KORAD KA3005P-23 - Page 1
Forum section: electronics / testgear

author: bug13
author_rank: Regular Contributor
timestamp: May 05, 2025, 09:50:34 pm
content: Hi guysI need to buy a budget power supply. Korad ka3005p seem to be the recommended one. It looks like they have a 2023 version. Are they still good? Thanks guyshttps://www.amazon.com/dp/B0DT3XRZLD/?th=1

author: DaneLaw
author_rank: Frequent Contributor
timestamp: May 05, 2025, 10:14:19 pm
content: Quote from: bug13 on May 05, 2025, 09:50:34 pmLikely depends on what a 2023 version is..??

author: infino
author_rank: Contributor
timestamp: May 05, 2025, 10:48:38 pm
content: Quote from: bug13 on May 05, 2025, 09:50:34 pmIt’s difficult to specify what modifications they have made to their hardware, but for the price point, Korad has consistently been a solid choice. The only notable drawback was the noisy fan, which lacked temperature-based control, and a fault in my particular unit — an uncontrolled 18V output caused by a failed IC, either a shift register or a decoder (I don’t recall exactly which one).If you have the capability and interest, Korad is a good platform for modification. It’s possible to integrate a graphical display, implement proper fan control, and add LAN-based remote control — all of these upgrades are well-documented and easy to find online.

author: SHF
author_rank: Regular Contributor
timestamp: May 06, 2025, 10:06:46 am
content: the successor KA3005DS is significantly better!https://www.reichelt.de/de/de/shop/produkt/labornetzgeraet_0_-_30_v_0_-_5_a_stabilisiert-372980https://botland.store/laboratory-power-supply/23190-laboratory-power-supply-korad-ka3005ds-0-30v-5a-5904422384326.html

author: bingo600
author_rank: Super Contributor
timestamp: May 06, 2025, 10:23:42 am
content: I have the PS (Think S means silent ... As in fan noise)https://eleshop.eu/korad-ka3005ps.htmlNice for the price.

author: SHF
author_rank: Regular Contributor
timestamp: May 06, 2025, 11:08:21 am
content: alternatively KKG305Dhttps://botland.store/laboratory-power-supply/21313-laboratory-power-supply-korad-kkg305d-0-30v-0-5a-5904422386566.html

author: DaneLaw
author_rank: Frequent Contributor
timestamp: May 06, 2025, 02:37:43 pm
content: Quote from: SHF on May 06, 2025, 11:08:21 amQuote from: SHF on May 06, 2025, 10:06:46 amWhen you claim something is significantly better, then it is usually goes hand in hand to also explain "why" you believe that..None of all these links you're showing, looks better or relevant, as OP seems to highlight a P-model both in his thread title, post & what he links to..That would indicate PC connection and all your links centers on models without as in D-versions.So it would likely be other models like KA3005PE or KA3005PS that add an interface, as highlighted with the "P" in the model naming.IF you have purchased one yourself, and you also had some of the other models and tried those personally, so you able to compare..then pls share.. KOrad themself highlight the third wattage-display as the biggest gain.

author: tatel
author_rank: Frequent Contributor
timestamp: May 06, 2025, 03:05:44 pm
content: Quote from: bug13 on May 05, 2025, 09:50:34 pmWell, I have 3005P and, while I am on the look for a better, triple power supply, I am not in a hurry. So far it has served me well. If you don't need it to be remotelly programable/controlable, you could look for a "D" model and save a few bucks.To me, what matters, almost at any price, is that it should have at least overvoltage and overcurrent protection (OVP/OCP), and to be linear because then, ripple and noise is usually low. Korad is linear, ripple/noise are usually in the single digit milivolt range, which is better than any switching power supply, where ripple and noise is quite a bit higher, and Korad does have OVP and OCP. On a budget.Anything else would be a bonus, but not the main reason to purchase it (in my case).You should look for the specs and decide by yourself anyway.Alternatively you could look for, say, an used HP/Agilent or Lambda or TTI power supply, you could find one on the cheap having 4-10X less ripple and noise, but you should make sure they also have OVP/OCP, unless you decide that's not what matters the most to you.Good luck

author: bug13
author_rank: Regular Contributor
timestamp: May 06, 2025, 09:24:30 pm
content: Quote from: bingo600 on May 06, 2025, 10:23:42 amI do like my ps to be quite, I will see if I can find one locally. Thanks for the suggestion.