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Your cart is empty.4.5 out of 5 stars
- #55,327 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
- #28 in Lab Power Supplies
- #59 in Life Science Supplies
Product Description
Key Features
Over-Current and Voltage Protection
Built-in over-current and voltage protection settings. The KA-Series also features a dedicated output on/off button and precise rotary encoder for dialing in the exact settings for your project.
Four Memory Locations
Four dedicated memory locations to store your favorite current and voltage settings. Allowing you to easily jump between desired test settings. If you're worried about accidental button pressing, panel can also be locked.
Bright 4-Digit LED Display
Precise readout that is legible from any angle on your workbench. The four digit LED display tells you exactly what the unit is outputting and what settings are currently active on the front panel.
Switchable Voltage & Smart Fan
The unit voltage is easily switchable from 110V to 220V on the rear panel. This is also the location of the fan air vent that kicks on based on internal temperature of the unit.
About the Manufacturer
KORAD TECHNOLOGY CO., LTD is a professional and new-style science and technology enterprise based on developing digital control & programmable DC power supplies, digital control & programmable DC electronic load, high-power power supplies, and switching mode power supplies, which are the main products of KORAD.And KORAD have been specializing in the research of the power supply industry and the engineers have very rich experience in power supplies.
Korad KA3005D Power Supply
Popular Applications
- Automatic Testing in the Production Line
- School Laboratory
- Repairing
- Research & Development
- Quality Control
- Aging Test
- Complete digital control with memory storage
- 4-digit display
- Intelligent temperature-controlled fan
- Compact design
- 10 mV /1 mA resolution
- Low noise and ripple
VB
Reviewed in the United States on January 24, 2025
This thing feels like I salvaged it from a Soviet Missile Bunker, but in the best possible way. Much nicer than the cheap version out there, very satisfying fit and finish. Interface is a tiny bit clunky but not terrible, and the memory functions are nice. I wish it came with more variety in the leads but it uses standard connectors so it's easy enough to make or buy more.
SuperNova
Reviewed in the United States on August 28, 2024
Very easy to use, accurate and reliable. If you look at forums this model comes highly recommended; such a high value product at this price point. Being a linear power supply it's a little wasteful, but I haven't noticed an excessive amount of heat, and while I haven't observed it myself, the waveform is said to have low ripple. If I needed another supply I would buy another without hesitation.
Tonycstech
Reviewed in the United States on July 1, 2024
Noisy output but at the very least its consistent across all voltages.only 4 memory banks, not enough.Only 5 amps. Not enough.10A model is overpriced. it should not cost double having exact same thing except bigger transformer.It does not even have PC interface like cheaper counterpart products.Honestly not sure why it cost this much. Maybe brand cost more than a product its self.
Dominik
Reviewed in the United Arab Emirates on June 22, 2024
This device is just perfect if you are an older guy who went through his fair share of wrestling with those old trafo-based, fidgety, no finley-adjusted PSU's, energized outputs, available at the market 10 or 20 years ago.Pros:- stable output even under max loads- no overshooting or any weird spikes- capable of adjustments on non-energized output- digital interface capable of fine adjustments- clear to read and functional with memory optionsCons:- ...If you are in need of a good bench PSU just buy it. I already have two of them, seriously considering buying a third one...
John
Reviewed in Canada on June 11, 2024
Power supply works as advertised. Been using it for voltage injection without any issues. It's great that it has overvoltage protection and overcurrent protection. There lots of different power supply manufacturers out there to choose from but from my research, this one had great reviews from multiple sources for this price range. Digikey also sells this model which means the power supply should be decent as Digikey usually does not sell inferior products. I've been using it for several months already and have not had any issues so far.
dnoyeB
Reviewed in the United States on May 6, 2024
According to Amazon I purchased this 10 years ago. I'm surprised they are still selling the same model. It's worked well for me. The current limit works as well as the voltage limit. The current limit can be adjusted in 1mA steps. The voltage limit can be adjusted in 10mV steps. I haven't noticed any appreciable spikes on activation of the output. The jog knob works well. The connections are solid. The on/off button is solid. The rubbery push buttons feel good enough. Once you get used to how the controls work it's relatively fast to adjust. I'm not seeing much noise either. It's actually quieter than any of my USB batteries that all seem to spit out some noise in the 450kHz range.
sarah veltman
Reviewed in the United States on March 21, 2024
This is a great Linear PSU and very inexpensive. It's stable and reasonably accurate using a Fluke meter it was around 0.1 volts off at 30 volts. It has no noise or stability issues as I would expect from a well designed linear PSU. The only caveat is, the interface is gimmicky with lots of buttons and memory controls. I have designed commercial power supplies in the past and all it really needs is a voltage and current adjustment potentiometer, with an accurate meter. All the other controls are unnecessary, and a total mess design wise. Apart from that, I would buy a second one as it's excellent value for money, and great for hobby audio project testing.
osidfa
Reviewed in the United States on October 22, 2024
I have a bunch of these and they work absolutely great. One of them has been running 24/7 for probably 2 years now. There are no power spikes if you use the output on/off button, the only way to get a small spike is to cut the mains power while the output is enabled but you're not supposed to do that anyway. I very much prefer these over switch-mode supplies because the output is extremely clean. The voltage and current settings and display are very accurate. I use these all the time and I bought my first one 4 years ago; I have both KA3005D and KA3005P (programmable) models and I've used to software to script one of them for automated testing. I did have an issue at one point where I needed customer support and both Korad and the seller (SRA) have been absolutely great with their support which is really important to me and I would say they went above and beyond. I had originally considered buying a "fancy" bench-top dual supply but decided that for the same money I can get 3 of these and that turned out to be a very good decision. My priority is to never get into a situation where I needed another power supply and not have one. I have 6 of them permanently as part of my work bench and a few more to move around where needed. If for some reason I needed another one I would buy this one again, no question.
MarkV
Reviewed in the United States on October 15, 2023
There are a lot of cheap junk power supplies on Amazon -- this is not one of them. It's a LINEAR power supply not a switching power supply. The cheap ones are little more than repurposed computer power supplies. The construction quality and controls are like what you'd find on units costing at least twice this amount. The only problem I have with it is there's a voltage spike on the output when you power it on (after it's on the output on/off button is clean though). I would have knocked off a star for that but you'll find much worse in all the cheap switching power supplies, so I leave it at 5 stars for the incredible value. Very glad I bought this unit and I recommend it if you can avoid problems with the power-on spike at the output.
Felipe Lomelín
Reviewed in Mexico on November 28, 2020
Llegó antes de lo esperado, funciona perfectamente,
Adam
Reviewed in Canada on July 4, 2018
Bought it a year ago and it's been working great with no complaints or concerns. Turns on every time and does what I need it to. Controls are quick and convenient and the output toggle is awesome so you're not removing/replacing leads every time you need to adjust the power supply. These seem to be the most noticeable things you lose out on when you buy a cheaper bench supply, but aren't a concern here.When I was researching the purchase I was concerned by how many people seemed to be complaining about fan noise... I used it for a weeks-long stint as a power supply for a ham radio and the fan is probably the most inoffensive noise I can imagine. The only part of calling it "a little loud" that's accurate is the "little" part.For the hobbyist or prosumer, I think this is exactly the right price point to balance quality/features and cost. Don't go any cheaper. If you're feeling rich, grab a used HP/Keysight unit for about twice the price.
Angel Perez Davila
Reviewed in Mexico on November 30, 2018
Me gusto mucho el envío llego antes de lo previsto y del artículo es una fuente de alimentación profesional y muy precisa
Centers
Reviewed in the United States on July 27, 2014
I'm just using this for hobby purposes at home but it works great. I've used some high grade power supplies so when I say this is a nice supply I have some experience. Now this is a low cost supply and I was concerned it might be a waste of money. So I connected a Tektronix scope to evaluate the output voltage. This is a linear power supply so the output voltage was very clean. I also checked for spikes when the output was switched on and off with and without a load and no spikes were seen. The current control and voltage control worked very well. The ability to connect this to your test circuit, setup the voltage and current and then turn the supply output on is a feature not even found on some high end supplies.The only issue I had was the power cord connection on this supply seemed a little lose to me.I would recommend this to the electrical/electronic hobbyist.
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