TC4-6T+

Balun Overview

The TC4-6T+ is a surface-mount RF transformer manufactured by Mini-Circuits, designed for broadband signal processing applications. It operates within a frequency range of 1.5 MHz to 600 MHz and features a 1:4 impedance ratio with 50 Ohm primary and secondary coils. The component supports a maximum DC current of 30 mA and has a power rating of 250 mW. It functions as an unbalanced-to-balanced balun with a center-tapped configuration. The device is housed in a compact SMD package measuring 3.81 mm x 3.81 mm x 4.06 mm and is rated for operation between -20°C and +85°C.

Balun Feature Summary

• Provides balanced-to-unbalanced conversion for RF signals across a wide bandwidth
• Features a center-tapped configuration for flexible circuit integration
• Designed for surface-mount assembly to support automated manufacturing processes

Balun Applications

• CATV systems
• VHF band signal processing
• UHF band signal processing

Balun Procurement Notes

Verify the specific suffix designation on the datasheet to confirm the exact variant, as different suffixes may indicate variations in packaging or performance characteristics. Ensure that the selected component meets the required RoHS compliance standards for your project. Cross-reference the manufacturer part number with official Mini-Circuits documentation to confirm availability and lead times before finalizing procurement plans.

Balun Selection Notes

Select this component when a 1:4 impedance transformation is required for frequencies starting at 1.5 MHz. Consider the physical dimensions of the 3.81 mm x 3.81 mm footprint for PCB layout constraints. Evaluate the thermal operating range of -20°C to +85°C against environmental conditions. Confirm that the 30 mA DC current limit and 250 mW power rating are sufficient for the intended signal path.

Balun Part Context

The TC4-6T+ belongs to the TC4 series of RF transformers from Mini-Circuits. This series is characterized by its use in audio and signal transformer applications requiring surface-mount technology. The component is part of a broader portfolio of passive RF components designed for high reliability and consistent performance in communication and industrial electronics.

Balun Replacement Considerations

Public confirmed substitute part numbers include TC4-6TX+, which offers an upgraded version with a Top Hat feature for faster pick-and-place and visual identification. Other related models in the family include ADTL1-15-75+ and TCM1-63AX+, though these may have different impedance ratios or frequency ranges.