MALVERN, PA — Vishay Intertechnology, Inc. (NYSE: VSH) has introduced a new series of advanced silicon carbide (SiC) Schottky diodes aimed at boosting efficiency in high-speed, hard-switching power systems. The launch includes three Gen 3 devices — the 1 A VS-3C01EJ12-M3 and 2 A VS-3C02EJ07-M3 and VS-3C02EJ12-M3 — all housed in Vishay’s compact SlimSMA HV (DO-221AC) package.
Designed with a merged PIN Schottky (MPS) structure, these diodes deliver lower capacitive charge and consistent switching behavior across temperature ranges, enabling reduced power losses and faster performance. With a minimum creepage distance of 3.2 mm, they provide superior electrical isolation, making them ideal for high-voltage applications.
The SlimSMA HV package offers a significant advantage for space-constrained designs, boasting a low profile of just 0.95 mm — less than half the height of traditional SMA and SMB packages. Its high comparative tracking index (CTI ≥ 600) ensures strong insulation performance, further enhancing safety and reliability.
Unlike conventional silicon diodes, Vishay’s new SiC devices maintain low capacitive charge (as low as 7.2 nC) regardless of temperature, contributing to higher switching speeds and improved system efficiency. The absence of a recovery tail and a reduced forward voltage drop, down to 1.30 V, help minimize losses during operation. A positive temperature coefficient also simplifies paralleling, a key requirement in high-power designs.
Rated for operating temperatures up to +175 °C, the new diodes are targeted for use in demanding environments such as DC/DC and AC/DC converters in server power supplies, renewable energy systems, industrial drives and tools, and X-ray generators. They are particularly suited for roles as bootstrap, anti-parallel, and power factor correction (PFC) diodes.
In addition to performance benefits, the new SiC diodes are RoHS-compliant and halogen-free, meeting environmental standards. They also achieve a Moisture Sensitivity Level of 1 per J-STD-020 and comply with the JESD 201 class 2 whisker test, ensuring high reliability in diverse operating conditions.
With these advancements, Vishay continues to expand its portfolio of next-generation semiconductor solutions aimed at increasing efficiency and reducing footprint in modern power electronics.
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