Product Overview TC4-6T-75X+ is a 75 surface-mount DC isolated transformer with a secondary center tap that covers the 0.6 to 600 MHz band. This model provides a 4:1 secondary/primary impedance ratio, 1.0 dB insertion loss (typ.), 0.25W RF input power handling, 0.6 dB amplitude unbalance and 3° phase unbalance. Featur- ing core and wire construction mounted on a 5-lead plastic base with tin over nickel termination finish, the unit measures 0.15 x 0.15 x 0.16″, accommodating dense circuit board layouts. It also incorporates Mini- Circuits’ Top Hat® feature for faster, more accurate pick-and-place assembly.