As leading experts in the specification and application of all types of Power Semiconductors, PSL provides a complete range of Power Semiconductor Devices including: Fast-Switching Thyristors, IGBT modules, Phase Control Thyristors and Rectifier Diodes. For over 30 years, PSL has worked closely with Infineon Technologies – with many of our customers still specifying Infineon products for use in specialist Diode, Thyristor and IGBT stack assemblies.


PSL Assemblies are the UK agent and distributor for Proton Electrotex – power semiconductor manufacturers based in Russia. Proton Electrotex combine high-quality manufacturing, comprehensive testing to stringent quality standards, expert technical knowledge, globally competitive prices, and industry-best delivery times to provide an unrivalled service in the supply of all types of high power semiconductor devices. Please see our “services” section for more details on the Proton Electrotex range.

PSL are a flexible and agile manufacturing company, and working to individual customer preferences we can incorporate all other leading brands of Power Semiconductor into our assemblies.
Our technical expertise and experience with Power Semiconductors enables us to assist our customers with all aspects of Semiconductor application and specification – advising on thermal considerations, performance, reliability, compatibility, adaptability, stack assembly, bespoke clamping solutions and bespoke complex requirements.