Mini-Circuits’ TCW2-2700+ is a tiny ceramic RF balun transformer with an impedance ratio of 1:2, cover- ing a variety of wireless communications applications from 500 to 2700 MHz. This model provides, low amplitude unbalance, and RF input power handling up to 0.5W. It provides DC isolation from input to output allowing it to be used for DC biasing of external circuits at the output. Fabricated using LTCC technology, the unit comes housed in a tiny, rugged ceramic package (0.06 x 0.03 x 0.02″) suitable for harsh operating environments.