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Mastech HY1803D DC Power Supply Single Output 0-18V @ 0-3A

Mastech HY1803D Regulated DC Power Supply 0-18V @ 0-3A Variable Single Output, Linear Mode

Availability: In stock


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Mastech HY1803D is highly stable, high quality linear regulated power supply with its output continuously adjustable at 0-18V DC and 0-3A. HY1803D variable power supply comes with 2 LCD displays, providing accurate readout for the voltage and current values.


For sale is a brand new, professional DC regulated power supply from Mastech, Model number HY1803D. This is a highly stable, high quality linear power supply with its output continuously adjustable at 0-18V DC and 0-3A. The unit comes with 2 LCD displays, providing accurate readout for the voltage and current values. 

Features & Specifications:

Adjustable outputs: 0-18V and 0-3A Variable controls for both current and voltage outputs

Input voltage: 110V/60Hz

Switchable Line regulation: CV <= 0.01% + 1 mV, CC <= 0.2% + 1 mA

Load Regulation: CV <= 0.01% + 3mV, CC <= 0.2% + 3 mA

Ripple noise: CV <= 0.5 mV RMS, CC <= 3 mA

RMS Protection: constant current and short-circuit protection

LCD reading accuracy: +/-1% for voltage and +/-2% for current

Environment: 0-40C, relative humidity < 90%

Size: 9" x 6.8" x 3.7"

Weight: 10 lbs

Want to know how to use Mastech HY1803D? Please read the pdf below:
Mastech HY1803D DC Regulated Power Supply – Users Manual.pdf

Compatible Part Number:

Mastech HY1803D, Linear Mode

Compatible Model:

Constant voltage/ Constant Current.
Voltage  and Current adjustment.
Protection: High current limited.
Back light for dark use.

Excellent for lab, science projects, ham radio, tattoo, slot car or any other use where stable voltage up to 18 volts is required.

Additional Information:

Warranty: 1 year


As advertised, more or lessReview by tony Gallegos
Here are a few observations right after receiving this power supply:

* It has a cheap feel to it, but what do you expect at this price?
* The voltage output is reasonably close over the whole range

These are just my initial impressions; hopefully I can devote some time to it in the near future and do a more in-depth review. (Posted on 3/1/12)
A great value for its priceReview by Hendrik Josephus Morton
One of my responsibilities of my job is to design pet toys. Recently, our company made a decision to develop battery driven toys for cats. As a substitute for various battery packs to drive the prototypes this variable power supply is a great time saver. Not only does it allow me to check the performance of a toy using different voltages but also to determine the amp draw of the motor to allow us to specify what type of battery is needed in the production models. The digital display is great and I have no regrets of buying this model rather than the lower priced one with the analog display. (Posted on 12/13/11)
Awesome power supply!Review by Sam Brandt
I needed an "electroplating machine" and this little power supply is just that! This little unit is sold through the jewelry supply catalog for plating, and it costs considerably more from the jewelry supply company. I ordered through internet, saved a few bucks, and now have shiny new nickle plated thingamajigs! (Posted on 11/8/11)
Good productReview by Matthew
The MASTECH HY1803D DC POWER SUPPLY arrived shortly after the order was placed and it works like a charm. I recommend this product. Plus: stable power, large digital display, easy operation. minus: the technical description (manual) is a bit skimpy. (Posted on 10/19/11)
GoodReview by Drew
The current display shows how much current is being passed. The voltage shows how much voltage is being applied. It feels solid, the knobs are perfect for fine tuning. This product does exactly what it says, and very well. (Posted on 3/21/11)
GoodReview by Larry
The two most important things about this power supply are:
(1) The single adjustment knobs - 1 for voltage, 1 for amperage - are sufficient for both fine and coarse adjustments. With a little patience its easy to adjust by 1/100th. 1/10th or greater adjustments are mostly effortless.
(2) The output reading on the display is correct. I spent about 20 minutes when this first arrived comparing voltage and amperage output with a multimeter for the entire range that this power supply supports. All values were within 0.01 of the reading on the display (*note: I was hoping for 0.5 or better, so the accuracy that I found was a pleasant surprise). (Posted on 3/3/11)

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