IN Brief:
- Vishay has added six 1200V Gen 7 FRED Pt hyperfast rectifiers in SMPC HV packages.
- The devices cover 1A, 2A, and 3A forward current ratings for high-efficiency switching applications.
- Power conversion design is becoming more sensitive to package size, recovery behaviour, creepage, and thermal performance.
Vishay Intertechnology has expanded its Gen 7 platform of 1200V FRED Pt hyperfast rectifiers with six new devices in the eSMP series SMPC HV package.
The devices are offered with forward current ratings of 1A, 2A, and 3A, and are aimed at industrial, automotive, telecom, energy, and electric vehicle applications. Target uses include clamp, snubber, and freewheeling diode functions in flyback auxiliary power supplies, high-frequency rectification for bootstrap drivers, desaturation protection for fast-switching IGBTs, silicon and silicon carbide MOSFETs, onboard chargers, motors, and industrial LED PFC CrM SEPIC circuitry.
The 1200V blocking voltage gives the rectifiers a role in systems where higher-voltage switching, insulation margin, and transient behaviour shape reliability. Vishay’s FRED Pt technology is designed to provide fast recovery while balancing forward voltage and reverse recovery losses, two characteristics that influence converter efficiency, thermal behaviour, EMI performance, and stress on neighbouring switching devices.
Package choice sits at the centre of the update. The SMPC HV format brings the devices into a compact surface-mount package with extended creepage, giving designers a route to higher-voltage rectification without defaulting to larger through-hole components. That supports denser power boards where automated assembly, board area, height restrictions, and insulation requirements must be resolved together.
Power electronics design is being pulled toward higher efficiency and greater density while reliability expectations remain severe. Diodes can appear secondary beside MOSFETs, IGBTs, controllers, or magnetics, yet their recovery performance and package parasitics can decide whether a design meets its loss, thermal, and EMC targets.
Faster silicon and wide-bandgap switching devices have sharpened the role of supporting components. As edge rates increase, weaknesses in reverse recovery charge, junction capacitance, package inductance, layout, and thermal path become more visible. A fast main switch can reduce losses, but only if the surrounding rectification, protection, drive, and snubber networks keep pace.
The same pressure is visible across power semiconductor coverage, including Infineon’s GaN patent ruling, where device performance, manufacturing scale, and commercial availability intersected in the power market. Vishay’s rectifier expansion sits lower in the component stack, but converter reliability is built from these individual device choices.
Packaging is also emerging as one of the more decisive parts of power electronics design, a direction reinforced by ROHM’s top-side cooling SiC package work. Wide-bandgap switches attract most of the attention, but rectifiers, drivers, protection components, passives, and thermal interfaces all have to support higher density.
The new Vishay devices are particularly relevant to auxiliary power, bootstrap, and protection paths, where currents may be lower than the main power stage but failures or excess losses can compromise the wider system. In those circuits, designers often have limited board area and little tolerance for thermal or isolation compromises.
Automotive and industrial systems also place weight on repeatability over long operating lives. EV chargers, energy storage systems, telecom power infrastructure, industrial drives, factory equipment, and LED power supplies can face high ambient temperatures, continuous operation, and difficult maintenance access. Component selection therefore has to account for thermal cycling, package robustness, solder behaviour, and application margins as much as headline ratings.
Vishay’s Gen 7 expansion gives engineers more current options inside a compact high-voltage rectifier family. It is a component-level addition rather than an architectural reset, but it supports the direction of modern converters: smaller layouts, tighter thermal budgets, faster switching, and fewer compromises around creepage and manufacturability.
