ZFBT-4R2GW+

Overview

The ZFBT-4R2GW+ is a coaxial bias tee from Mini-Circuits designed for wideband RF applications. It operates over a frequency range of 0.1 to 4200 MHz, providing low insertion loss typically at 0.6 dB. The component supports a maximum RF power of 30 dBm and handles DC currents up to 0.5 A with a voltage rating of 30 V. It utilizes SMA connectors and is housed in the K18 case style, ensuring reliable performance across diverse signal frequencies.

Feature Summary

• Provides simultaneous transmission of RF signals and DC bias through a single coaxial path
• Features low insertion loss for minimal signal degradation across a broad frequency spectrum
• Constructed with robust SMA connectors for secure and repeatable connections

Applications

• Biasing active RF components such as amplifiers and mixers
• Integration into test and measurement instrumentation setups
• Supporting wireless communication system architectures requiring combined signal paths

Procurement Notes

Verify that the specific application requirements align with the 0.1 to 4200 MHz operational bandwidth and the 30 dBm maximum RF power limit. Confirm that the DC current does not exceed 0.5 A and the voltage remains within the 30 V specification. Ensure compatibility with SMA connector interfaces and verify that the K18 package dimensions fit the intended mechanical layout before finalizing procurement.

Selection Notes

Select this model when a wideband frequency response extending down to 0.1 MHz is required alongside standard RF power handling capabilities. Consider the typical 0.6 dB insertion loss for sensitive signal chains. Evaluate the physical constraints of the K18 case style against available board space. This component is suitable for designs needing a compact solution for combining DC power with high-frequency RF signals without significant performance penalty.

Part Context

This part belongs to the ZFBT series of bias tees manufactured by Mini-Circuits. The series offers various models tailored for different frequency ranges and power levels. The ZFBT-4R2GW+ specifically addresses applications requiring operation from sub-GHz frequencies up to 4.2 GHz, distinguishing it from lower or higher frequency variants within the broader product family.

Replacement Considerations

Consult official Mini-Circuits documentation for direct substitutes. Verify that alternative models match the 0.1 to 4200 MHz range and SMA interface. Ensure replacement parts maintain equivalent DC current and voltage ratings.