CoolGaN™ Transistor 700 V G4 for ultimate efficiency and reliability The GS-065-014-6-LR is an enhancement-mode GaN-on-Si power transistor with properties that allow for high current, high voltage breakdown, and high switching frequency.Housed in the bottom-side cooled PDFN package, it offers very low junction-to-case thermal resistance, making it ideal for demanding high-power applications. These features combined ensure very high efficiency in power switching.