Littelfuse – Ultra-Low Forward Voltage Drop Schottky Barrier Rectifier Outperforms Conventional Switching Diodes

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The LFUSCD Series of silicon carbide (SiC) Schottky diodes is the latest addition to Littelfuse’s growing line of power semiconductor products.

When compared to standard silicon bipolar power diodes, LFUSCD Series SiC Schottky diodes allow designers to reduce switching losses, accommodate large surge currents without thermal runaway, and operate at higher junction temperatures, all of which enable substantial increases in system efficiency and robustness.

The merged p-n Schottky (MPS) device architecture of the LFUSCD Series ensures enhanced surge capability and reduced leakage current. Available in voltage ratings of 650V and 1200V at current ratings ranging from 4A to 30A, they are well-suited for a broad range of markets, including industrial power supplies, solar inverters, industrial drives, welding and plasma cutting, and EV/HEV charging stations.

FEATURES AND BENEFITS

  • Best in class capacitive stored charge and near-zero reverse recovery make these devices suitable for high frequency power switching, ensure negligible switching losses, and reduce stress on the opposing switch
  • Best in class forward voltage drop ensures low conduction losses
  • Maximum junction temperature of +175°C provides for a larger design margin and relaxed thermal management requirements
  • Merged p-n Schottky (MPS) device architecture enhances surge capability and ensures extremely low leakage

APPLICATIONS

  • Power factor correction (PFC)
  • Buck or boost stages in DC-DC converters
  • Free-wheeling diodes in inverter stages (switch-mode power supplies, solar, UPS, industrial drives)
  • High frequency output rectification

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