DBTC-12-4-75LX+

RF Directional Couplers Overview

The DBTC-12-4-75LX+ is a surface mount directional coupler designed for 75 Ohm systems. It operates within a frequency range of 5 MHz to 1.2 GHz and provides a nominal coupling factor of 12 dB with a tolerance of ±5 dB. The component supports a maximum power handling capacity of 1 Watt. Key electrical specifications include a return loss of 26.61 dB. This device utilizes an SMD/SMT termination type for board mounting, facilitating integration into compact RF circuit designs requiring signal monitoring or splitting in broadband applications.

RF Directional Couplers Feature Summary

• Provides precise signal sampling via directional coupling architecture
• Engineered specifically for 75 Ohm impedance matching environments
• Supports wideband operation from low frequencies up to 1.2 GHz
• Utilizes surface mount technology for automated PCB assembly

RF Directional Couplers Applications

• CATV network signal distribution and monitoring
• Broadband access infrastructure components
• DOCSIS system passive component integration
• RF test and measurement setups

RF Directional Couplers Procurement Notes

Verify the specific suffix 'LX' against the manufacturer's current datasheet to confirm exact mechanical dimensions and pinout configuration. Ensure that the 75 Ohm impedance requirement aligns with the target system design, as this component is not suitable for standard 50 Ohm circuits without appropriate matching networks. Confirm RoHS compliance status through official documentation prior to final procurement approval.

RF Directional Couplers Selection Notes

Select this component when a 75 Ohm system environment is required rather than the standard 50 Ohm variant. Consider the 12 dB coupling value relative to the desired signal tap level for the specific application. Evaluate the 1W power rating against the maximum expected signal levels in the circuit to prevent damage. Verify that the surface mount package fits the available PCB real estate constraints.

RF Directional Couplers Part Context

This part belongs to the Mini-Circuits DBTC series of surface mount directional couplers. The series offers various coupling factors and impedance options to suit different RF design needs. The DBTC-12-4-75LX+ specifically addresses the niche market for 75 Ohm broadband applications, distinguishing it from the more common 50 Ohm models like the DBTC-12-4L+. It serves as a passive signal conditioning element within larger RF assemblies.

RF Directional Couplers Replacement Considerations

The DBTC-12-4-75X+ is a related model within the same family but may differ in physical packaging or specific manufacturing revisions. Direct substitution requires verifying identical impedance, frequency range, and coupling characteristics. No other public substitute part numbers are confirmed for this specific 75 Ohm variant.