TCD-20-4-75X+

Product Overview

TCD-20-4-75X+ from Mini-Circuits is a RF directional coupler used to sample a controlled portion of an RF signal while maintaining the main through path. This product detail focuses on practical coupling, frequency-range, insertion-loss and interface data for engineering and procurement review.

It is suitable for designs where the exact coupling value, impedance, connector/package format and RF power rating must match the existing schematic or test setup before purchase.

Key Features

• Manufacturer: Mini-Circuits
• Part Number: TCD-20-4-75X+
• Device Type: RF directional coupler
• Coupler Configuration: directional RF sampling coupler for monitoring forward or coupled RF power
• Frequency Range: 5 MHz to 1000 MHz
• Coupling Factor: 20 dB nominal
• Insertion Loss: low mainline loss class; Mini-Circuits TCD-20-4 listing identifies 50 Ω, 5 to 1000 MHz operation
• Directivity / Isolation: directional coupler performance shown in Mini-Circuits data curves
• System Impedance: 75 Ω
• Power Handling: surface-mount low-power RF sampling coupler; verify exact max RF power from the TCD datasheet
• Package / Connector: surface-mount TCD package; 75 Ω options use 75 Ω variant where suffix includes -75
• Design Notes: Confirm coupling direction, terminated port requirements, land pattern or connector interface, and the exact datasheet revision before substitution.

Applications

RF power monitoring, transmitter feedback, ALC loops, VSWR sensing, test fixtures and communication-system signal sampling.

Useful in production test, lab measurement, wireless infrastructure, cable/telecom equipment and RF front-end validation where a defined coupled output is required.

Quality & Sourcing

Antrex Electronics can support sourcing for TCD-20-4-75X+ through available stock checks, BOM consolidation and alternative-lot review. For RF directional couplers, coupling value, frequency range, connector or land-pattern compatibility and packaging condition should be confirmed before shipment.

For shortage coverage, repair projects or engineering builds, Antrex Electronics can coordinate visual inspection, package verification and third-party testing when required. This helps buyers manage risk when sourcing discontinued, legacy or hard-to-find RF coupler parts.