Product: Siglent SPD3303X-E Programmable DC Power Supply
Use: for work lab setup at my house (work from home)
Purchased: July 2022 (2-3 months of usage at the time of this review)
Background/Usage: I am an engineer with 30+ years of post graduate experience with a focus of 25+ years in the design and development of medical imaging equipment. This is the 3rd piece of Siglent equipment I own, along with the Siglent SDG6022X Arbitrary Waveform Generator and the Siglent SDS2204X Plus Digital Storage Oscilloscope (many additional options purchased).
My overall impression is that I like this power supply. I have been exposed to and used many other manufacture equipment from many of the top brands. Since I purchased this using my "dime", I tend to balance form, function, quality, price and several other factors.
Value: I could have spent a lot less and gotten a lot less features and quality. For me, quality was a heavier factor that you just are not going to get with those sub $100 supplies.
Quality: The build quality is very good. A bit noisier than what I personally like, however, not as noisy as some very expensive and most cheap counter parts. With this being in a lab bench setup with several other pieces of equipment, noise is noise. Screen display is sufficient for what is needed, showing what one needs to see. Buttons and knobs are more than sufficient, decent quality. My one "ding" (CON) is the banana plugs feel a bit cheaper than everything else on this piece of equipment and are non-standard size for a BNC dual banana plug adapter. This is a big oversight on Siglent's part and a common point of complaint. I overlook this and can easily work around it.
Features: For the value, this is feature rich. I know the specs say this is 3 output, and technically it is... however, only 2 are IMHO independently controlled, those being the 32 volt @ 3.2 amp outputs. The 3rd one is a selectable 2.5/3.3/5.0 volts @ 3.2 amp output. So yes, technically 3. I do like and use the 3.3 volt or 5.0 volt output for small prototype boards. Adding a 12.0 volt selection would have been a win IMHO... but so be it. The 2 independent programmable outputs can be put into series for up to a 60 volt @ 6.4 amp max output. Something I won't need but nice. I utilize the minimum resolution of 1 mV and 1 mA setting ability. Although many may not need this fine resolution, it is very necessary in my line of work dealing with very small signals.
I am happy with this supply and would recommend it.
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This item: Siglent Technologies SPD3303X-E Triple Output Power Supply
$399.51
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From the brand
SIGLENT TECHNOLOGIES
Every Bench. Every Engineer. Every Day.
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SIGLENT TECHNOLOGIES is a global leader in research & development, engineering, manufacturing, sales, and service support for electronic test and measurement equipment that combines innovative features and functionality with a strong commitment to quality and performance. SIGLENT is ISO 9001:2015 and ISO 14001:2015 Certified for its product quality and environmental management programs.
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Compare with similar items
This Item  Siglent Technologies SPD3303X-E Triple Output Power Supply | Recommendations  |  |  |  |  | |
| Price | $399.51 | $473.00 | $554.45 | $325.95 | $199.95 | $139.75 |
| Delivery | Get it as soon as Sunday, Oct 6 | Get it as soon as Tuesday, Oct 8 | — | — | Get it as soon as Sunday, Oct 6 | Get it as soon as Monday, Oct 7 |
| Customer Ratings | ||||||
| Sold By | Amazon.com | Tequipment | Tequipment | Electronix Express | Electronnix | XTronicUSA |
| power supply design | — | External | Internal | Internal | — | Internal |
| connector type | usb | usb | usb | usb | — | usb |
| form factor | Tower | Benchtop | — | Benchtop or Rackmount | — | Benchtop/Desktop |
| cooling method | Air | Convection or Fan-Based | — | Air | Air | Air |
| max input voltage | 230 volts | 230 volts of alternating current | 230 volts | 220 volts | — | 220 volts |
| min input voltage | 100 volts | 0 volts | 100 volts | — | 110 volts | 220 volts |
| fan count | 1 | — | 0 | 1 | 1 | 1 |
| wattage | 220 watts | 195 watts | 330 watts | 220 watts | 300 watts | — |
| output wattage | — | 195 watts | 220 watts | — | 300 watts | 160 watts |
| current rating | — | — | 3.2 amps | 3.2 milliamps | — | 5.1 milliamps |
| model name | SPD3303X-E | DP832 | SPD3303X | SPD3303C | FBA TP-3005D-3 | — |
From the manufacturer
Siglent’s SPD3303X/X-E Series Programmable Linear DC Power Supply
The ‘3000X family has three isolated outputs; two adjustable channels and one selectable channel from 2.5 V, 3.3 V, and 5 V. It also has output short and overload protection and can be used in production and development.
Key Features
- 3 independently controlled and isolated outputs: Two 32 V/3.2 A, one 2.5 V / 3.3 V / 5 V / 3.2 A × 1, total 220 W
- Timing function provides programmed output steps
- 3 types of output modes: independent, series (60 V max), and parallel (6.4 A max)
- Free PC software:Easypower. Also supports remote programming and includes a LabView driver
- Intelligent temperature-controlled fan effectively reduces fan noise
- Clear graphical interface, with waveform display function
- Five internal groups of system parameter save/recall, supports data storage space expansion
- 5 digit Voltage/4 digit Current Display, Minimum Resolution: 1 mV/1 mA (SPD3303X)
Key Performance Specifications
- 100 V / 120 V/ 220 V / 230 V Compatible Design
- 4.3 Inch True Color TFT- LCD 480 x 272 Display
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Series/parallel/independent mode functionSeries and parallel function allows two channels combined into one output with more power output capability, extending the application range. Each of 3 channels power can be turned on or off independently and also can be turned all on or all off. |
Panel displays the timing outputThrough front panel operation, five groups of timing settings and output control can be displayed, which provides users with simple power programming functionality. Also, by connection to Siglent’s EasyPower PC software, a full range of communication and control features can be used. |
Save/Recall setting parametersThe SPD3000X/X-E series programmable power supply can save or recall 5 groups of setting parameters in internal storage and also supports external storage expansion. Settings can be easily recalled if needed. |
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| SPD3303X | SPD3303X-E | |
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| Display | 4.3" color TFT-LCD 5 digit voltage display 4 digit current display | 4.3" color TFT-LCD 4 digit voltage display 3 digit current display |
| Channel Output | CH1:0 ～ 32 V,0 ～ 3.2 A CH2:0 ～ 32 V,0 ～ 3.2 A CH3:2.5/3.3/5.0 V,3.2 A | CH1:0 ～ 32 V,0 ～ 3.2 A CH2:0 ～ 32 V,0 ～ 3.2 A CH3:2.5/3.3/5.0 V,3.2 A |
| Resolution | 1 mV, 1 mA | 10 mV, 10 mA |
| Setting Accuracy | Voltage±(0.03 % of reading+10 mV) Current±(0. 3 % of reading+10 mA) | Voltage±(0.03 % of reading+10 mV) Current±(0. 3 % of reading+10 mA) |
| Readback Accuracy | Voltage±(0.03 % of reading+10 mV) Current±(0.3 % of reading+10 mA) | Voltage: ± (0.5 % of reading + 2 digits) Current: ± (0.5 % of reading + 2 digits) |
| Constant Voltage Mode | Line Regulation:≤0.01 %+3 mV,Load Regulation:≤0.01 %+3 mV,Ripple&Noise:≤1 mVrms（5 Hz ～ 1 MHz）,Recovery Time:＜ 50 μs（50 % load change， minimum load 0.5 A） | Line Regulation:≤0.01 %+3 mV,Load Regulation:≤0.01 %+3 mV,Ripple&Noise:≤1 mVrms（5 Hz ～ 1 MHz）,Recovery Time:＜ 50 μs（50 % load change， minimum load 0.5 A） |
| Constant Current Mode | Line Regulation:≤0.2 %+3 mA,Load Regulation:≤0.2 %+3 mA,Ripple&Noise:≤3 mArms | Line Regulation:≤0.2 %+3 mA,Load Regulation:≤0.2 %+3 mA,Ripple&Noise:≤3 mArms |
| Parallel Mode | Line Regulation:≤0.01 %+3 mV,Load Regulation:≤0.01 %+3 mV | Line Regulation:≤0.01 %+3 mV,Load Regulation:≤0.01 %+3 mV |
| Series Mode | Line Regulation:≤0.01 %+5 mV,Load Regulation:≤300 mV | Line Regulation:≤0.01 %+5 mV,Load Regulation:≤300 mV |
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Unboxing and my review on the SPD3303X-E
Meloni ⭐ ⭐ ⭐ ⭐ ⭐
Very nice. Could be better.
Pros:The voltage and current capabilities are well thought out, the main V/A/W display is clear and easily understood, the serial and parallel capabilities are great, and the network interface is both well documented and comprehensive as compared to the front panel controls. The "lock" function is great. It can save up to five "scenes" in memory that let you keep common setups handy. These are all good reasons to buy something like this, so the pros here, while shorter than the cons section below, are really what to focus on if you need a good dual power supply. Dual? Yep. This is really a dual channel programmable power supply. That third channel... well, see the cons below.Cons:1) A Windows OS-based computer is required to upgrade the firmware. Should have been a slot where you could pop a memory card in it to make it platform independent, and given the price of the unit, I can't see that they had any decent excuse not to do it. Many people don't run Windows, and for very good reasons. Furthermore, the device has a network interface, and could upgrade itself over the network if it was simply designed to do so. A $20 IOT lightbulb can do this. There's no legitimate excuse for a $400 lab instrument to lack the ability.2) There's no control over display brightness. There should be. It's VERY bright.3) The graphing is extremely minimal; you'd be better off utilizing the network interface and tracking the state of the supply yourself. This will allow you to gather statistics, catch rare events, etc.4) There's no built-in event catching/triggering: you could leave a device on there, not be in the room when something happens, and come back to no hint of, and no details on, the event if it has scrolled off the (very minimal and short-time) graph display. There should be settable alarm / catch parameters to flag/record events. Again, given the price of the unit, there's no good excuse not to have this.5) The third supply is handy as far as it goes, but it's not much better than a wall wart. There's no current tracking, current limit control, or display of any kind for the third channel other than an off/on/overload LED.6) As other have mentioned, the images in this listing are misleading: the unit sold here, the SPD3303X-E, offers two decimal digits of precision, not three. I doubt very much that this will make any practical difference for the vast majority of users.---So. I like the unit. A dual channel programmable power supply is an extremely useful tool to have on the bench if you're doing engineering or are a maker type of person. I'm okay with the price, but would have liked some more features. Some of what is missing I will create by utilizing the network interface, but not every hardware person is a programmer, so just because I can do it doesn't mean some other person can do it. So for me, it's really been a very good purchase. For someone else, the caveats implicit in the "cons" section above may be significant. If they aren't, then I definitely recommend the unit.
Top reviews from the United States
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Top reviews from other countries
Fernando Gutierrez
Buena fuente de poder
Reviewed in Mexico on May 11, 2022Style: Power SupplyVerified Purchase
Fernando Gutierrez
Reviewed in Mexico on May 11, 2022
Ya venía con el firmware mas reciente y el selector de voltaje/fusible configurados para mi país.
Me gusta que tiene un puerto ethernet y se puede controlar remotamente. Así pude generar gráficas en la computadora.
Images in this review
Client d'Amazon
Très bien pour un amateur averti
Reviewed in France on July 25, 2024Style: Power SupplyVerified Purchase
Client d'Amazon
Reviewed in France on July 25, 2024
La seule remarque que je peux faire, c'est que le canal 2 est plus près de la tension voulue.
Images in this review
Vito SIMONE VENEZIANI
Ottimo prodotto.
Reviewed in Italy on August 21, 2023Style: Power SupplyVerified Purchase
Adam
Excellent relatively small 3 channel programmable DC bench linear power supply
Reviewed in Germany on January 5, 2023Style: Power SupplyVerified Purchase
Adam
Reviewed in Germany on January 5, 2023
Images in this review
Andrés
Funciona muy bien.
Reviewed in Spain on February 25, 2022Style: Power SupplyVerified Purchase
