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Power Supply


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Features & Benefits

  • One Fixed 5 V, 2 A Supply
  • Triple Output
  • Two Variable 0 to 20 V, 0.5 A Supplies
  • Analog Display
  • Variable Current Limiting
  • Overload Indicators
  • One Year Warranty


  • Training
  • Manufacturing Production Test
  • Field Repair
  • Bench Calibration and Repair
  • Product Design
  • Laboratory and Research
  • Education/Training

The CPS250 has a single fixed 5 V and 2 A supply and two variable 0 to 20 V, 0.5 A supplies.

Its compact design with tilt-bail handle takes up less bench space than most other power supplies, which makes it ideal for those no-fuss fundamental supply needs.


Output Voltage:

Output Current:

Line Regulation:

Load Regulation:


Output in independent mode:

Two variable 0 to 20 V (CV); 0.5 A (CC)

Output in parallel mode:

One 0 to 20 V, 1.0 A max

Series mode:

One 0-40 V, 0.5 A max or one ±20 V, 0.5 A


Two analog meters (switchable)


Safety certification:

UL1244, CSA231, EN61010-1, Denturi Mark

Two variable:

0 to 20 VDC

One fixed:

5.0 V

Two variable:

0 to 0.5 A (CC)*1

One fixed (foldback limited):

2.0 A max

Two variable:

0.01% + 3 mV (CV); 0.2% + 3 mA (CC)

One fixed:

≤10 mV (CV)

Two variable:

0.01% + 3 mV (CV); 0.2% + 6 mA (CC)

One fixed:

0.1% + 5 mV (CV)

Two variable:

2 mVRMS, 5 Hz to 1 MHz (CV); 3 mARMS, 5 Hz to 1 MHz (CC)

One fixed:


Tracking error:

±0.2% ±20 mV

Tracking error:

±0.2% ±20 mV

Voltage indicator:

0 to 25 VDC ±2.5% of full scale

Current indicator:

0 to 800 mA ±2.5% of full scale

Overload indicator:


Chassis to terminal:

>50 MΩ at 500 VDC

Chassis to power cord:

>50 MΩ at 500 VDC


Meets Directive 89/336/EEC

*1 (CC): When operated in Constant Current mode.

(CV): When operated in Constant Voltage mode.

Ordering Information

CPS250 Triple Output Power Supply

Includes: Operator's manual, 3 pairs of test leads, US power cord, one year warranty.

Tektronix Measurement Service

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