D4-69FF

Overview

The Microlab D4-69FF is a 4-way Wilkinson power splitter designed for low-power signal distribution. It operates within a frequency range of 694 MHz to 2700 MHz, with some sources citing 698-2700 MHz. The component features SMA female connectors and handles up to 10W of power. Key electrical specifications include an insertion loss of 0.6 dB and a VSWR of 1.25:1. It provides good output isolation, prioritizing separation over minimal loss, making it suitable for professional RF applications requiring reliable signal splitting across diverse mobile communication bands.

Feature Summary

• Wilkinson architecture ensures high output port isolation
• Supports 4-way power division with SMA interfaces
• Optimized for low-power applications where isolation is critical

Applications

• Mobile communications signal distribution
• Professional RF test and measurement setups
• Telecom infrastructure signal splitting

Procurement Notes

Verify the specific connector type (SMA vs N-type) and exact frequency lower limit (694 MHz vs 698 MHz) against your system requirements, as documentation varies slightly between suppliers. Confirm that the 10W power rating aligns with your operational power levels to ensure component longevity and performance stability in low-power scenarios.

Selection Notes

Select this model when high output isolation is more important than achieving the absolute lowest insertion loss. It is appropriate for systems operating between 694 and 2700 MHz requiring four equal signal outputs. Ensure compatibility with SMA female ports on connected equipment. Consider the D4-69FN if N-type connectors are required instead.

Part Context

This component belongs to Microlab's Dx-69 series of Wilkinson-style power dividers. The series is engineered for low-power environments where maintaining signal integrity through isolation is preferred over minimizing attenuation. The D4-69FF specifically addresses the need for 4-way splitting in compact module formats with standard SMA connectivity.

Replacement Considerations

The D4-69FN serves as a direct functional substitute offering identical 4-way splitting capabilities but utilizes N-Female connectors instead of SMA. Verify connector compatibility before substitution. No other direct 4-way equivalents are explicitly confirmed in public data.