3 VDC 500mA AC Adapter

Universal AC adapter input voltage 120 VAC, output voltage is 3 VDC with 500 mA current capacity. Requires purchase of plug tip for operation (sold separately) -- simply choose size/style for your application.
  • Input voltage: 120 VAC
  • Output voltage: 3 VDC @ 500 mA
  • Requires purchase of plug tip for operation (sold separately)
  • 6 ft. cord length
  • UL approved
Part # 
Weight: 0.65 lbs.  
Your Price
Buy 10-up$5.50
Part # 120-010
Qty:  EA
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Product Details

3 VDC 500mA AC Adapter

This universal adapter allows the user to choose the plug size/style for their particular application. Voltage polarity can be easily changed by reversing the plug. Adapter has an input voltage of 120 VAC, 6 ft. cord length and is UL approved. output voltage is 3 VDC with 500 mA current capacity. Requires purchase of plug tip for operation (sold separately) -- simply choose size/style for your application.

Product Specifications
  • DC Output Voltage3V
  • Current Capacity500 mA
  • Center/Tip PolarityReversible
  • Plug SizeNo Tip
  • Input Voltage110~120 VAC
3 VDC 500mA AC Adapter
  • BrandParts Express
  • Part Number120-010
  • UPC844632025655
  • Product CategoryAC/DC Power Adapters
  • Unit of MeasureEA
  • Product Rating
    (4 Reviews)
  • Weight0.65 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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3 VDC 500mA AC Adapter
3 VDC 500mA AC Adapter is rated 3.0 out of 5 by 4.
Rated 2 out of 5 by from poor voltage regulationI got sloppy & assumed voltage output would be somewhere in the vicinity to stated value of 3 volts; I didn't measure it- till it burned out the miniature Christmas light bulb I'd wired up to it. These bulbs normally handle 2.5-3.5 volts, so I wasn't too concerned about level of control. But, it was actually putting out in excess of 5.5 volts. This is way poor. I'd spent quite a bit of time modifying a Christmas decoration to add lighting to it & the bulb won't be easy to replace. Now I still don't have an acceptable power supply.
Date published: 2013-01-02
Rated 3 out of 5 by from I thought it was a regulated voltageThe other poster is correct, it's output is not 3 volts. Without any load it outputs around 6 volts. Maybe it outputs 3 volts at 500ma but I would have thought this would be a general, i.e. regulated, power supply.
Date published: 2009-08-31
Rated 2 out of 5 by from Had high hopes but....I needed this charger as a battery replacement. Given that it's advertised as 3 volts, it seemed perfect to replace a couple AA batteries. I ordered two of the chargers and upon arrival threw them on my voltmeter to verify their performance. One was 6.1 volts, the other 5.8 volts. Pretty much double the represented voltage. Now I need to either wire up some resistors or keep looking...ugh.
Date published: 2009-01-12
Rated 5 out of 5 by from Parts you can count on!I have bought several of these adapters and they really do a super Job. It has reduce my expensive battery load .we all know how much batteries cost and It helps reduce the effects on the enviroment. I am delighted to have found these adapters I had to goggle to find this website and I rally love there products
Date published: 2008-09-07

Product Q&A

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3 VDC 500mA AC Adapter

will this work with a cassette player pocket size and what else do I need to buy?

Asked by: eveie
This requires a bit more information in order to proceed. Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2014-08-27

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