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KD3005D - Precision Variable Adjustable 30V, 5A DC Linear Power Supply Digital Regulated Lab Grade…

4.4 4.4 out of 5 stars 554 ratings
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KD Series - 5 Amp

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Model Name KD3005D
Brand KORAD
Wattage 150.00
Item Dimensions LxWxH 14 x 10 x 10 inches
Item Weight 9 Pounds

About this item

  • Compact Design with Dual 4 Digit LED Displays and Digital Controls - Switchable power input 110/220v
  • Circuit protection for over load, short circuit and over temperature.
  • Automatic switching between mA and A display
See more product details

Customer ratings by feature

Value for money
4.7 4.7
Accuracy
4.1 4.1
Easy to read
4.1 4.1
Easy to use
4.1 4.1

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Product Description

Korad KD3005D Benchtop Power Supply

The KD-Series of benchtop power supplies from Korad Technology is packed with features at a cost that can't be beat! This heavy duty signal-channel linear power supply features a bright and easy to read 4-digit LED screen to display the voltage and current values. As well as a panel lock feature to help prevent unwanted changes. The constant voltage and current settings are delivered with low ripple and noise, high reliability and high accuracy. Perfect for use in labs, colleges, and production environments where continuously adjustable. Forget lower cost 3-digit power supplies with poor accuracy and start working smarter with Korad.

KD3005D Over-Current Protection

KD3005D Lock Feature

Korad LED 4-Digit Display

Korad switchable voltage with fan

Over-Current Protection

Built-in over-current protection function. The KD-Series also features precise rotary encoders for dialing in the exact voltage and current settings for your project.

Control Panel Lock

The control panel can be easily locked to prevent unwanted changes by pushing and holding the voltage knob until the "LOCK" LED lights on the display.

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 & Programmable

The unit voltage is easily switchable from 110V to 220V on the rear panel. There are also USB and RS232 connections for programmable control via PC computer software.

KD3005D Benchtop Power Supply

KD3005D Benchtop Power Supply

Korad Logo
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 KD3005D Power Supply

Popular Applications

  • Automatic Testing in the Production Line
  • School Laboratory
  • Repairing
  • Research & Development
  • Quality Control
  • Aging Test

  • 4-digit display
  • Intelligent temperature-controlled fan
  • Compact design
  • 10 mV /1 mA resolution
  • Low noise and ripple
Voltage Range 0-30V
Current Range 0-5A
Load Regulation Voltage: ≤0.01%+2mV Current: ≤0.1%+10mA
Line Regulation Voltage: ≤0.01%+3mV Current: ≤0.1%+3mA
Setup Resolution Voltage: 10mV Current: 1mA
Setup Accuracy (25°C ± 5°C) Voltage: ≤0.5%+20mV Current: ≤0.5%+10mA
Ripple (20-20M) Voltage: ≤2mVrms Current: ≤3mVrms
Temperature Coefficient Voltage: ≤150ppm Current: ≤150ppm
Read Back Resolution Voltage: 10mV Current: 1mA
Read Back Temp. Coefficient Voltage: ≤150ppm Current: ≤150ppm
Reaction Time Voltage Rise: ≤100mS Voltage Drop: ≤100mS
Interface Non-Programmable
Weight 9.52 Lbs / 4.32 Kg
Dimensions 100mm (W) x 156mm (H) x 260mm (D)
KD-Series Power Supply KD-Series Power Supply KA3005D KA3005P
KD3005D KD3005P KA3005D KA3005P
Customer Reviews
4.4 out of 5 stars
554
4.4 out of 5 stars
554
4.5 out of 5 stars
183
4.4 out of 5 stars
554
Max Voltage 30V 30V 30V 30V
Max Current 5A 5A 5A 5A
Output On/Off Button
Memory Storage
Computer Interface Control

Product information

Technical Details

Additional Information

Warranty & Support

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Product Warranty: For warranty information about this product, please click here

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KORAD KD3005D - Precision Variable Adjustable 30V, 5A DC Linear Power Supply Digital Regulated Lab Grade…


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KORAD KD3005D - Precision Variable Adjustable 30V, 5A DC Linear Power Supply Digital Regulated Lab Grade…
KORAD KD3005D - Precision Variable Adjustable 30V, 5A DC Linear Power Supply Digital Regulated Lab Grade…
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Price-22% $85.00
List:$109.00
-10% $121.49
Typical:$134.99
$79.98$285.00
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Accuracy
4.1
4.1
4.4
5.0
Quality of material
3.7
3.7
4.3
4.1
Value for money
4.7
4.7
4.4
Easy to read
4.1
4.1
4.4
Easy to use
4.1
4.1
3.8
Sold By
SRA Soldering Products
Amazon.com
Electronnix
Amazon.com
min input voltage
110 volts
110 volts
115 volts
output wattage
300 watts
300 watts
150 watts
model name
KD3005D
KA3005P
spd1305x
weight
9 pounds
9 pounds
12 pounds
0.01 ounces

Customer reviews

4.4 out of 5 stars
4.4 out of 5
554 global ratings

Customers say

Customers like the troubleshooting capabilities of the system power device. They say it's a great addition for hobbyists and an amazing tool for any PC tech. They also appreciate the quality, reliability, and value of the product. Customers also mention that the metering is quite accurate. They appreciate the performance, power supply, and ease of use. However, some customers differ on noise.

AI-generated from the text of customer reviews

110 customers mention99 positive11 negative

Customers are satisfied with the performance of the power supply. They mention that it operates well, has clear functionality, and provides decent and accurate power. Some say that the constant current mode works well and is better than other supplies costing twice as much. Overall, most are happy with their purchase and recommend it to others.

"...that require you to hold buttons and input something; all the functionality is clear and you don't have to read the user manual to understand what..." Read more

"...over 200 oz's of silver with this power supply and have not any issues or problems...." Read more

"...Just remember the meters are not accurate to 4 digits but are pretty good (better than 1%)...." Read more

"...The current-limiting feature is very nice.- (+) terminal is adjacent to (-) instead of GND...." Read more

72 customers mention58 positive14 negative

Customers like the quality of the system power device. They mention it's solidly built, reliable, and made of quality parts. The core functionality seems solid, and the output is rock solid with little to no noise. The unit is very stable and accurate, and is well protected against shorts and over temperature conditions. It has an over-current protection with the option of having the output turn off.

"...reviews like this, but I think this trend of inexpensive but high quality equipment (like the Rigol DS1000 series scopes) is really important for..." Read more

"...4. The knobs to adjust the power settings feel good and solid.5. It has a grounding connection which some other supplies do not have.6...." Read more

"...The supply is solidly constructed and well-designed for users with higher current requirements." Read more

"...point in the protection scheme of the unit... while it is well protected against shorts and over temperature conditions, one must be very careful..." Read more

65 customers mention62 positive3 negative

Customers find the value of the tools fantastic, and say it's the best value amps for the money. They appreciate the excellent performance and features. Some say the amps are more than accurate enough for their price. Overall, customers are happy with their purchase and recommend it to others.

"...This power supply really stands out to me as a great bang for the buck for an engineering student on a budget." Read more

"...supplies that are available, but I think this is probably the best value for your buck...." Read more

"...this to anyone who is looking for a good reliable power supply for a low price." Read more

"I'm very happy with this unit; it's a great value for the price...." Read more

50 customers mention40 positive10 negative

Customers like the power supply. They mention it's excellent, well constructed, and accurate. They also say it'll charge custom battery packs and is perfect for electronics lab work. Customers also appreciate the variable voltage, current, and short protection. Overall, customers are happy with their purchase and recommend it to others.

"...The supply has a beefy transformer and a fan. Linear supplies are not very efficient so they throw off a lot of heat...." Read more

"This is probably the best linear supply you can buy at this price point...." Read more

"...When I took a quick look inside this 2020 unit, it still had a beefy transformer and seems to be assembled well, but the main capacitor has been..." Read more

"Decent LINEAR bench power supply. As with any "value priced" Asian brand, PLEASE...open the case and do an inspection...." Read more

47 customers mention41 positive6 negative

Customers like the accuracy of the tool. They say it is easy to use, accurate to millivolts and milliamperes, and precise. Customers also mention that the power supply is accurate to a few millimeters and is definitely accurate enough for home use.

"...The voltage and current displayed on the readout is very accurate. I checked with a multimeter from 10mV to 31V and also at various steps in voltage...." Read more

"...increments.- Output voltage matches my DMM very closely.- Easy to monitor the current drawn by your load to mA precision...." Read more

"...While voltage metering is quite accurate, current readings may be a bit off on some units...." Read more

"...Cons:- The output voltage is very accurate at and above 1V, anything from 0-700mV has a margin of error or at least 10%...." Read more

47 customers mention38 positive9 negative

Customers find the system power device easy to use. They mention the controls are easy to understand, and the device is meant for easy configuration. They say the user interface is nice and easy to operate and understand. They also mention that it comes with a decent instruction manual written in English. Customers also mention the device can be scripted and is good enough for most hobby applications.

"...have been fixed or improved, and everything is high quality and easy to use. I'm very happy with this unit and the price I paid for it...." Read more

"...2. The unit is easy to operate and comes with a decent instruction manual written in English.3...." Read more

"...The controls exceeded my expectations and are very easy to use...." Read more

"Easy to use compact supply for the hobbyist bench...." Read more

24 customers mention24 positive0 negative

Customers are satisfied with the troubleshooting capabilities of the system power device. They mention that it is a great addition for hobbyists, and an amazing tool for PC techs who do board repair. The compact design is good enough for most hobby applications, and it has pretty good features. Overall, customers find the product to be perfect for basic automated lab functionality, and a fantastic tool for the electronics bench.

"...Really happy with how simple and intuitive it is. There are no weird additional functions that require you to hold buttons and input something; all..." Read more

"...I was impressed with the assembly. Good practice was used...." Read more

"...Some features are nice to have, but the hassle of adjusting the voltage and current is excessive...." Read more

"Works well, voltage matches my basic meters, and was a huge help on my bench. I am very happy with it overall for a benchtop PSU...." Read more

36 customers mention15 positive21 negative

Customers are mixed about the noise of the power supply. Some mention that it's quiet at low loads, while others say that it has a noisy fan. Some customers also mention that the noise reminds them of the noisy fans that came with cheap computer power supplies. Overall, the opinions are mixed, and it'd be best to read the reviews carefully before making a purchase.

"...I found the fan noise too much for my personal tastes...." Read more

"...The fan is very quiet and will automatically adjust fan speed depending on the power load...." Read more

"...Under the same testing environment, this Korad has a lot of noise than Instek GPP-4323. Disappoiting...." Read more

"...pleased to find that this unit has a rock solid output with little to no noise detected by my oscilloscope." Read more

High quality, feature-rich supply for a great price
5 Stars
High quality, feature-rich supply for a great price
This power supply has a very impressive amount of functionality and quality for the price. The voltage and current displayed on the readout is very accurate. I checked with a multimeter from 10mV to 31V and also at various steps in voltage. Same for current from 10s of milliamps up to the max.So it's accurate and 30V 5A is more than enough for many projects, no complaints there. In terms of user interface, I think it's fantastic. Really happy with how simple and intuitive it is. There are no weird additional functions that require you to hold buttons and input something; all the functionality is clear and you don't have to read the user manual to understand what the buttons do.The memory functions work very simply; whatever memory setting you have selected, any changes you make are stored there. It's a bit of a bummer that if you change something, you have to change it back instead of being able to just save one setting and revert, but I appreciate the simplicity.The lock, over voltage protection, and over current protection is very easy to use and self explanatory. You need to hold the lock button for a couple of seconds to turn it on and off. With the lock on, the buttons and knob do nothing. Great for making sure you don't fry something by accidentally changing settings.One thing I really like about the user interface is the audio feedback. A lot of people don't like it when their equipment beeps with every button press, but I think it's nice to know that your button press registered, and this power supply does it really well. All of the buttons make a beep, and things like using the lock or turning the unit on produce a different beep. The knob (which is a rotary encoder that is not continuous but has bumps, not sure what you call that) makes a clicking sound when you increment or decrement (is that a word?) a digit, which feels really nice.Inputting a voltage/current is really quick and easy despite there being no keypad. For the price, it's completely acceptable that there's no keypad, and the rotary encoder and left/right buttons work just fine. The audible feedback and clicks in the rotary encoder make it easy to really quickly dial in a value.There is software included as well, and it's pretty good. I'm not completely sure, but it seems like it's just a labview program (though I don't know too much about labview, I am just a lowly undergrad EE student). It does install some national instruments stuff during the installation process. It's very easy to install and use, and you just connect to the power supply with a COM port. You can do anything on the software that you can do with the physical buttons, with some additional functionality. With the software, you can output a sequence of voltages at any time interval. You can also record the voltage and time at any interval and save that data to a text file, which you can import into Matlab or whatever you want to use. It shows graphs of the current and voltage as well. All this stuff is great for plotting I-V curves and seeing how much current your device is using over time. Cool stuff.Since it connects with a COM port, I'm sure you could get it to work with your own Labview programs, matlab stuff, or any other applicable software. I used the USB port (cable is included), but there's also a serial port which is cool.My one complaint with the software is that the buttons for quickly recalling set voltages and currents are filled with some seemingly random values and don't save what you change them to when exiting the program. Weird stuff.The connectors on the front accept banana plugs, or bare wire. They seem like pretty nice connectors and all my banana plugs fit well. The included leads are perfectly functional, although the banana plug portion has a screw and an extra hole, so not sure what's going on there. They feel a bit weird. But who cares, you're probably using your own leads anyways.Overall, there's nothing I can fault with this unit. It seems like all the things I've seen in reviews on youtube have been fixed or improved, and everything is high quality and easy to use. I'm very happy with this unit and the price I paid for it.I normally don't write lengthy reviews like this, but I think this trend of inexpensive but high quality equipment (like the Rigol DS1000 series scopes) is really important for students and beginners like myself. This power supply really stands out to me as a great bang for the buck for an engineering student on a budget.
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Top reviews from the United States

Reviewed in the United States on April 18, 2018
Style: Precision VariableVerified Purchase
Customer image
5.0 out of 5 stars High quality, feature-rich supply for a great price
Reviewed in the United States on April 18, 2018
This power supply has a very impressive amount of functionality and quality for the price. The voltage and current displayed on the readout is very accurate. I checked with a multimeter from 10mV to 31V and also at various steps in voltage. Same for current from 10s of milliamps up to the max.

So it's accurate and 30V 5A is more than enough for many projects, no complaints there. In terms of user interface, I think it's fantastic. Really happy with how simple and intuitive it is. There are no weird additional functions that require you to hold buttons and input something; all the functionality is clear and you don't have to read the user manual to understand what the buttons do.

The memory functions work very simply; whatever memory setting you have selected, any changes you make are stored there. It's a bit of a bummer that if you change something, you have to change it back instead of being able to just save one setting and revert, but I appreciate the simplicity.

The lock, over voltage protection, and over current protection is very easy to use and self explanatory. You need to hold the lock button for a couple of seconds to turn it on and off. With the lock on, the buttons and knob do nothing. Great for making sure you don't fry something by accidentally changing settings.

One thing I really like about the user interface is the audio feedback. A lot of people don't like it when their equipment beeps with every button press, but I think it's nice to know that your button press registered, and this power supply does it really well. All of the buttons make a beep, and things like using the lock or turning the unit on produce a different beep. The knob (which is a rotary encoder that is not continuous but has bumps, not sure what you call that) makes a clicking sound when you increment or decrement (is that a word?) a digit, which feels really nice.

Inputting a voltage/current is really quick and easy despite there being no keypad. For the price, it's completely acceptable that there's no keypad, and the rotary encoder and left/right buttons work just fine. The audible feedback and clicks in the rotary encoder make it easy to really quickly dial in a value.

There is software included as well, and it's pretty good. I'm not completely sure, but it seems like it's just a labview program (though I don't know too much about labview, I am just a lowly undergrad EE student). It does install some national instruments stuff during the installation process. It's very easy to install and use, and you just connect to the power supply with a COM port. You can do anything on the software that you can do with the physical buttons, with some additional functionality. With the software, you can output a sequence of voltages at any time interval. You can also record the voltage and time at any interval and save that data to a text file, which you can import into Matlab or whatever you want to use. It shows graphs of the current and voltage as well. All this stuff is great for plotting I-V curves and seeing how much current your device is using over time. Cool stuff.

Since it connects with a COM port, I'm sure you could get it to work with your own Labview programs, matlab stuff, or any other applicable software. I used the USB port (cable is included), but there's also a serial port which is cool.

My one complaint with the software is that the buttons for quickly recalling set voltages and currents are filled with some seemingly random values and don't save what you change them to when exiting the program. Weird stuff.

The connectors on the front accept banana plugs, or bare wire. They seem like pretty nice connectors and all my banana plugs fit well. The included leads are perfectly functional, although the banana plug portion has a screw and an extra hole, so not sure what's going on there. They feel a bit weird. But who cares, you're probably using your own leads anyways.

Overall, there's nothing I can fault with this unit. It seems like all the things I've seen in reviews on youtube have been fixed or improved, and everything is high quality and easy to use. I'm very happy with this unit and the price I paid for it.

I normally don't write lengthy reviews like this, but I think this trend of inexpensive but high quality equipment (like the Rigol DS1000 series scopes) is really important for students and beginners like myself. This power supply really stands out to me as a great bang for the buck for an engineering student on a budget.
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20 people found this helpful
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Reviewed in the United States on December 1, 2014
Style: KD Series - 5 AmpVerified Purchase
25 people found this helpful
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Top reviews from other countries

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Zachary Iles
5.0 out of 5 stars Buy it, ignore reviews
Reviewed in Canada on December 6, 2023
Style: Precision VariableVerified Purchase
JORGE LLANES
5.0 out of 5 stars Excelente calidad entrega antes de lo programado
Reviewed in Mexico on November 6, 2022
Style: Precision VariableVerified Purchase
VictorM87
5.0 out of 5 stars Buena fuente
Reviewed in Mexico on February 14, 2021
Style: KD Series - 5 AmpVerified Purchase
David
5.0 out of 5 stars A good power supply
Reviewed in the United Kingdom on September 14, 2022
Style: Precision VariableVerified Purchase
NixZiZ
5.0 out of 5 stars Excellent performance for a great price
Reviewed in Canada on June 25, 2019
Style: KD Series - 5 AmpVerified Purchase
10 people found this helpful
Report