PSL House, Eastern Avenue, Dunstable, LU5 4JY

About PSL

About PSL

PSL Assemblies Limited have designed and manufactured power semiconductor stacks with optimised thermal management since 1976.

A comprehensive CNC precision machining facility, electrostatic-protected assembly, design, testing and thermal simulation – all contained within one factory in Dunstable, United Kingdom.

Liquid-Cooled Plates Manufacturer United Kingdom
Heatsink Manufacturer UK

PSL combines innovation, design, and technical expertise with extensive in-house manufacturing, testing & assembly facilities.

Supporting the global Power Electronics marketplace, PSL manufacture Power Semiconductor Stack Assemblies and Engineered Thermal Management Solutions for a wide range of industrial electronic applications including: Medical Equipment, hospital & whole-building UPS back-up power supplies, Rail Traction, Hybrid Trains, HVDC, Nuclear Power Generation, LED Lighting, Renewable Energy, Electric Passenger Vehicles, Electric Construction Vehicles, Electric Agricultural Vehicles , Big Science, Laser, Welding, Offshore Oil & Gas, Refinery and Marine.

Efficient thermal management is critical to the reliability and performance of power electronic equipment and semiconductor stack assemblies. Choosing the right cooling solution for your unique electronics application is essential in prolonging the lifespan of both electronic components and power electronic systems.

From heatsink design through to complex turnkey power electronic assemblies, PSL offers a truly world-class service in the design & manufacture of all types of Standard Extrusion Heatsinks, Bonded Fin Heatsinks, Liquid-Cooled Plates, Semiconductor Stack Assembly, Sub-system Assembly, Electronic Box-Build and Thermally-Managed Electronics Enclosures.

Markets and Applications

Electric Buses & Coaches, and Heavy Electric Vehicles for Agriculture & Construction

  • Liquid Cooled Battery Cooling-Plates
  • Bespoke Heatsinks
  • Capacitors
  • Rectifier sub-assemblies
  • Inverter sub-assemblies
  • Isolator Cells

Rail Traction – Hybrid, Battery, & Hydrogen trains, and Bi-Mode & TriMode train conversions

  • Rectifier Stacks
  • IGBT Chopper Assemblies
  • Bi-Polar OLE Protection stacks
  • Isolator Cells
  • Capacitors

Uninterrupted Power & Back-Up Power – for Data Centres, Hospitals, & Whole-Building Power Supply Protection

  • Rectifier Sub-Assemblies
  • IGBT stacks
  • Static-Transfer Switches up to 5000A
  • Bonded-Fin Heatsinks
  • Extruded-Profile Heatsinks
  • Capacitors

High Powered Industrial Lasers

  • Bonded-Fin Heatsinks
  • Extruded-Profile Heatsinks
  • Liquid-Cooled Plates
  • Capacitors

Industrial Welding

  • Bonded-Fin Heatsinks
  • Extruded-Profile Heatsinks
  • Inverter sub-assemblies
  • Rectifier sub-assemblies
  • IGBT sub-assemblies
  • Thyristor sub-assemblies
  • Capacitors

Big Science & High-Technology Innovation

  • Bonded-Fin Heatsinks
  • Extruded-Profile Heatsinks
  • IGBT stack assemblies
  • Liquid-Cooled Plates
  • Capacitors
  • Capacitor Banks
  • Enclosures

Low Carbon, Net Zero & Renewable Energy

  • Bonded-Fin Heatsinks
  • Extruded-Profile Heatsinks
  • Inverter sub-assemblies
  • Rectifier sub-assemblies
  • Liquid-Cooled Plates
  • Capacitors
  • Capacitor Banks
  • Enclosures & Box-Builds

Soft Starts, Motor & Drive Controls

  • Bonded-Fin Heatsinks
  • Extruded-Profile Heatsinks
  • Thyristor stacks and sub-assemblies
  • Enclosures and box-builds

Induction Furnace, Heating & Melting

  • Bonded-Fin Heatsinks
  • Extruded-Profile Heatsinks
  • Thyristor stack assemblies
  • IGBT stack assemblies
  • Capacitors

Our Supply Partners

ICAR Suppliers
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