1200V SiC diode; fast inverters, industrial designs

March 16, 2016 // By Graham Prophet
Fairchild has released its first 1200V silicon carbide (SiC) diode, the FFSH40120ADN, which the company says begins a line of SiC products. The 1200V diode’s combination of switching performance, reliability and low electromagnetic interference (EMI) suit it for next-generation solar inverters, industrial motor controls and welders

The diode claims the best leakage current performance in its class, leaking far less current at temperatures up to 175C. The key benefits of this 1200V SiC diode include its extremely fast switching and no reverse recovery current, which dramatically reduces switching losses compared to silicon and results in superior energy efficiency. The diode’s ability to switch stably over a wide temperature range is another factor contributing to its performance, as is its zero recovery voltage which eliminates voltage overshoots.

The FFSH40120ADN diode also offers considerably greater ruggedness and reliability compared to equivalent silicon-based diodes due to SiC having superior thermal performance to silicon. The breakdown field of SiC is 10x higher than that of silicon and SiC also has 3x greater thermal conductivity.

 

Fairchild; www.fairchild.com