STMicroelectronics has introduced new power transistors, including the world’s first 1500V super-junction MOSFET in an arcing-resistant TO-220 FullPAK (TO-220FP) package. The TO-220FP wide creepage package is ideal for power transistors of open-frame power supplies commonly used in equipment such as television sets and PCs, which are vulnerable to surface contamination by dust and particles that can cause high-voltage arcing between transistor terminals.
Conventional packages with 2.54mm lead spacing require additional processses such as special potting, lead forming, sleeving, or sealing needed to prevent the arcing. In contrast, the new package’s extended lead spacing of 4.25mm allows power-supply manufacturers to meet applicable safety standards and minimize field failures without applying these additional processes. This simplifies manufacturing and enhances productivity.
The TO-220FP wide creepage offers superior arcing resistance along with outstanding electrical properties of the popular TO-220FP. Moreover, similar outer dimensions help streamline design-in and ensure compatibility with established assembly processes, according to the firm.
The new TO-220FP wide creepage power transistors are available. They include four fully qualified 600V low-RDS(ON) MDmesh M2 MOSFETs with current ratings from 8A to 34A. The 1500V STFH12N150K5 and 1200V STFH12N120K5, MDmesh K5 devices, will be qualified by the end of Q3 2016.
For further information view the full Press release.