ZFBT-4R2GWB+

Overview

The ZFBT-4R2GWB+ is a coaxial bias tee from Mini-Circuits designed for wideband applications. It operates over a frequency range of 0.1 to 4200 MHz, providing low insertion loss. The component supports a maximum RF power of 30 dBm and handles up to 500 mA DC current at 30V. It features an SMA connector interface and utilizes the K18 case style. This model includes a built-in inductor and capacitor network to separate RF signals from DC bias efficiently.

Feature Summary

• Provides efficient separation of RF signals and DC bias currents within a single coaxial path
• Operates across a very wide frequency spectrum extending from sub-GHz to multi-GHz ranges
• Features low insertion loss characteristics to maintain signal integrity during transmission
• Constructed with robust internal components to handle specified DC voltage and current loads

Applications

• RF test and measurement equipment requiring simultaneous signal and bias delivery
• Active antenna systems needing integrated power injection
• Wideband amplifier circuits requiring DC bias through the RF path
• Communication subsystems utilizing broadband RF components

Procurement Notes

Verify the specific suffix 'W' indicates the correct variant for your assembly requirements. Confirm that the SMA connector type matches your system interface. Ensure the operating environment stays within the specified temperature and voltage limits. Check RoHS compliance status if required by your manufacturing standards. Review the datasheet for precise pinout and mechanical dimensions before integration.

Selection Notes

Choose this component when a wide bandwidth exceeding standard bias tees is necessary. Consider the 30 dBm power handling limit for high-power applications. Evaluate the physical size constraints against the K18 package dimensions. Compare insertion loss specifications against other models if signal fidelity is critical. Ensure the DC current rating meets the load requirements of the connected device.

Part Context

This part belongs to Mini-Circuits' broad lineup of coaxial bias tees. It shares design principles with similar models like the ZFBT-4R2G+ but offers extended low-frequency performance down to 0.1 MHz. The series is known for reliable performance in RF environments. Mini-Circuits manufactures these components using established processes for consistency.

Replacement Considerations

The ZFBT-4R2G+ serves as a related model but starts operation at 10 MHz rather than 0.1 MHz. Verify if the lower frequency capability is essential for your application. Other variants may offer different power ratings or connector types. Always cross-reference datasheets for electrical parameter differences before substitution.