Description
RF Coaxial F-Type Male Connector (4.5mm Crimp/Screw-On)
Product Overview
The 4.5mm F-Type Male Coaxial Connector is a high-frequency RF connector engineered specifically for terminating small-diameter, low-loss coaxial cables (such as mini RG-59, RG-179, or specialized 4.5mm outer-diameter high-density cables). Commonly utilized in television, satellite, and broadband internet distributions, the F-connector profile relies on a threaded coupling mechanism that ensures a stable, highly shielded physical joint against structural vibration and RF signal leaks.
Designed for tight space deployments and precision high-frequency signal distribution, this 4.5mm variant establishes a solid ground connection directly over the cable’s outer braiding. Its specialized narrow entry port makes it an essential hardware component for modern high-density patch panels, multi-switch satellite routers, and custom RF processing sub-assemblies.
Key Features
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Threaded 3/8-32 Quick-Mate Coupling: Features standard integrated internal threads that screw tightly onto standard F-female ports, providing a permanent, high-shielding mechanical lock.
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Low-Loss 75Ω Impedance Matching: Precision manufactured to deliver a consistent $75\,\Omega$ impedance profile across high-frequency ranges, completely minimizing signal attenuation and packet reflections.
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Machined Nickel-Plated Brass Body: Built from rugged machined brass with high-grade anti-corrosive nickel plating, ensuring exceptional durability and consistent ground shielding over hundreds of mating cycles.
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High-Density 4.5mm Entry Funnel: Specifically dimensioned with a 4.5mm inner collar to fit slim, space-saving coaxial lines perfectly without leaving gaps that let dust or external EMI enter.
Technical Specifications
| Parameter | Specification |
| Connector Type | F-Type Male (Plug / Threaded RF Coaxial) |
| Gender | Male (Plug) |
| Impedance | $75\,\Omega$ (Standard for television, satellite, and data transmission) |
| Frequency Range | DC to 3 GHz Max (Optimized for digital HD and satellite frequencies) |
| Coupling Thread | 3/8-32 UNEF Threaded Coupling |
| Termination Style | Hex Crimp, Compression, or Screw-On (Variant specific) |
| Cable Entry Diameter | 4.5mm ($0.177\text{ inch}$) |
| Material (Body) | Premium Machined Brass, Nickel-Plated |
| Material (Center Conductor) | Direct Cable Core Exposure (Uses the coaxial solid center copper wire) |
| Material (Dielectric Insulation) | Internal High-Density Polyethylene / POM Spacer |
| Compatible Cables | Mini RG-59, RG-179, Slim-Profile 4.5mm OD Coaxial Cables |
| Shielding Effectiveness | $\ge -80\,\text{dB}$ (Minimum interference leakage) |
Applications
The ideal, economical connector solution for high-density video routing, satellite arrays, and compact digital distribution systems:
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Satellite TV & CATV Distribution: Perfect for routing high-definition digital cable television signals, satellite multi-switch splitters, and set-top boxes utilizing slim cabling.
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Broadband Cable Modems: Connecting high-speed internet gateways and distribution amplifiers inside compact residential or commercial telecommunication boxes.
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High-Density Patch Panels: Ideal for custom RF matrix patch fields where limited spacing demands thin 4.5mm coaxial cables to bundle massive numbers of channels.
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DIY RF Enclosures & Hardware Testing: Providing a neat, highly shielded input/output node on custom PCB receiver modules, automated radio test rigs, and hardware breakout boards.

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