TCM1-43X+

Balun Overview

The Mini-Circuits TCM1-43X+ is a surface-mount RF balun transformer designed for single-channel applications. It operates within a frequency range of 10 MHz to 4 GHz, providing impedance transformation between 50 Ohms on the primary side and 50 Ohms on the secondary side. The component supports a maximum DC current of 30 mA and has a power rating of 400 mW. It functions as a 1:1 core and wire transformer with an amplitude balance ranging from ±0.03 to 0.97 dB and phase balance from 0.42 to 6.88 degrees. The device is housed in a compact SMD package measuring 4.06 mm x 3.81 mm x 4.06 mm and operates reliably between -40°C and +85°C.

Balun Feature Summary

• Provides balanced-to-unbalanced signal conversion using a 1:1 core and wire transformer architecture
• Delivers wide operational bandwidth covering frequencies from 10 MHz to 4 GHz
• Features low amplitude and phase imbalance characteristics for signal integrity
• Designed for surface mount technology with a compact footprint

Balun Applications

• RF front-end circuits requiring impedance matching
• Telecommunications systems utilizing S-band frequencies
• Signal processing assemblies needing balanced-to-unbalanced conversion

Balun Procurement Notes

Verify the specific datasheet version when ordering, as performance graphs may vary. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure PCB layout adheres to the suggested guidelines provided in the PL-364 reference design to maintain optimal electrical performance and thermal stability during operation.

Balun Selection Notes

Select this component when a wideband 50-ohm to 50-ohm balun is required for surface-mount designs. Consider the physical dimensions and operating temperature range against system constraints. Evaluate the amplitude and phase balance specifications against application requirements for high-fidelity signal transmission in RF environments.

Balun Part Context

This component belongs to the TCM1 series of audio and signal transformers manufactured by Mini-Circuits. The series focuses on providing reliable RF transformation solutions in compact packages suitable for modern electronic assemblies. It serves as a specialized passive component within broader RF and microwave product lines.

Balun Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.