TC9-1G2+

Balun Overview

The TC9-1G2+ is a surface-mount RF transformer manufactured by Mini-Circuits, designed for unbalanced-to-balanced signal conversion. It operates within a frequency range of 2 to 200 MHz and features a 1:9 impedance ratio with a base impedance of 50 ohms. The component exhibits an insertion loss between 0.76 and 1.68 dB and a return loss ranging from 6.08 to 15.80 dB. It supports a maximum current of 30 mA and handles up to 0.25 W of power. The device is housed in an AT224-3 package and functions reliably across temperatures from -20°C to 85°C.

Balun Feature Summary

• Provides unbalanced-to-balanced signal transformation using core and wire technology
• Engineered for surface-mount integration into compact circuit designs
• Maintains stable performance across specified operational temperature ranges

Balun Applications

• RF signal path balancing in communication systems
• Impedance matching networks requiring 1:9 transformation ratios
• Broadband signal processing circuits operating below 200 MHz

Balun Procurement Notes

Verify the specific suffix designation against official Mini-Circuits documentation to confirm exact electrical tolerances and packaging configurations. Ensure that the selected variant aligns with the required impedance ratio and frequency specifications for the target application. Cross-reference the datasheet parameters with system requirements before finalizing procurement orders.

Balun Selection Notes

Select this component when a 1:9 impedance transformation is required within the 2 to 200 MHz bandwidth. Consider the AT224-3 surface-mount footprint for PCB layout constraints. Evaluate the insertion loss and return loss specifications against system sensitivity requirements. Confirm that the 30 mA current rating and 0.25 W power handling capacity exceed the expected signal levels in the design.

Balun Part Context

This part belongs to the TC9 series of audio and signal transformers produced by Mini-Circuits. The series focuses on providing reliable unbalanced-to-balanced conversion solutions for RF and microwave applications. These components are characterized by their compact surface-mount packages and consistent performance across defined frequency bands.

Balun Replacement Considerations

Consult official Mini-Circuits substitution guides for verified alternative part numbers. Generic equivalents may not match the specific 1:9 impedance ratio or frequency response characteristics.