Description
The BNC female 4-hole panel mount connector with a 25mm flange is a high-stability RF component designed for maximum mechanical security at the enclosure interface. This variant features an oversized 25.4mm (1 inch) square flange, providing a broad mounting surface that distributes mechanical stress more effectively than standard bulkhead or smaller flange mounts. The 4-hole pattern ensures the connector remains perfectly fixed and torque-resistant, even during high-frequency mating cycles or in environments subject to constant vibration.
As a female interface (jack), it features the standard bayonet housing for rapid, secure mating with BNC male plugs. This specific model utilizes a solder cup termination for the center contact and a solder-on or bolt-on grounding point for the outer conductor. This design offers maximum versatility, allowing it to be used with almost any 50-Ohm coaxial cable, from thin RG174 to thicker RG58 or LMR240, provided the cable is prepared for internal chassis soldering. Manufactured with a durable nickel-plated brass body and premium PTFE (Teflon) insulation, it delivers consistent electrical performance and signal integrity up to 4 GHz.
Key Technical Advantages
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Oversized 25mm Flange Stability: The large square flange provides a robust mounting base with four anchor points, offering superior anti-rotation and high-vibration resistance for mission-critical panels.
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Universal Solder Termination: The rear solder cup allows for a direct, low-resistance electrical connection to the center conductor, making the connector independent of specific crimp tool requirements.
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Heavy-Duty Construction: Built to withstand mechanical strain, the thick-walled brass body ensures long-term durability in industrial and field-deployed environments.
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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: 25mm (1 inch) 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 RG174, RG316, RG58, RG142, LMR195, LMR200, and LMR240).
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Premium Construction: Features a precision-machined brass body and high-performance PTFE dielectric.
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Common Application: Military communication racks, aerospace avionics, high-end test instrumentation, and industrial RF control panels.
Technical Summary
| Parameter | Specification |
| Impedance | 50 Ohm (Nominal) |
| Frequency Range | DC – 4 GHz |
| Flange Size | 25.4mm x 25.4mm (1″ x 1″) |
| 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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