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Rectangular bench power supply, dark metal case, 3.5 inch colour display, front knobs and keypad

Matrix

Matrix MPS-301 20V 6A 120W Linear DC Power Supply

SKU CH-3S32-76P5E

A 120 W linear DC supply with 1 mV and 0.1 mA resolution, USB data storage, battery-charging mode and SCPI/MODBUS control

  • Max wattage120 W
  • Power supply redundancyMATRIX MPS-301 20 V 6A 120 W Single Channel Linear DC Power
  • Output type120 W
  • 12V railsMATRIX MPS-301 20 V 6A 120 W Single Channel Linear DC Power
  • Power factor correctionMATRIX MPS-301 20 V 6A 120 W Single Channel Linear DC Power
  • Built-in protectionLinear programmable dc power supply adjustable power supply
  • Precise voltage and current control with 1 mV and 0.1 mA resolution
  • Clear readings on a 3.5-inch TFT colour display adjustable by keypad or knob
  • Automated test sequences via list output function with low ripple and noise
  • Fast voltage rise under 10 ms and adjustable ramp rates for dynamic loads
  • Remote integration using RS-232, RS-485 and USB with SCPI and MODBUS commands

Precision bench supply for test engineers

The Matrix MPS-301 is a single-channel linear programmable DC power supply rated at 120 watts with a 20 volt, 6 amp output. It delivers 1 millivolt voltage resolution and 0.1 milliamp current resolution for exact bench characterisation. The unit targets production-line validation, laboratory research and automated integration rigs that demand clean, programmable power.

Thermals and noise in daily operation

An intelligent fan controller adjusts speed to load, keeping acoustic output low during routine tests while protecting the linear regulation stage. Low ripple and low noise performance is maintained across the operating range without the switching artefacts common in high-frequency designs. The chassis measures 4.3 by 11.4 by 7.2 inches and weighs 13 pounds, dissipating heat through forced convection.

Connectivity and automation extras

A 3.5-inch colour TFT shows live readings and menu navigation via keypad or rotary knobs. Front-panel USB accepts external drives for list-file storage and recall, enabling repeatable voltage and current ramp sequences with adjustable upward slope under 10 milliseconds. Rear RS-232, RS-485 and USB ports implement SCPI and MODBUS for remote sequencing, while external trigger and battery-charging modes extend test coverage without extra hardware.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $316.99
Pricier than about 85% of the 3,798 comparable items (median $131.99).
Max wattage 120 W
Lower than about 95% of the 235 comparable items (median 668 W).

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Specifications

Product
Brand nameMATRIX
Product line20 V 6A, MPS-301
Model name20 V 6A
Part numberMPS-301
Ports & slots
Output type120 W
Power
Max wattage120 W
Power supply redundancyMATRIX MPS-301 20 V 6A 120 W Single Channel Linear DC Power Supply Programmable, 1mV 0.1 mA High Resolution, USB Data Storage, Adjustable Upward Slope, Battery Charging and External Triggering Function, linear programmable dc power supply adjustable power supply for Prouduction line work bench routine test Lab and institute Electronic repair Automated equipment integration testing
12V railsMATRIX MPS-301 20 V 6A 120 W Single Channel Linear DC Power Supply Programmable, 1mV 0.1 mA High Resolution, USB Data Storage, Adjustable Upward Slope, Battery Charging and External Triggering Function, linear programmable dc power supply adjustable power supply for Prouduction line work bench routine test Lab and institute Electronic repair Automated equipment integration testing
Power factor correctionMATRIX MPS-301 20 V 6A 120 W Single Channel Linear DC Power Supply Programmable, 1mV 0.1 mA High Resolution, USB Data Storage, Adjustable Upward Slope, Battery Charging and External Triggering Function, linear programmable dc power supply adjustable power supply for Prouduction line work bench routine test Lab and institute Electronic repair Automated equipment integration testing
Built-in protectionLinear programmable dc power supply adjustable power supply for Prouduction line work bench routine test Lab and institute Electronic repair Automated equipment integration testing
Size & build
Product dimensions4.3 in × 11.4 in × 7.2 in
Product weight13 lb (5.9 kg)
In the box
In the boxMATRIX MPS-301 20 V 6A 120 W Single Channel Linear DC Power Supply Programmable, 1mV 0.1 mA High Resolution, USB Data Storage, Adjustable Upward Slope, Battery Charging and External Triggering Function x 1

Questions about this item

How do I connect the MPS-301 to mains power and which step do users often miss?

The unit accepts 110V or 220V input with automatic switching; the step often missed is confirming the front-panel voltage setting matches the local mains before first power-on.

What maintenance or replacement will the MPS-301 need after extended use?

The internal cooling fan is the only wear item; plan to clean its intake vents periodically and replace the fan assembly if bearing noise appears.

What limit appears first when the MPS-301 runs at full 120W output continuously?

Over-temperature protection activates first; the intelligent fan ramps up, but sustained maximum load will trigger thermal shutdown until the chassis cools.

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