DBTC-9-4L+

RF Directional Couplers Overview

The DBTC-9-4L+ is a surface mount directional coupler from Mini-Circuits, designed for signal conditioning applications. It operates within a frequency range of 5 MHz to 1000 MHz and maintains a 50 Ohm impedance. The component features an insertion loss maximum of 2 dB. Key electrical specifications include a coupling value of 9.0 ± 0.5 dB, directivity of ± 0.5 dB, and isolation values ranging from 17 dB to 21 dB depending on the specific test conditions. The device utilizes an SMD/SMT termination type and is available in cut tape or reel packaging formats.

RF Directional Couplers Feature Summary

• Provides precise signal sampling via directional coupling characteristics
• Supports broadband operation across the 5 MHz to 1000 MHz spectrum
• Utilizes a compact surface mount package for automated board assembly

RF Directional Couplers Applications

• RF signal monitoring and measurement systems
• Power monitoring in transmission lines
• Feedback loop control in RF circuits

RF Directional Couplers Procurement Notes

Verify the exact ordering suffix and packaging configuration when placing orders, as Mini-Circuits offers various options such as cut tape, MouseReel, and reels. Confirm that the selected variant matches the required quantity constraints and handling specifications. Ensure compliance with RoHS standards and check for any specific environmental documentation requirements relevant to your manufacturing process before finalizing procurement.

RF Directional Couplers Selection Notes

Select this component when a fixed coupling factor near 9 dB is required for broadband applications up to 1 GHz. Consider the low insertion loss specification for minimal signal degradation in sensitive paths. Evaluate the physical footprint against PCB space constraints, noting the micro-miniature case style. Compare directivity and isolation metrics against system noise floor requirements to ensure adequate signal separation performance.

RF Directional Couplers Part Context

This part belongs to the DBTC series of surface mount directional couplers manufactured by Mini-Circuits. The series is characterized by its use in signal conditioning tasks where reliable power division or sampling is necessary. The 'L+' suffix typically indicates lead-free compliance and specific packaging enhancements compared to older variants, aligning with modern environmental standards and automated assembly needs.

RF Directional Couplers Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. Users should consult Mini-Circuits engineering support for cross-reference recommendations based on specific electrical and mechanical requirements.