waltr)\
**Post date:** [November 29, 2013, 6:59pm UTC](https://community.sparkfun.com/t/120vac-to-5vdc/27864/4 "2013-11-29T18:59:08Z")

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Also discussed here:

[http://forums.adafruit.com/viewtopic.php?f=25&t=46469](http://forums.adafruit.com/viewtopic.php?f=25&t=46469)
