BNC Male Right Angle Connector for RG58 / RG142 / RG223 / RG400 / LMR195 / RFC195 cables

BNC Male Right Angle Connector, designed for use with RG58, RG142, RG223, RG400, LMR195, and RFC195 coaxial cables, is a specialized 50 Ohm RF connector that offers a 90-degree bend in its form factor. This right-angle design is crucial in applications where space is limited, cable bending radius needs to be minimized, or a neat, flush connection to a device is required, preventing strain on the cable and the equipment’s port. As a male connector, it features a bayonet-style coupling nut for quick and secure attachment to female BNC jacks. These connectors typically employ crimp or solder termination for the center pin and a crimp method for the outer braid and jacket, ensuring a reliable electrical and mechanical connection for these relatively smaller diameter 50 Ohm cables. They are widely utilized in video, test and measurement, and various radio communication systems where a compact, low-profile connection is beneficial.

Technical Specification

1. Electrical Characteristics:

Impedance: 50 Ohms ( $Ω$ )
Frequency Range: DC to 2 GHz (typical for right-angle designs, due to internal bends affecting performance at higher frequencies), some specialized versions may extend up to 4 GHz with increased VSWR.
VSWR (Voltage Standing Wave Ratio):
- Typically $\leq 1.30 : 1$ up to 1 GHz
- $\leq 1.50 : 1$ up to 2 GHz
Insertion Loss: Low, typically $\leq 0.2$ dB at 1 GHz; $\leq 0.4$ dB at 2 GHz (higher than straight connectors due to geometry).
Return Loss: Typically $\geq 18$ dB at 1 GHz.
Working Voltage: 500 V RMS (at sea level)
Dielectric Withstanding Voltage: 1500 V RMS (at sea level)
Insulation Resistance: $\geq 5000$ M$\Omega$
Contact Resistance:
- Center Contact: $\leq 3$ m$\Omega$ (initial)
- Outer Contact: $\leq 2$ m$\Omega$ (initial)

2. Mechanical Characteristics:

Connector Type: BNC Male (Plug) – Right Angle
Mating Interface: BNC (Per MIL-STD-348B/301 or IEC 61169-8)
Cable Compatibility: Designed for:
- RG-58/U
- RG-142/U
- RG-223/U
- RG-400/U
- LMR®-195 (and equivalents like RFC®-195, CFD-195)
- Note: These cables have similar outer diameters and dielectric sizes.
Cable Attachment Method:
- Center Contact: Solder (most common and reliable for right-angle designs due to internal geometry) or Crimp.
- Outer Braid/Jacket: Crimp (using a dedicated crimp ferrule and hex die size, typically around 0.213″ to 0.255″ depending on cable and connector design).
Coupling Mechanism: Bayonet (quick connect/disconnect)
Cable Retention (Axial Force): $\geq 40$ lbs (178 N) for RG58/LMR195 (varies by termination method).
Durability (Mating Cycles): $\geq 500$ cycles

3. Materials and Finishes:

Body: Brass, Nickel Plated (typically 100 µin min for corrosion resistance).
Center Contact: Brass or Phosphor Bronze, Gold Plated (typically 3-50 µin over Nickel for optimal conductivity and wear resistance).
Insulator: PTFE (Polytetrafluoroethylene / Teflon) for excellent electrical properties and high temperature performance. Less expensive versions might use Delrin or PE.
Crimp Ferrule: Annealed Copper or Brass, Nickel Plated.

4. Environmental Characteristics:

Operating Temperature Range:
- PTFE Insulated: $- 6 5^{\circ}$ C to $+ 16 5^{\circ}$ C
- PE/Delrin Insulated: $- 4 0^{\circ}$ C to $+ 8 5^{\circ}$ C
Thermal Shock: MIL-STD-202, Method 107, Condition B
Vibration: MIL-STD-202, Method 204, Condition D
Mechanical Shock: MIL-STD-202, Method 213, Condition I
Moisture Resistance: MIL-STD-202, Method 106
Corrosion (Salt Spray): MIL-STD-202, Method 101, Condition B (48 hours)