MCM Electronics

Variable Switch Mode Power Supply - 1-20VDC up to 5 Amp By Tenma (72-8350A) MCM Part #72-8350A

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Switch Mode Laboratory DC Power Supplies
Precision adjustable supply provides adjustable 1~20VDC output with adjustable current limiting from 0~5A. It is ideal for test, measurement and service applications where tight voltage and current regulation are critical. Highly efficient switch mode design delivers outstanding performance from an extremely compact footprint. Unique separate output ON/OFF control allows voltage and current setting, with the supply output turned off.

Part of a Complete Series, this slim supply occupies little bench space while providing very high precision and 90W of continuous output.

Specifications Top

  • Backlit four digit LCD display
  • Simultaneous display of voltage and current
  • Auto selecting constant voltage (CV) and constant current (CC) modes
  • Ultra quiet convection cooling
  • Short circuit, overload, over voltage and thermal protection
  • 84% efficiency at maximum output
  • RoHs compliant


  • Voltage range: 1.0 ~ 20.0VDC
  • Current range: 0 ~ 5.0A
    Voltage regulation
  • Load (from 10 ~ 100%): 70mV
  • Line (from 90 ~ 132VAC): 20mV
  • Ripple and noise (rms): 5mV
  • Ripple and noise (p-p): 30mV
    Current Regulation
  • Load (from 10 ~ 100%): 20mA
  • Line (from 90 ~ 132VAC): 20mA
  • Ripple and noise (p-p): 20mA
  • Dimensions: 6" (H) x 2.8" (W) x 9.8" (D)
  • Weight: 4.4 lbs.
    Part Numbers
    MCM Part #:72-8350A
    Tenma Part #:72-8350A
    Package Specifications & Dimensions
    Weight:4.99 lbs.
    Warranty:365 days
    Need to Return?
    Length:14 in.
    Width:7.5 in.
    Height:4.25 in.
    Shipping Information
    Extra Shipping Charge:No
    Drop Ship:No
  • Product Reviews Top

    • by MarkTaylor

      on 9/22/2013

      Adjustment is not easy

      Overall: 3 out of 5

      I have not used it much yet but I have to spin the knobs a lot to change the setting. If you push in the button, it will change the digit you are adjusting but just momentarily. If you need to change the current or voltage often to test a device, it is not a good supply for the applicaiton.