• QUESTIONS? GIVE US A CALL! 1 (570) 823-6181

You are here: Home > Product Categories > Power Conversion & Protection > Industrial Power Supplies > Linear Power Supplies

Linear Power Supplies

Linear Power Supplies

Shop linear power supplies designed to provide regulated DC output for instrumentation, electronics, control and other applications requiring stable low-noise power. Available designs may include single-output, dual-output and multiple-output configurations.

Compare linear power supplies by input voltage, output voltage, output current, number of outputs, regulation, ripple and noise, mounting configuration and physical size. Confirm the current requirement of each output when selecting a multiple-output supply.

How to Select a Linear Power Supply

Linear power supplies regulate DC output using a different approach from high-frequency switching supplies. They are commonly selected for applications where low output noise, predictable regulation and straightforward power conversion are important.

Linear designs can generate more heat and may be physically larger than switching supplies of comparable output power. Installation should provide the ventilation and space required by the manufacturer, particularly when the supply operates near its maximum current rating.

Important Selection Factors

  • Input voltage: Match the available AC input and frequency.
  • Output voltage: Confirm every DC voltage required by the connected equipment.
  • Output current: Verify the current rating of each individual output.
  • Number of outputs: Choose single, dual or multiple outputs according to the load.
  • Regulation: Review line and load regulation where voltage stability is important.
  • Ripple and noise: Compare output-noise specifications for sensitive electronic loads.
  • Thermal requirements: Provide adequate ventilation and account for operating-temperature limits.
  • Mechanical configuration: Confirm dimensions, mounting holes, covers and terminal locations.

Linear vs. Switching Power Supplies

Switching power supplies are generally smaller and more efficient for a given output power, while linear supplies may be preferred where low electrical noise or compatibility with an existing linear supply is important. The correct choice depends on the connected electronics, available space, thermal conditions and system requirements.

Replacement Checklist

  • Manufacturer and complete power-supply part number
  • Input voltage and frequency
  • All required output voltages
  • Current required from each output
  • Single, dual or multiple-output configuration
  • Physical dimensions and mounting-hole pattern
  • Terminal arrangement
  • Cover or enclosure requirements
Need help identifying a linear power supply?
Email [email protected] with the manufacturer, part number, input voltage, required output voltages and currents, dimensions and photographs of the existing supply.
Empty Cart