TNC Male Connector For RG58 / RG142 / RG223 / RG400 / LMR195 / RFC195 cables

“TNC Male Plug Crimp RG58 RG142 RG400 RFC195 Cable RF Coaxial Connector Pack of 10.” In essence, it’s a set of ten specialized electrical connectors designed for use with radio frequency (RF) signals. Each connector is a male TNC type, meaning it features a threaded coupling mechanism for a secure and stable connection, along with a center pin that mates with a female TNC receptacle. These connectors are “crimp” style, which means they are attached to compatible coaxial cables by compressing a metal sleeve around the cable’s outer braid and jacket using a dedicated crimping tool, ensuring a robust mechanical and electrical termination. The compatibility list—RG58, RG142, RG400, and RFC195—indicates that these 50 Ohm connectors are designed to fit various standard coaxial cable types, ranging from general-purpose flexible cables like RG58 to higher-performance, double-shielded, and high-temperature cables like RG142 and RG400, as well as low-loss cables like RFC195. This versatility makes them suitable for a wide array of RF applications where signal integrity, secure connection, and resistance to vibration are crucial, such as in wireless communication systems, test and measurement equipment, and various industrial and aerospace applications.

Technical Specification

1. Electrical Specifications:

Impedance: $50Ω$ (Ohms) – This is standard for TNC connectors and all the listed coaxial cable types (RG58, RG142, RG400, RFC195).
Frequency Range: Typically 0 to 6 GHz (Gigahertz) for standard versions. High-performance or precision TNC connectors can go up to 11 GHz or even 15 GHz.
Voltage Rating:
- Working Voltage: Often around $500 V_{RMS}$ (Volts Root Mean Square).
- Dielectric Withstanding Voltage (DWV): Often around $1500 V_{RMS}$ (at sea level).
VSWR (Voltage Standing Wave Ratio):
- Typically $< 1.3 : 1$ to $1.5 : 1$ at lower frequencies (e.g., up to 3 GHz).
- May degrade slightly at the higher end of its frequency range.
Contact Resistance:
- Center Contact: Typically $< 1.5$ m$\Omega$ (milliohms).
- Outer Contact: Typically $< 1.0$ m$\Omega$.
Insulation Resistance: Typically $\geq 5000$ M$\Omega$ (Megaohms).
Insertion Loss: Typically low, in the range of $< 0.1$ dB at lower frequencies, increasing with frequency.

2. Mechanical Specifications:

Connector Type: TNC Male Plug
Coupling Mechanism: $7/16 - 28 U NS - 2 A$ threaded coupling.
Termination Style: Crimp (for both center contact and outer ferrule/braid).
Cable Compatibility: Designed for coaxial cables with specific dimensions for:
- Inner Conductor: (Typically crimp-on for solid core, or solder for stranded, though many modern designs are crimp-all).
- Dielectric Diameter: Must match the connector’s internal design.
- Outer Braid/Shield: Crimped by the ferrule.
- Outer Jacket Diameter: Must fit within the ferrule/body.
- Compatible Cables: RG58, RG142, RG400, RFC195 (or LMR-195 equivalent).
Durability (Mating Cycles): Typically $\geq 500$ cycles.
Retention Force (Cable to Connector): Varies by cable type, but designed to withstand significant pull force.

3. Material & Plating:

Body: Often Brass (for strength and machinability).
Body Plating: Typically Nickel or sometimes Tin-Nickel for corrosion resistance and durability.
Center Contact: Often Brass or Phosphor Bronze (for elasticity and conductivity).
Center Contact Plating: Typically Gold (for excellent conductivity, corrosion resistance, and repeated mating).
Insulator: PTFE (Polytetrafluoroethylene, e.g., Teflon) or Delrin (Acetal Resin) are common dielectric materials due to their excellent RF properties and temperature stability.
Gasket/Seal (if waterproof): Silicone rubber or similar elastomer.

4. Environmental Specifications:

Temperature Range (Operating): Typically $- 6 5^{\circ} C$ to $+ 16 5^{\circ} C$ (depending on the specific materials used, especially the dielectric).
Corrosion Resistance: High resistance to salt spray, humidity, and other environmental factors (especially if plated with nickel or similar).
Vibration: Designed to maintain connection under vibration (due to threaded coupling).
Shock: Designed to withstand mechanical shock.

5. Tooling:

Crimp Tool: Requires a specific crimping tool with the correct die set for the ferrule and sometimes the center pin. (e.g., hex crimp size for the ferrule, often 0.213″ / 5.41mm for RG58, and specific sizes for RG142/RG400/RFC195).
Stripping Tool: A cable stripping tool designed for the specific cable types is also needed.