About GD Rectifiers. Engineers around a table discussing product ideas. Technical Support by GD Rectifiers.

About Us

A global manufacturer and distributor of products, services and solutions
to commercial and industrial users of power electronics

High quality products with expert advice and inspiration, whenever you need it

We’re more than a distributor

Innovation is at the heart of everything we do. We partner with the world’s leading power electronic component brands to provide you with the technology, products and expertise you need to innovate. We manufacture custom power products around the globe and go above and beyond to offer quality products and outstanding service to the people that matter most – you, our customers.

Shop 150+ Product Lines
Same Day & Next Day Delivery
Scheduled & Call-off Orders Available
Obsolescence Support
Reliable and Flexible Distributor

Who we are

We have been supplying power electronic components and customised devices to engineers, purchasing specialists and hobbyists for over 50 years. We deliver unrivalled customer service, ensuring our high-quality components are delivered on time and in budget, making us one of the UK’s leading distributors in the power electronics industry.

About Us

We have extensive experience across a large range of markets, specialising in new and current technologies for industrial power control applications. A broad product offering has built our exceptional reputation as the go-to custom power specialist with cutting-edge experience across aviation, automotive, rail, medical, military, industrial and commercial markets.

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Our Products

GD Rectifiers is your one-stop shop for power electronic components, we offer a wide range of standard and customised solutions. We work closely with customers to design and manufacture bespoke components, including selenium and silicon rectifiers, suppressors, converters, inverters, regulators, capacitors, heatsinks and power assemblies.

We manufacture an extensive range of power components and assemblies to suit all applications. We design and manufacture a wide range of heatsinks suitable for power semiconductors, LED lighting and commercial applications. We also offer a repair and replacement service for faulty or ageing semiconductor rectifiers, converters, inverters and regulators.

GD Rectifiers distribute state-of-the-art diodes, thyristors, IGBTs and MOSFETs from some the world’s leading manufacturers including IXYS, IXYS UK Westcode, Semikron and EDI.

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We’re more than a distributor of electronic components; we offer a wide range of niche services suited to engineers and purchasers with a focus on customised solutions, from design and build to prototypes and mass production runs.

  • Call-off Orders & Volume pricing
  • Component Obsolescence Support
  • CNC Machining
  • Customised Capacitors
  • Custom Designed Heatsinks
  • Customised Power Assemblies
  • LED Lighting Consultancy
  • Railway Components
  • Repair & Replacement Service
  • Semiconductor Design & Selection
  • Technical Support & Thermal Management Advice

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What we do

Our aim is to make it easier for engineers, buyers and purchasing specialists to find the products they need with our technical advice and support at the touch of a button.

We offer a wide range of services to help make our customers’ buying experience as seamless as possible. We ensure our focus is on the things that matter most to our customers, which is why we offer over 170,000 components in stock at any one time, provide call-off orders with scheduled deliveries, dedicated account management and we offer the best possible prices to our customers.

What we offer

We aim to provide a fast and convenient shopping experience, which is why we create tailored solutions for our customers, encompassing added value, huge savings and our technical expertise. We work hard to source you the best price, lead time and availability in record time because we know time to market matters.

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We're here to help

With a wealth of experience in power electronics and a track record of solving thermal management issues around the world, get to know our story.

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Line Card 2023

Have a quick glance at our range of products and services today.

Product Catalogue

Learn more about our extensive product range, the contract manufacturing services we offer and the markets and countries we sell to.
Engineer looking at custom designed solutions.

New Business Brochure

Interested in becoming an agent? Our New Business Brochure will give you all the information you need, contact us to request a copy.
Contact us

CNC Machining

We offer a precision CNC machining and milling service at competitive prices with a fast turnaround.

At GD Rectifiers, we have 5 CNC (computer numerical control) machining centres used to cut and shape pieces of metal, aluminium and steel, specifically for machining heatsink to bespoke outlines for customer requirements.

Watch our latest CNC Machining video on YouTube to find out more.


Design tools to suit you

Discover our carefully curated set of design tools, featuring semiconductor and fuse finders, product compare, stock list, and parts list pages. Our design tools help you search for products quickly and enables you to share them with colleagues.

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Get in touch

Need help with your enquiry or want to learn more about our products and services before placing an order? Get in touch with our team today to find out more.

Customer Testimonials

GD Rectifiers have been an important supplier to our business for decades now. They have always understood our needs and made the effort to help us to help our customers. We rely on their technical support and appreciate the professional and friendly way everyone carries out their business.

United Automation Ltd

The sales team at GD Rectifiers are always extremely helpful and polite. They are very knowledgeable about their products and reply to requests in a very timely manner. They offer the best prices and lead times for parts that they can.

Dale Power Solutions

We have been dealing with GD Rectifiers for a number of years and have always found them an excellent company to work with.

Maydown International Ltd

I have been dealing with GD Rectifiers now for over 30 years, originally as Oxford Welders and now as a freelance engineer and always have received the highest standard of service and quality. Highly recommended to anyone considering buying from them.

Freelance Engineer