FMBT1639

Overview

The FMBT1639 is a broadband bias tee manufactured by Fairview Microwave, designed for RF applications. It features an SMA male input connector and a DC SMA connector. The device operates within a frequency range of 50 kHz to 26 GHz. It is rated for a maximum voltage of 25 volts and a maximum current of 0.75 amps. Insertion loss varies between 1.4 dB and 3 dB across the operational bandwidth.

Feature Summary

• Integrates DC power injection with RF signal transmission via dedicated connectors
• Supports broadband operation from low frequencies up to 26 GHz
• Constructed with SMA interface connectors for standard compatibility

Applications

• RF test and measurement setups requiring simultaneous DC bias and signal path
• Active antenna systems needing integrated power delivery
• Broadband amplifier circuits requiring DC supply through the signal line

Procurement Notes

Verify that the required DC current does not exceed 0.75 A and voltage remains within 25 V limits. Confirm SMA male input compatibility with source equipment. Ensure the application frequency falls within the 50 kHz to 26 GHz range to maintain specified insertion loss performance. Check datasheet for thermal constraints during continuous operation.

Selection Notes

Choose this component when a single unit must handle both DC biasing and RF transmission without external combiners. The SMA interface suits standard benchtop or panel-mounted configurations. Consider the insertion loss variation between 1.4 dB and 3 dB when designing high-gain or low-noise chains. Verify that the physical size fits the intended enclosure or rack space.

Part Context

This bias tee belongs to Fairview Microwave's passive RF adapter and misc IC module category. It complements other RF interconnect solutions by enabling active component integration into passive signal paths. The design focuses on maintaining signal integrity while providing necessary DC power to downstream active devices in microwave systems.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.