Use this LDB212G4005C-001 RF transformer from Murata to step down voltages in your radio frequency circuit. It has an operating frequency of 2.3GHz to 2.5GHz. This RF transformer has a minimum operating temperature of -40 °C and a maximum of 85 °C. It has 6 terminals. It also has a balun transformer. This product is 1.6 mm long, 0.6 mm tall and 0.8 mm deep. It has a turn ratio of 1:1.