DBTC-9-4-75X+

RF Directional Couplers Overview

The Mini-Circuits DBTC-9-4-75X+ is a surface-mount directional coupler designed for 75Ω systems. It operates within a frequency range of 5MHz to 1.2GHz. The component features a nominal coupling factor of 9.3dB with a tolerance of ±0.5dB. Insertion loss typically ranges from 1.3dB to 1.8dB, while return loss is specified at approximately 37dB. The device supports a maximum power handling capacity of 500mW and utilizes a 5-pin SMD package.

RF Directional Couplers Feature Summary

• Provides precise signal sampling via 9.3dB coupling in broadband applications
• Engineered for compatibility with standard 75Ω RF transmission lines
• Supports high-frequency operation up to 1.2GHz for CATV and broadband systems

RF Directional Couplers Applications

• CATV network signal distribution
• Broadband access infrastructure monitoring
• RF signal sampling in 75Ω impedance environments

RF Directional Couplers Procurement Notes

Verify the specific datasheet version for the DBTC-9-4-75X+ to confirm current manufacturing status and RoHS compliance details. Ensure that the 75Ω impedance requirement aligns with your system design, as this component is not suitable for 50Ω architectures. Cross-reference the pinout configuration with your PCB layout to guarantee correct orientation during assembly.

RF Directional Couplers Selection Notes

Select this component when a 75Ω interface is required for frequencies extending to 1.2GHz. The 9.3dB coupling value offers a balanced trade-off between signal attenuation and sample availability. Consider the 500mW power rating to ensure it meets the operational limits of your specific circuit without risking thermal damage or performance degradation under continuous wave conditions.

RF Directional Couplers Part Context

This part belongs to the DBTC series of micro-miniature directional couplers manufactured by Mini-Circuits. The series includes variants optimized for different impedance standards and coupling values. The DBTC-9-4-75X+ specifically addresses the needs of broadband and CATV industries requiring reliable passive components for signal monitoring and distribution in 75Ω networks.

RF Directional Couplers Replacement Considerations

The DBTC-9-4-75L+ is a documented alternative within the same product family. Verify that the leaded variant matches the mechanical and electrical requirements of the surface-mount DBTC-9-4-75X+ before substitution.