12 VDC 3A AC Power Adapter with 2.1 x 5.5mm Plug

Brand:| Model: PS-SP11111
12V 3A DC power supply with over-current, over-voltage, and short-circuit protection.
  • High quality DC power supply
  • Convenient plastic case with attached lead
  • Comprehensive circuit protection
  • Perfect for use with Class T amplifiers with less than 36W of output
Part # 
Weight: 0.45 lbs.  
List Price$29.95
You Save48%
Your Price
Buy 4-up$14.75
Part # 320-312
Qty:  EA
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Product Details

12 VDC 3A AC Power Adapter with 2.1 x 5.5mm Plug

12V 3A DC power supply with over-current, over-voltage, and short-circuit protection. Designed for use with the 2 x 3 watt, 2 x 8 watt, and 2 x 15 watt Class-D amplifier boards. Includes 6 ft. IEC power cord. Dimensions: 100 mm (L) x 50.40 mm (W) x 30.90 mm (H). 2.1 x 5.5 mm tip.

Product Specifications
  • DC Output Voltage12V
  • Current Capacity3000 mA
  • Center/Tip PolarityCenter (+)
  • Plug Size2.1 x 5.5 mm
  • Input Voltage100~240 VAC
12 VDC 3A AC Power Adapter with 2.1 x 5.5mm Plug
  • BrandParts Express
  • ModelPS-SP11111
  • Part Number320-312
  • UPC844632088148
  • Product CategoryAC/DC Power Adapters
  • Unit of MeasureEA
  • Product Rating
    (5 Reviews)
  • Weight0.45 lbs.
  • California Prop 65

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

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12 VDC 3A AC Power Adapter with 2.1 x 5.5mm Plug
12 VDC 3A AC Power Adapter with 2.1 x 5.5mm Plug is rated 5.0 out of 5 by 5.
Rated 5 out of 5 by from Cant beat itOne of the best purchases you can make at PE. unlike some of the other boat anchors, this is compact and relatively light.
Date published: 2015-04-23
Rated 5 out of 5 by from 12vdc power adapter 3aI'm using this to power up a home built led lighting project. It does the job very nicely. I built an led light array with micro switches to give lighting for lower kitchen cabinets. Lights come on when the doors are opened. All doors can be opened turning all 66 led bulbs. It powers them all just fine.
Date published: 2014-10-26
Rated 5 out of 5 by from Good pruchaseGreat replacement for many different components. 5/5.
Date published: 2014-07-25
Rated 5 out of 5 by from Parts Express Cannot Be OutdoneAs usual, when I need a component I turn to Parts Express and they never let me down. They always have the items that a serious tech buyer requires. This case is no different. I needed a solid 12V @ 3ADC supply, and yes! there is was at Parts Express. The product fits my needs perfectly and the shipping is always fast!
Date published: 2013-02-27
Rated 5 out of 5 by from Works great with small amplifiers and LEDsI've used this power supply many times for many different projects. Would highly recommend to anyone needing a 12V power supply.
Date published: 2012-04-11
  • 2015-05-28T06:35CST
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Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
12 VDC 3A AC Power Adapter with 2.1 x 5.5mm Plug

I have an RCA DECK215R 22 inch TV with power supply Model CP1240. input:100 -240VAC, 50/60Hz 1.8A. Output: 12V 4A. Will this power supply work for my TV?

Asked by: kjcamara
Unfortunately no. If the power supply you need is 4A, you will want to replace it with something that is 4A or higher, as long as it is a regulated power supply. Something like below will work but we cannot guarantee the plug size is correct.http://www.parts-express.com/12-vdc-5a-switching-power-supply-with-25-x-55mm-plug--120-056
Answered by: MattP
Date published: 2015-04-05

Will this power cord work with Lepai LP- 269FS 4x45W mini amp?

Asked by: Zoey
Answered by: TomI
Date published: 2015-04-05

will this fit on all lepai amplifiers?

Asked by: jo marble
Yes for most of the Lepai amps the parts express carry. (2.1mm connection.) The large class D LP7498E uses the 2.5mm plug.
Answered by: TomI
Date published: 2015-04-05

Is this power supply regulated? Is that what over-current and over- voltage protection mean? I need a 12v DC 2.5A supply capable of handling 20W with a 2.1mm adapter barrel. Would this one work?

Asked by: landerson
This is indeed a regulated supply. That just means that this maintains 12 volts no matter what the current draw is. That is what the over voltage protection is. The over current will shut down the unit if too many amps start to flow in case of a short or something of that nature.This sounds like it will work well with your stated application.
Answered by: Chrisf
Date published: 2015-04-05

I just purchased the SURE 2x15W @ 4 Ohm TA2024 Class-D Audio Amplifier Board. Will this be compatible with it? A friend recommended a vudu power supply but I am not sure which model or how to get one as alternative. 

Asked by: MindfulMoz
Yes this power supply will work well with that amplifier.
Answered by: MattP
Date published: 2015-04-05

I need a new power supply for my Acoustic Authority 5.1 A5640 5.1 Speaker System. I'm looking at Part Express PS-SP11111. The input of Acoustic Authority power supply is 120VAC, 60hZ, 65w and output is 15VDC 2450mA. Will it work?

Asked by: MikeinKannapolis
Unfortunately no, you will need a power supply that has 15V output with 2450 mA capacity or higher. The only 15V power supply we have is for a Peavey product and only offers 1000 mA output.
Answered by: MattP
Date published: 2015-04-05
  • 2015-05-28T09:13CST
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