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September 2022 – Customised Power Semiconductor Assemblies

High performance, high power semiconductor assemblies designed to your specification

Customised power semiconductor assemblies by GD Rectifiers

GD Rectifiers have been designing and manufacturing power assemblies for over fifty years. Using the latest technology and advanced software along with decades of experience, we design and manufacture quality, high-performance power semiconductor assemblies in-house to deliver standard and bespoke specifications at the touch of a button.

Discover our comprehensive range of power assemblies today.

Single Phase Assemblies

GD Rectifiers provides a range of half controlled and fully controlled single-phase assemblies fitted with line fuses, indicators, micro switches, Dv/Dt suppression and thermal trips.

View Single Phase Assemblies


Three Phase Assemblies

The custom power specialist GD Rectifiers offers a wide range of star uncontrolled, star controlled, half controlled, fully controlled and motor soft starters and energy savers.

View Three Phase Assemblies


Hex-phase Assemblies

GD Rectifiers a wide range of hexaphase assemblies including double star uncontrolled and double star controlled.

View Hex-phase Assemblies


Custom Power Assemblies

GD Rectifiers works with customers to design and manufacture customised state-of-the-art power semiconductor assemblies. We combine semiconductor devices with our bespoke thermal management products including diodes, thyristors, IGBTs and MOSFETs in a wide variety of topologies.


Power Assemblies & Controllers: The Complete Range

GD Rectifiers offers a large range of power assemblies and controllers, including: rectifiers, regulators, firing circuits and trigger modules, selenium suppressors, rotating diode assemblies, photovoltaic triple diode assemblies, blocking and voltage dropping diodes and selenium rectifiers.


Can’t find the power semiconductor assembly you require on our website? We welcome the opportunity to discuss your requirements to offer an alternative solution or to design a bespoke build for you.

We also offer several custom flexible ordering options including call-off orders and scheduled orders. We offer a call-off service for customers that want to order a large amount of assemblies in one go to get the best possible pricing, but do not have the warehouse space to stock all of the products at their site. GD Rectifiers offers to keep the product on their shelves over an agreed period of time and will send products out when a call-off order is requested. This flexibility in placing orders and managing stock fulfilment is one of the reasons why customers keep shopping with GD Rectifiers.

At GD Rectifiers we understand that the key buying factors and project priorities for engineers can change quickly, which is why we’re proud to offer flexible products and services to our customers. We organise scheduled orders for customers that want to order a large amount of assemblies but want to stagger the drops over a 12-month period, we liaise with the factories to ensure we receive the semiconductor devices required at our warehouse on schedule, enabling us enough time to manufacture and build the assemblies ready in time for the customer to receive them on the scheduled dates.

GD Rectifiers prides itself on being an independent power assembly manufacturer, offering expert technical support and advice 24/7, providing customers with the expertise they need to complete projects quickly and on-budget. Customers shop with GD Rectifiers because they appreciate our specialist, dedicated sales and engineering teams that are at hand to support buyers, procurements specialists and engineers every step of the way, from quote right the way through to delivery.

For further information on our extensive power semiconductor assembly range or to discuss your requirements with our friendly team, please call: 01444 243 452 or email: or tailor your enquiry online by completing request a quote form here.

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