Description
The BNC female 4-hole panel mount connector with a 12.7mm flange is a precision RF component designed for maximum space efficiency without compromising mechanical integrity. This variant features a 12.7mm square flange, providing the smallest standard footprint for a flange-mounted BNC interface. This makes it the premier choice for high-density equipment faces where space is at an absolute premium. The 4-hole mounting pattern ensures the connector remains perfectly fixed, providing far superior anti-rotation and vibration resistance compared to miniature bulkhead designs.
As a female interface (jack), it features the standard bayonet housing for rapid, secure mating with BNC male plugs. This model utilizes a solder cup termination for the center contact, ensuring a permanent, low-resistance electrical connection. This design is highly versatile and compatible with thin-diameter 50-Ohm coaxial cables typically used for internal chassis routing, such as RG178, RG174, or RG316. Manufactured with a durable nickel-plated brass body and premium PTFE (Teflon) insulation, it delivers consistent signal integrity and reliable performance up to 4 GHz.
Key Technical Advantages
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Ultra-Compact 12.7mm Flange: The miniature flange size allows for the highest possible port density on small equipment faces and modular sub-assemblies.
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4-Hole Secure Mounting: Despite its small size, the four anchor points provide exceptional mechanical stability and resistance to torque during frequent mating cycles.
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Universal Solder Termination: The rear solder cup allows for a direct electrical connection, making it ideal for custom micro-electronics and specialized internal wiring.
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Standard Bayonet Housing: Features the industry-standard BNC female interface for rapid, tool-less mating that remains mechanically stable under physical stress.
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Superior Corrosion Resistance: Features a precision-machined nickel-plated body and gold-plated center socket to ensure low contact resistance and long-term protection against oxidation.
Key Features
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Interface Type: BNC Female (Jack) with standard bayonet coupling.
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Mounting Style: 12.7mm (0.5″) 4-Hole Square Flange Panel Mount.
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Termination Method: Solder Cup (Center Socket) / Solder Tab or Flange Ground (Outer).
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Cable Compatibility: Universal (Commonly used with RG178, RG174, RG188, and RG316).
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Premium Construction: Features a precision-machined brass body and high-performance PTFE dielectric.
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Common Application: Modular RF sub-systems, handheld testing devices, high-density patch panels, and compact medical electronics.
Technical Summary
| Parameter | Specification |
| Impedance | 50 Ohm (Nominal) |
| Frequency Range | DC – 4 GHz |
| Flange Size | 12.7mm x 12.7mm (0.5″ x 0.5″) |
| Body Material | Brass (Nickel Plated) |
| Contact Material | Beryllium Copper (Gold Plated) |
| Dielectric | PTFE (Teflon) |
| Coupling Mechanism | Bayonet |
| Operating Temp | -65°C ~ +165°C |







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