New high-voltage Schottky diodes combine ultra-low profile, fast switching, and enhanced insulation for compact, high-frequency power designs.
Vishay Intertechnology is turning up the voltage—and the efficiency—with its latest launch of Gen 3 silicon carbide (SiC) Schottky diodes. Announced July 9, 2025, the new 1 A and 2 A devices deliver higher energy efficiency and robust electrical isolation, all in a compact, low-profile package ideal for space-constrained designs.
Housed in the company’s new SlimSMA HV (DO-221AC) package, the three diodes—VS-3C01EJ12-M3 (1 A, 1200 V), VS-3C02EJ07-M3 (2 A, 650 V), and VS-3C02EJ12-M3 (2 A, 1200 V)—are built with a merged PIN Schottky (MPS) structure. This design ensures faster switching, minimal capacitive charge (as low as 7.2 nC), and negligible recovery tail—critical features for high-speed, hard-switching topologies like server PSUs, DC/DC converters, energy storage systems, and X-ray generators.
The key features are:
- Guaranteed minimum creepage distance of 3.2 mm
- CTI rating of ≥ 600 for enhanced tracking resistance
- High-CTI molding compound ensures reliable electrical insulation at high working voltages
Engineered for thermal stability and high-frequency operation, the devices exhibit temperature-invariant switching performance and a reduced forward voltage drop (as low as 1.30 V). Plus, their positive temperature coefficient supports easy paralleling in power modules.
They have enhanced electrical insulation. The SlimSMA HV package features a minimum creepage distance of 3.2 mm and is molded with a high Comparative Tracking Index (CTI ≥ 600) compound, meeting stringent isolation needs in high-voltage environments. The package also stands out for its ultra-low profile of just 0.95 mm, making it about 60% slimmer than traditional SMA and SMB options.
Fully RoHS-compliant, halogen-free, and Moisture Sensitivity Level 1 rated, the new SiC diodes are also built to last under tough industrial conditions—with a high operating temp ceiling of +175 °C and compliance with the JESD 201 class 2 whisker test.
