TC4-25X+

Balun Overview

The TC4-25X+ is a surface-mount RF balun manufactured by Mini-Circuits, designed for balanced-to-unbalanced signal transformation. It operates within a frequency range of 500 MHz to 2.5 GHz and utilizes a 1:4 core and wire transformer architecture with a nominal 50Ω impedance. The component features an insertion loss ranging from 0.37 dB to 1.59 dB across its operational bandwidth. Electrical specifications include a return loss of 6.09 dB, a maximum power handling capacity of 0.25 W, and a current rating of 30 mA. The device is housed in a compact SMD module package suitable for high-density circuit board layouts.

Balun Feature Summary

• Provides precise balanced-to-unbalanced signal conversion using a 1:4 core and wire transformer design
• Ensures stable RF performance with low insertion loss and defined return loss characteristics
• Supports wideband operation covering the 500 MHz to 2.5 GHz spectrum
• Features a robust surface-mount construction optimized for automated assembly processes

Balun Applications

• S-band upconverter circuits
• Wideband push-pull amplifier configurations
• Balanced antenna impedance matching systems
• VHF/UHF receiver and transmitter front ends

Balun Procurement Notes

Verify the specific ordering suffix against official Mini-Circuits documentation to ensure correct packaging and marking orientation. Confirm that the requested quantity aligns with standard factory reel sizes or cut tape availability. Cross-reference the RoHS compliance status and environmental certifications prior to final procurement approval to meet project regulatory requirements.

Balun Selection Notes

Select this component when a 1:4 impedance transformation ratio is required for balanced-to-unbalanced signal interfacing. Ensure the operating frequency falls strictly within the 500 MHz to 2.5 GHz range to maintain specified electrical performance. Evaluate the 0.25 W power handling limit against system peak power levels to prevent thermal degradation or signal distortion during continuous operation.

Balun Part Context

This component belongs to the TC4 series of audio and signal transformers produced by Mini-Circuits. The series specializes in core and wire transformer technologies for RF applications. These devices are engineered to provide reliable signal conversion with minimal signal integrity loss, supporting various commercial and industrial wireless communication architectures.

Balun Replacement Considerations

Consult the official Mini-Circuits product selector for direct equivalents within the TC4 series. Verify pinout compatibility and physical footprint dimensions before substituting with other manufacturers' baluns to ensure seamless integration into existing PCB layouts.