F-termination resistor with DC block ShiverPeaks 85334 — adapter for F-type connectors

ShiverPeaks 85334 is an adapter for F-type coaxial connectors that integrates a termination resistor with a DC block. It provides the correct impedance termination for RF signal lines while preventing direct current from passing through the connector. This combination is suited to applications where both line matching and DC isolation are required, such as cable television, satellite installations and RF testing setups.

Advantages

The adapter combines a precision termination resistor and an internal DC blocking capacitor in a single F-type inline unit, reducing the need for separate components. It maintains impedance matching to minimize reflections and signal loss while ensuring DC isolation for devices that must be protected from bias voltages. Its compact F-connector form factor permits easy insertion into existing coaxial runs without special tools.

Suitable for

• Cable TV distribution lines requiring proper termination and DC isolation
• Satellite LNB lines where DC must be blocked while preserving RF signal integrity
• RF test and measurement setups to prevent DC from affecting instruments
• Inline use in antenna feeds and signal splitters where impedance matching is necessary

Key specifications

• Connector type: F-type coaxial inline adapter
• Function: Termination resistor combined with DC block
• Impedance: Designed for standard 75 ohm coaxial systems
• Frequency range: Suitable for typical cable TV, satellite and RF frequency bands
• Form factor: Compact inline adapter for easy integration into coaxial runs

How to use

Install the adapter inline by connecting the F-type male or female ends to the corresponding coaxial cable or device ports. Ensure connectors are tightened securely but avoid over-torquing. Place the adapter at the point where both impedance termination and DC blocking are required — for example at the end of an unused branch, before a sensitive receiver, or within a test setup to isolate DC bias. Verify signal continuity and absence of DC with appropriate test equipment after installation.

Usage recommendations

Use the adapter where preserving 75 ohm impedance and preventing DC flow are both necessary. Do not rely on this device for lightning protection; follow grounding and surge-protection best practices for coaxial systems. Check compatibility with the frequency band and equipment in your installation prior to use.