DBTC-9-4-75+

RF Directional Couplers Overview

The DBTC-9-4-75+ is a surface mount RF directional coupler manufactured by Mini-Circuits, designed for signal conditioning applications. It operates within a frequency range of 5 MHz to 1200 MHz and features a nominal coupling factor of 9.3 ± 0.5 dB. The component is optimized for 75Ω systems, making it suitable for CATV infrastructure. It supports a maximum power handling capacity of 1W and exhibits a maximum insertion loss of 2 dB. The device utilizes an SMD/SMT termination type and is housed in a compact module package.

RF Directional Couplers Feature Summary

• Surface mount construction for automated assembly
• Optimized for 75Ω impedance environments
• Broadband operation from 5 MHz to 1200 MHz

RF Directional Couplers Applications

• CATV network signal distribution
• Broadband access system monitoring
• RF signal sampling in 75Ω transmission lines

RF Directional Couplers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with your design requirements. Confirm that the 75Ω impedance specification aligns with your system architecture, as this component is distinct from standard 50Ω variants. Check for any recent product change notifications regarding pinout or material composition updates before finalizing procurement plans.

RF Directional Couplers Selection Notes

Select this component when a 75Ω interface is required for frequencies up to 1.2 GHz. Ensure the 1W power rating meets the system's operational limits. Consider the surface mount package size for PCB layout constraints. Verify that the 9.3 dB coupling value provides sufficient signal isolation for your specific monitoring or sampling needs without excessive attenuation.

RF Directional Couplers Part Context

This part belongs to the DBTC series of surface mount directional couplers produced by Mini-Circuits. The series includes variants for both 50Ω and 75Ω systems. The DBTC-9-4-75+ specifically addresses the needs of cable television and broadband networks where 75Ω impedance is standard. It complements other passive components like transformers and diplexers in complete system architectures.

RF Directional Couplers Replacement Considerations

The DBTC-9-4-75L+ is a listed variant within the same family. Verify if the 'L' suffix indicates a different lead configuration or packaging format while maintaining identical electrical performance. Do not substitute with 50Ω models such as the DBTC-9-4+ without verifying impedance matching requirements.