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11 February 2019

Littelfuse launches its first 650V SiC Schottky diodes

Littelfuse Inc of Chicago, IL, USA, which provides circuit protection technologies (including fuses, semiconductors, polymers, ceramics, relays and sensors), has launched the LSIC2SD065CxxA and LSIC2SD065AxxA Series second-generation series of 650V, AEC-Q101-qualified silicon carbide (SiC) Schottky diodes.

Available with a choice of current ratings (6A, 8A, 10A, 16A or 20A), they offer power electronics system designers a variety of performance advantages, including negligible reverse recovery current, high surge capability and a maximum operating junction temperature of 175°C, so they are suitable for applications that require enhanced efficiency, reliability and thermal management.

Compared with standard silicon PN-junction diodes, the 650V Series SiC Schottky diodes support dramatic reductions in switching losses and substantial increases in the efficiency and robustness of a power electronics system. Because they dissipate less energy and can operate at higher junction temperatures than Si-based solutions, they allow for smaller heat sinks and a smaller system footprint, providing end-users with the advantages of more compact, energy-efficient systems and the potential for a lower total cost of ownership.

Typical applications for 650V Series SiC Schottky diodes include: power factor correction (PFC), buck/boost stages in DC-DC converters, free-wheeling diodes in inverter stages, high-frequency output rectification, and electric vehicle (EV) applications.

Picture: Littelfuse’s new LSIC2SD065CxxA (left) and LSIC2SD065AxxA (right) GEN2 650V SiC Schottky diodes.

“These new series are our first 650V SiC Schottky diode offerings; all our previous releases were 1200V-rated devices, so we can now address a wider range of applications and further complement the Littelfuse SiC MOSFET portfolio,” says Christophe Warin, Silicon Carbide product marketing manager in Littelfuse’s Semiconductor business unit. “Their AEC-Q101 qualification puts these diodes in a higher class than similar devices in terms of quality and reliability,” he adds.

The 650V Series SiC Schottky diodes are said to offer the following benefits:

  • AEC-Q101-qualified diodes exhibit exceptional performance in demanding applications.
  • Far lower switching losses than silicon bipolar diodes and fast, temperature-independent switching behavior make the devices suitable for high-frequency power switching.
  • The positive temperature coefficient enables safe operation and ease of paralleling.
  • The 175°C maximum operating junction temperature provides a larger design margin and relaxed thermal management requirements.

LSIC2SD065CxxA Series SiC Schottky diodes are available in TO-252-2L (DPAK) packages, in tape & reel format, with a minimum order quantity of 2500 devices. LSIC2SD065AxxA Series SiC Schottky diodes are available in TO-220-2L packages, with 50 devices packed in a tube, with a minimum order quantity of 1000 units. Sample requests may be placed through authorized Littelfuse distributors worldwide.

See related items:

Littelfuse launches its first GEN2 1200V SiC Schottkys

Tags:  SiC Schottky barrier diodes SiC power devices

Visit:  www.littelfuse.com

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