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Your cart is empty.Siglent SPD3303X - Programmable Linear DC Power Supply with 1 mV/1 mA Resolution (3 Channels, 220W) Programmable linear DC power supply Three independently controlled and isolated outputs Resolution: 1 mV, 1 mA Display with 5 digit voltage and 4 digit currentSiglent's SPD3000X Series Programmable Linear DC Power Supply has a 4.3' TFT-LCD display, supports Remote Programming and has a Real Time Wave Display. The SPD3000X 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.High-resolution and high-precision outputThe high resolution of 1mV/1mA (SPD3303X), provides excellent setting and read back accuracy. This ensures accurate output even with very with small changes in voltage or current. This is impossible for a low resolution power supply.Series / parallel / independent mode functionSeries and parallel function allows two channels to be 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, 5 groups of timing settings and output control can be displayed, which provides users with a simple power programming function. A connection can also be made with Siglent's EasyPower PC software providing a full range of communication and control features.Panel timing outputReal time wave displaySave / recall setting parametersThe SPD3000X series can save or recall 5 groups of setting parameters in internal storage, and also supports external storage expansion. Settings can be easily recalled if neededInternal StoragePC TimerFront Panel
Jeff K.
Reviewed in the United States on April 16, 2024
Take the Amazon ads with a grain of salt! You need to carefully read the specifications FROM THE MANUFACTURER! While this PSU boasts of 1mV resolution, that has nothing to do with ACCURACY! the resolution comes from the dial settings, and you can PROGRAM the output to 12.001V. That's all the RESOLUTION spec is saying. The spec you want is READBACK ACCURACY, which is clearly given for the SPD3303X as "Voltage±(0.03% of reading+10mV)", which when compared to other bench-grade power supplies, isn't terribly bad. That said, can you simply adjust the calibration pots inside the unit? Not really; and certainly not without affecting the calibration at other voltage levels. Calibration is done at specific voltage/current levels, so tweaking the output slightly, to match your (probably uncalibrated) meter is a bad idea, and will likely throw off the linearity of the PSU's display.
Bryan Harvey
Reviewed in the United States on February 7, 2023
This arrived yesterday from Curcuit Specialists. The calibration cert date is Nov 2022... so just recently. Look at the pics I attached. No matter where I set the channel #1 V it shows it is supplying 6 mV under (see pic) .. but my DMM shows 5mV higher then setting. An 11mV difference!!!I contacted Siglent and the support rep had no idea what the OUT number was supposed to represent but didnt feel ot was anything to be concerned about. But again... he didn't know what thia number was supposed to be. Ugh.So I contacted Curcuit Specialists whom thought it was fine, but agreed the values swinging with +- 12mV range was not good. So..... they offered to replace it... but I have to fill out a 3 page form and pay for return shipping!!!!! NOT GOOD SUPPORT!
PickIn&FlickIn
Reviewed in the United States on July 22, 2022
I debated purchasing this version SPS3303X and the less expensive SPS3303x-e. After researching both, I decided on the more expensive version because of the extra resolution. Spending a little more was well worth it for me. I like how quiet this DC power supply is, even under heavy load. The power supply came undamaged and was packaged very well. It was fitted in a very thick cardboard box, sandwiched in heavy duty styrofoam that gives the impression of it floating in the box. There were a couple of dents in the cardboard box, which caused no damage to the power supply. I’ve had the power supply for a few weeks now, I’ve used it everyday with no issues whatsoever. That’s all I want from equipment like this, just work. Would I recommend this power supply? Absolutely yes. If you decide to make the purchase I guarantee you will wonder why you did not do this earlier, it is that useful.
G Alan Gajo
Reviewed in the United States on August 9, 2021
I would give this 5 stars, but it arrived and was marked 2019. Now I have to pay to get it calibrated as I've measured it to be consistently 5mv off, much worse than its specified 1mV resolution. If I'm going to spend extra to get this unit over the X-E, I would expect it to arrive calibrated.
TigerTech
Reviewed in the United States on November 13, 2020
These are great supplies. I have two of them now.
Customer
Reviewed in the United States on November 5, 2018
Great product
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