TNC Connectors Flange Mount Connectors Custom

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TNC Connectors Flange Mount Connectors Manufacturer

Product Overview
TNC Flange Mount Connectors are panel-mount termination devices that combine the threaded, vibration-resistant TNC coupling interface with a robust multi-point flange chassis attachment. Where a BNC flange connector might be chosen for a laboratory bench instrument, the TNC flange mount is specified when the same panel port must additionally withstand continuous vibration, thermal cycling, or mechanical shock—conditions typical of mobile communications shelters, shipborne electronics bays, and ground-based radar antenna pedestals.

The flange body distributes pull-out and shear forces across two or four mounting bolts rather than concentrating them on a single threaded hole, making the assembly significantly more resistant to connector damage from accidental cable strain. Jingcheng's flange mount TNC connectors are manufactured with close attention to the panel-face flatness of the flange and the squareness of the through-body bore, both of which directly affect mating thread alignment and long-term connector durability.

Key Features
Four-hole or two-hole flange patterns; standard bolt-circle dimensions compatible with common industry chassis punch-outs, enabling drop-in qualification on existing panel designs.
Frequency performance to 11 GHz—panel ports can be populated once and remain valid as system RF architectures migrate to higher operating frequencies.
Rear termination options include solder cup (cable entry), straight solder-post (PCB through-hole), and crimp sleeve; all options terminate to 50Ω characteristic impedance.
Panel sealing with elastomer gasket available for weatherproofed or pressurized enclosures; specify IP65 or IP67 when ordering.
Body materials: nickel-plated brass (standard), passivated stainless steel (corrosive environments), and tri-metal plated options for salt-spray resistance exceeding 96 hours.
Both standard TNC and reverse-polarity (RP-TNC) flange mount versions available from the same production platform.

Competitive Advantages
Jingcheng sources all plating in-house, providing full traceability of plating bath composition and thickness measurement records. This level of documentation is routinely requested by defense and telecom prime contractors for supplier qualification and is available on request.
The same flange-mount connector family is offered across BNC, TNC, N-type, SMA, and other series, allowing procurement teams to standardize on a single supplier for all RF panel port requirements across a product line—simplifying vendor management and annual supplier audits.
Factory established in 1999 with continuous production of TNC connectors means field-proven tooling and process knowledge, reducing the risk of dimensional drift that newer suppliers may introduce as they ramp production.

Typical Applications 
Military communication shelter and command-post RF panel ports
Ground-based radar and electronic warfare system equipment racks
Shipborne navigation and communication system antenna distribution panels
Cellular and private mobile radio (PMR) base station outdoor cabinet RF ports
Satellite ground terminal IF and RF distribution panels

FAQ
Q: What is the standard panel cutout diameter for TNC single-hole bulkhead, and how does the flange version differ?
A: Standard TNC bulkhead requires a 12.7 mm (0.500") panel hole. The flange version uses the same through-body diameter but adds the bolt-pattern flange, which requires additional clearance area around the central hole for the mounting bolts. Flange dimensions and bolt pattern drawings are available in the product datasheet.
Q: Can flange versions be supplied with an integrated DC block (capacitive isolation)?
A: DC-isolated flange versions are available as a configured special. The isolation capacitor is integrated into the connector body, providing DC isolation while passing RF signals from DC to 11 GHz. Specify DC block requirement and minimum isolation voltage when ordering.
Q: What torque should be applied to the flange mounting bolts?
A: Mounting bolt torque depends on the bolt size and panel material; typical values for M3 stainless bolts into aluminum panels are 0.5–0.8 N·m. Connector mating torque for the TNC thread remains 1.0–1.36 N·m regardless of the flange mounting style.

Temperature Range

-55~+155℃

Impedance

50Ω

Frequency Range

DC~11GHz

Insulation resistance

≥5000MΩ

Insertion loss

≤0.20 dB/1GHz

VSWR

Straight ≤1.22/3GHz

Right angle

≤1.30/3GHz

Durability(mating)

≥500 (cycles)

About
Yangzhou Jingcheng Electronics Co., Ltd.
Yangzhou Jingcheng Electronics Co., Ltd.

Yangzhou Jingcheng Electronics Co., Ltd., a premier China TNC Connectors Flange Mount Connectors Manufacturer and TNC Connectors Flange Mount Connectors Supplier, was founded in 1999. It is a high-tech enterprise specializing in the R&D and manufacturing of RF coaxial connectors, cable assemblies, and passive microwave components.
Equipped with a comprehensive R&D and production system, the company has obtained international certifications including ISO9001. Adhering strictly to standards such as MIL, IEC and GB, we offer over 30 product series with more than 2,000 specifications, covering SMA, BNC, N-type and other mainstream models. Our products are widely applied in the fields of communications, aerospace, automotive electronics and beyond, and exported to many countries and regions across Europe, America and Asia.
We uphold the tenet of "Quality as the Foundation, Customers as the Core", committed to providing reliable interconnection solutions and professional services for global clients.

TNC Connectors Flange Mount Connectors Industry knowledge

TNC Connectors Flange Mount Connectors combine the threaded mating interface of the TNC series with a flange base for fixed installation on equipment panels, chassis walls, or module housings. Rather than relying on a single mounting nut, TNC Connectors Flange Mount Connectors are secured to the panel through screw holes in the flange while the front-facing interface still uses the threaded coupling nut for cable mating, giving the mounting point two independent points of mechanical security. This connector type is typically specified where a panel-level RF port must remain fixed in place while also accepting a threaded, vibration-resistant cable connection at the front.

Structural Features and Core Performance

  • Flange fixation: A flat flange base with two or four mounting holes secures the connector body to the panel using screws, independent of the front mating interface.
  • Threaded mating retained: The front interface keeps the TNC threaded coupling nut, so the flange-mounted connector still benefits from vibration-resistant cable mating at the panel surface.
  • Rear termination options: Solder cup, solder post, or crimp termination on the rear side connects the flange-mounted body to internal wiring, internal cable, or a circuit board.
  • Grounding path: The flange contact area with the panel provides a defined grounding and shielding reference between the connector shell and the equipment chassis.
  • Sealing provision: A gasket can typically be added between the flange and panel surface to reduce dust and moisture entry at the mounting point.

Common Types and Characteristics

TNC Connectors Flange Mount Connectors are typically grouped by flange hole pattern and rear termination style.

Common types of TNC flange mount connectors and their characteristics
Type Flange Pattern Rear Termination Typical Use
2-Hole Flange Mount Two screw holes, compact footprint Solder cup / solder post General panel-mount RF ports
4-Hole Flange Mount Four screw holes, higher rigidity Solder cup / solder post Equipment subject to vibration or repeated handling
PCB Flange Mount Square or rectangular, board-aligned PCB solder pin Direct board-to-panel signal transition
Sealed Flange Mount 2 or 4-hole with gasket groove Solder cup with rear seal option Outdoor or weather-exposed panels

Application Scenarios

  • Panel-mounted RF ports on vehicle-mounted and mobile communication equipment;
  • Fixed antenna feed interfaces on outdoor base station and remote radio unit enclosures;
  • Instrument and test equipment rear panels requiring a threaded, secure RF port;
  • Military and aerospace enclosures where both panel fixation and vibration-resistant mating are required;
  • Rack-mounted communication modules with a defined, board- or wire-connected RF interface point.

Selection Guidelines

  1. Flange hole pattern: Confirm whether a 2-hole or 4-hole flange is required based on the panel cutout design and the mechanical rigidity needed for the installation.
  2. Rear termination: Select solder cup, solder post, or PCB pin termination according to how the connector interfaces with internal wiring or a circuit board.
  3. Sealing requirement: For outdoor or exposed panels, check whether a gasket groove or sealing option is available at the flange-to-panel interface.
  4. Panel thickness and clearance: Verify that the connector length and flange dimensions are compatible with the panel thickness and internal space available.
  5. Vibration exposure: Where the mounted equipment is subject to vibration, the combination of flange fixation and threaded front mating in TNC Connectors Flange Mount Connectors is a relevant factor to evaluate against bayonet-style panel connectors.

Flange Mount vs Bulkhead Nut Mount

Comparison between flange mount and bulkhead nut mount TNC connectors
Comparison Item Flange Mount Bulkhead Nut Mount
Fixing method Screws through flange holes Single mounting nut
Panel cutout shape Rectangular or square with screw holes Round hole
Mechanical rigidity Higher, multiple fixing points Moderate, single fixing point
Typical application Equipment requiring higher mounting stability General panel penetration points

Frequently Asked Questions

Q1: How does a TNC flange mount connector differ from a TNC bulkhead nut-mount connector?

A flange mount connector is fixed to the panel using screws through a flat flange base, while a bulkhead nut-mount connector is secured with a single mounting nut around a threaded body passing through a round panel cutout. The flange design generally provides more fixing points for the same panel location.

Q2: Does the flange design affect the threaded mating interface at the front of the connector?

The flange is a separate mechanical fixing structure at the rear or base of the connector, while the front mating interface still uses the standard TNC threaded coupling nut, so the mating behavior with a cable-mount TNC connector remains unchanged.

Q3: Is a gasket required for TNC Connectors Flange Mount Connectors installed outdoors?

For outdoor or weather-exposed panels, a gasket at the flange-to-panel interface is generally recommended to reduce dust and moisture ingress, particularly where the connector is not otherwise sealed.

Q4: How is the rear termination style chosen for a flange mount TNC connector?

The rear termination is selected based on how the connector interfaces internally: solder cup or solder post for wired connections, or a PCB pin design when the connector is mounted adjacent to a circuit board.

Manufacturing Note

Yangzhou Jingcheng Electronics Co., Ltd was founded in 1999 and specializes in the design, development, production, and sales of RF coaxial connectors, covering BNC, TNC, N, SMA, 2.92, 2.4, 1.85, and other series, together with related Adapters and cable assemblies. For TNC Connectors Flange Mount Connectors, flange hole alignment and thread dimension consistency are relevant factors in panel-mount reliability, supported by the company's manufacturing equipment and precision testing processes.