CoolGaN™ Transistor 175 V G3 in PQFN 3x5, 6.7 mΩ The IGC090S18S1 is a 175 V normally-off e-mode power transistor housed in a small PQFN 3x5 package, enabling high power density designs. Thanks to its very low on-state resistance, it is the ideal choice for reliable performance in demanding high-voltage and high-current applications.