Our comprehensive range of rectifier diodes offers class leading performance and reliability. Devices with blocking voltages from 400V up to 6kV are available making them ideal for applications with line voltages up to 2kV. Optimised to offer low conduction losses, these devices are ideally suited to line frequency applications including input rectifiers for variable speed drives, traction converters, trackside substations, welding and DC power supplies. Featuring compression bonded, alloyed Silicon wafer construction, these devices feature low thermal impedance and high overload capacity and are designed to survive even the most arduous applications.

The latest additions to the IXYS UK Westcode Ltd Rectifier Diode family are the new 56mm dia Si Rectifier Diodes. The new package designs have proven alloyed technology for better transient thermal and surge ratings, offering approximately 40% more current rating than 50mm products in the same space envelope.

Rectifier Diodes

Stud rectifier diodes Capsule rectifier diodes

Fast Recovery Diodes

Fast Recovery Diodes are an essential complement to any switching device and are more often than not the limiting factor in the design and performance of modern power converters. To address the needs of our customers, we have developed an unparalleled range of Fast Recovery Diodes. These diodes are available with blocking voltages up to 6 kV making them suitable for operation with DC link voltages up to 3.3 kV and average current ratings to 4 kA depending upon type. The devices utilise compression bonding along with both alloyed and floating silicon technologies to deliver robust devices that you can rely on in demanding applications. This range has been re-classified as follows to aid appropriate device selection; Fast Recovery, Soft Recovery, Extra Fast Recovery Diodes and HP Sonic-FRDs.

Fast Recovery Diodes: These parts are particularly suitable for use as anti-parallel diodes in Gate Turn-Off thyristors and Fast Thyristor inverters, diodes for choppers.

Stud fast recovery diodes

These parts are particularly suitable where soft recovery is required, such as RCD snubbers, voltage clamping and snubberless applications

Soft Recovery Diodes

Soft recovery diodes

Featuring a combination of the latest developments in lifetime engineering technologies. These products are designed to offer the lowest practical values of reverse recovery current whilst offering wide safe operating area and high di/dt capability required by modern switching components such as IGBT's and GCT's as well as pulsed power applications. Next generation parts currently in development will be released shortly.

Extra Fast Recovery Diodes

Extra fast recovery diodes

Introducing a world-leading class of ultra fast and ultra soft recovery diode available from 1.7kV to 4.5kV in current ratings from 300 to 2500A. These diodes incorporate a unique manufacturing process and lifetime control to offer a class leading trade-off between conduction and switching loses.  The wide safe operating area (SOA) makes them ideal as freewheeling diodes for snubberless IGBT and IGCT applications.   In fact, any application which requires a fast, low loss diode.  For example, traction, medium voltage drives, induction heating and pulsed power applications.  

High Power Sonic Fast Recovery Diodes

HP sonic fast recovery diodes

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