Silicon Carbide (SiC) is a Popular Choice for Power Electronic Devices

As more engineers choose to use silicon carbide, we look at the benefits SiC has to offer.

Silicon

Silicon has been used as a semiconductor switch for over 50 years and the quest for higher switching frequencies, higher blocking voltages, lower losses, greater power densities and increased operating temperatures has led to the launch of Silicon Carbide (SiC) and other wide band gap materials used in power devices.

Silicon Carbide

Silicon Carbide is fast becoming more widely used in power semiconductors because silicon based devices have almost reached their maximum theoretical performance. Silicon Carbide is considered a Wide Band Gap (WBG) Material which defines the difference in energy levels between the material’s conduction and valence boards.

The diagram featured below shows the filled bands which refer to the electrons occupying the regions and the holes are evident in the unfilled regions. When you apply external energy in the form of heat or light, electrons are excited to jump the band gap into the conduction band and the current is allowed to flow.

Wide Band Gap

The wider band gap leads to a higher critical electrical field (approximately 10 times greater than Silicon) improving breakdown voltages and enabling higher blocking voltages for power devices Silicon Carbides are a cost effective alternative, they are able to switch much faster than Silicon with lower losses. This enables passive and magnetic components to be downsized in design, leading to greater power density for the converter.



What Type of SiC Devices are Available?

For many years, Wind Band Gap materials such as SiC and GaN have been used in light emitting devices with the first practical launch of SiC power devices being the Schottky Barrier Diode (SBD) which was introduced in the nineties. Since then numerous other SiC power devices have been released, these include: rectifier diodes, MOSFETs, JFETs, BJTs and thyristors.

GD Rectifiers is Europe’s leading official distributor for SEMIKRON products, including: SiC Hybrid range (Si IGBT and SiC SBD) and the full SiC range (SiC MOS and SiC SBD’s) power modules. The modules are available in SEMIKRON’s popular packages including: SEMITRANS3, MiniSKiiP, SEMITOP, SEMIPACK2, SKiM93 and SEMiX3P.


For further information on the complete SEMIKRON product range available from GD Rectifiers, or to discuss your next SiC power module and thermal management requirements, please call: 01444 243 452 or email: enquiries@gdrectifiers.co.uk.

GD Rectifiers is a Global Manufacturer and Distributor of products, services and solutions to commercial and industrial users of power electronic components.

Established in 1964, GD Rectifiers has over 50 years of extensive experience across a large range of markets, specialising in new and current technologies for industrial power control applications. An extensive product offering has built GD Rectifiers exceptional reputation as the go-to power specialist with innovative experience across: Aviation, Automotive, Rail, Medical, Industrial and Electronics markets.

GD Rectifiers have extensive experience in the rail industry and are RISQS Qualified.

GD Rectifiers is a ISO 9001:2015 registered company that design and develop bespoke power semiconductor assemblies to control voltage, current and frequency for international industrial markets.

GD Rectifiers designs and manufactures Selenium and Silicon Rectifiers, Suppressors, Converters, Inverters, Regulators and all other power products for Industrial power control applications. The company distributes state of the art Diodes, Thyristors, IGBTs and MOSFETs from the world’s leading manufacturers including: IXYS, IXYS UK Westcode, Semikron and EDI.

GD Rectifiers manufacture an extensive range of power components and assemblies. The company also supplies a wide range of Heat Sinks suitable for Power Semiconductors, LED Lighting and similar applications. GD Rectifiers also offer a repair and replacement service for faulty or ageing Semiconductor Rectifiers, Converters, Inverters and Regulators.

GD Rectifiers
Bentley House
2 William Way
Burgess Hill
West Sussex
RH15 9AG

This release was published on openPR.