TC1-1-43X+

Balun Overview

The TC1-1-43X+ is a surface-mount RF transformer manufactured by Mini-Circuits, designed for balanced-to-unbalanced signal transformation. It operates within a frequency range of 650 MHz to 4 GHz. The component features a 1:1 impedance ratio with both primary and secondary coils rated at 50 Ohms. It supports a maximum DC current of 30 mA and has a power rating of 250 mW. The device functions reliably between -40°C and +85°C. Its physical dimensions are 3.81 mm x 3.81 mm x 4.06 mm, housed in a single-channel SMD package.

Balun Feature Summary

• Provides balanced-to-unbalanced transformation for RF signals
• Operates across a wide frequency band from 650 MHz to 4 GHz
• Features low phase difference characteristics for signal integrity

Balun Applications

• Wideband push-pull amplifier circuits
• HF/VHF system impedance matching
• Balanced antenna interface connections

Balun Procurement Notes

Verify the specific suffix designation against official Mini-Circuits documentation to ensure correct impedance and frequency specifications. Confirm RoHS compliance status through the manufacturer's latest datasheet. Ensure the ordering quantity aligns with available packaging options such as cut tape or reel formats specified in the product catalog.

Balun Selection Notes

Select this component when a compact surface-mount solution is required for high-frequency balanced-to-unbalanced conversion. Consider the 50 Ohm impedance match for standard RF systems. Evaluate the thermal operating range and power handling capabilities against circuit requirements before integration into the design.

Balun Part Context

This part belongs to the TC1 series of audio and signal transformers produced by Mini-Circuits. The series includes various configurations for different frequency ranges and mounting styles. The TC1-1-43X+ specifically addresses applications requiring operation up to 4 GHz with a core and wire construction method.

Balun Replacement Considerations

Consult Mini-Circuits official substitution guides for compatible alternatives. Verify that any substitute maintains the same 1:1 ratio, 50 Ohm impedance, and frequency coverage. Cross-reference pinout compatibility and physical footprint dimensions to ensure seamless integration.