English
中文简体TNC PCB Connectors Manufacturer
Product Overview
TNC PCB Connectors mount directly to a printed circuit board—either through-hole soldered or surface-mount reflow—eliminating the pigtail cable between board and panel connector that adds cost, insertion loss, and a potential failure point to every RF signal path exiting the board. This direct board integration is the cleanest solution from a signal-integrity standpoint: the RF path transitions from microstrip or stripline on the PCB directly into the TNC connector interface without an intermediate cable transition.
TNC PCB connectors are chosen over SMA PCB connectors—the dominant alternative for 50Ω board-edge RF interfaces—when the application requires the TNC's threaded coupling security in a PCB-mount form factor. This scenario arises in military avionics line-replaceable units (LRUs), vehicle-mounted radio PCBs, and shipborne equipment boards where vibration would work a push-on or bayonet-coupled board connector loose over time. The threaded TNC interface locks the mating cable assembly to the board-mounted connector with measurable, repeatable torque.
Key Features
Through-hole solder mount and surface-mount (SMT, reflow-compatible) footprint options; through-hole versions provide greater mechanical robustness for high-vibration PCB environments.
Right-angle (edge-launch / horizontal) and vertical (top-launch / upright) orientations; right-angle versions align with the PCB edge for panel-exit cable connections, vertical versions accept a perpendicular mating cable.
Controlled impedance center pin and dielectric geometry ensures 50Ω launch transition from PCB trace to connector, preserving signal integrity for designs operating to 11 GHz.
PCB land pattern dimensions compliant with IEC 169-16 and consistent with common EDA library standards; STEP 3D models available for PCB mechanical design integration.
Additional solder tail anchoring pins or screw-mount flanges available on selected versions to reinforce the solder joint against cable pull-out forces—important when the PCB connector also serves as the mechanical cable strain relief.
Lead-free, RoHS-compliant solder terminations; compatible with standard IPC J-STD-001 lead-free assembly processes and peak reflow temperatures to 260°C.
Competitive Advantages
Jingcheng's engineering team can provide RF board-launch consultation as part of the design-in process: reviewing PCB stackup, trace geometry, and via structures at the connector transition to identify and resolve impedance mismatch before board fabrication. This reduces the number of PCB re-spins required to meet RF performance targets—a meaningful cost saving on complex multi-layer RF boards.
STEP 3D models and Gerber-compatible land pattern data are available for standard catalogue variants, integrating seamlessly into customer PCB layout workflows without additional mechanical drawing translation work.
SMT reel packaging is available for high-volume PCB assembly line consumption. Tape-and-reel component orientation and pocket dimensions are documented in the packaging specification, simplifying SMT machine programming.
Jingcheng's 25+ years of TNC connector manufacturing means PCB-mount variant tooling is mature and stable—board designers can rely on dimensional consistency between NPI samples and volume production components, avoiding the process-control issues that can arise with newer suppliers.
Typical Applications
Military avionics LRU RF interface boards requiring locked cable connections under vibration
Vehicle-mounted radio and tactical communication module PCBs
Shipborne radar signal processor and receiver front-end boards
Microwave transceiver modules for wireless infrastructure equipment
Industrial wireless sensor nodes and condition monitoring systems operating in the microwave spectrum
RF test fixture boards and calibration standard assemblies
FAQ
Q: What PCB thickness is supported for through-hole TNC PCB connectors?
A: Standard solder tail lengths target 1.6 mm PCB thickness. Extended tail lengths for 2.4 mm and 3.2 mm boards are available as configured variants. Specify the PCB thickness and layer count in your inquiry; the engineering team will confirm the appropriate tail geometry.
Q: Can TNC PCB connectors be used in a conformal-coated assembly?
A: Yes. Standard TNC PCB connectors are compatible with selective conformal coating processes where the coating is masked from the RF interface mating surfaces. Full-immersion coating is not recommended as it can compromise the mating thread and center contact. Please consult with your conformal coating applicator for masking procedures.
Q: Is there a significant performance difference between right-angle and vertical PCB mount versions?
A: Vertical (upright) versions generally offer slightly better VSWR performance at frequencies above 6 GHz because the signal path through the connector is more linear. Right-angle versions introduce a 90° transmission line bend that creates a minor impedance perturbation, resulting in a slightly elevated VSWR approaching the upper frequency limit. For applications below 6 GHz, both orientations perform equivalently within the product specification.
Q: How does Jingcheng validate PCB connector RF performance at the end of the production process?
A: TNC PCB connectors are subject to dimensional inspection of critical interface features (center pin diameter, dielectric length, outer conductor bore) on every production lot. Statistical sampling of soldered assemblies is measured on Agilent vector network analyzers for insertion loss and VSWR. Full inspection records are retained and available to customers as part of the incoming quality data package.
Q: Are reverse-polarity (RP-TNC) versions available in PCB mount configurations?
A: Yes. RP-TNC PCB mount connectors in both right-angle and vertical orientations are available. RP-TNC PCB connectors are used in WiFi access point and router board designs where the antenna port is required to be RP-TNC per regulatory antenna-locking conventions. Please specify RP when placing your order or sample request.
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Temperature Range |
-55～+155℃ |
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Impedance |
50Ω |
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Frequency Range |
DC～11GHz |
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Insulation resistance |
≥5000MΩ |
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Insertion loss |
≤0.20 dB/1GHz |
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VSWR |
Straight ≤1.22/3GHz |
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Right angle |
≤1.30/3GHz |
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Durability(mating) |
≥500 (cycles) |
