OREANDA-NEWS. December 13, 2012. Toshiba Corporation (TOKYO: 6502) has launched an addition to its line-up of ultra-small USOP package photorelays, the high voltage, high current TLP3306. In addition for application in a range of high voltage semiconductor testers, especially SoC testers, which require particularly high voltage characteristics, the new photo relay is also a candidate for other applications that include battery and power supply control.