CoolGaN™ Transistor 650 V G5 The IGLT65R025D2 GaN power transistor allows for increased efficiency at high-frequency operation. As part of the CoolGaN™ 650 V G5 family, it meets the highest quality standards, enabling highly reliable designs with superior efficiency. Housed in a top-side cooled TOLT package, it is designed for optimal power dissipation in various industrial applications.