ST Microelectronics of Geneva, Switzerland has introduced a range of 2A-40A 1200V silicon carbide (SiC) JBS (Junction Barrier Schottky) diodes. The company claims that with its SiC technology, the new JBS diodes offer high switching efficiency, fast recovery, and consistent temperature characteristics.
The company also contends that its SiC-diode manufacturing process produces robust devices with the superior forward voltage (lowest VF). ST notes that the high efficiency and reliability of using diodes with lower current rating translates to lower cost for applications including power adapters, solar inverters, home appliances, and industrial motor drives.
At the same time, ST says that performance-demanding applications can utilize the 1200V versions of the SiC JBS diodes for superior efficiency, small size, low weight, their best-in-class thermal properties.
Their lower forward voltage drop (VF) reportedly provides the higher efficiency margin for automotive equipment including charging stations for Electric or Plug-In Hybrid Vehicles (EV/PHEV) and On-Board Battery Chargers (OBC). However, their overall robust electrical performance makes them ideal for use in large solar inverters, server and telecom power supplies, high-power industrial Switched-Mode Power Supplies (SMPS) and motor drives, uninterruptible power supplies (UPS).
In addition to the SiC efficiency gains, achieving the lowest VF helps reduce operating temperature translating to longer application lifetime. ST says it manufacturing process allows the diodes to exhibit lower spread on the datasheet-guaranteed VF. This narrower spread on the VF results in superior reproducibility when building circuits in high volumes, ST pointed out.
ST’s new 1200V SiC diode family covers ratings from 2A to 40A, including automotive-qualified devices, in surface-mount DPAK HV (High-Voltage) and D²PAK, or through-hole TO-220AC and TO-247LL (Long-Lead) packages. ST says it is the only supplier to offer 1200V SiC diodes in the D²PAK package. For orders of 1000 pieces, the budgetary pricing starts at $2.50.