TTC2-63W+ RF Transformer Mini-Circuits TTC2-63W+ RF Transformer covers a wide frequency range from 100MHz to 6000MHz for many broadband applications. The compact, surface-mount transmission line core and wire transformer provide a low insertion loss of 2.0dB, typically up to 4GHz. The transformer features a low phase and amplitude unbalance of 5° typical and excellent common-mode rejection performance of 22dB typical. Mini-Circuits TTC2-63W+ RF Transformer measures 0.10' x 0.06' x 0.07' to accommodate dense circuit board layouts.