BNC PCB Connectors Custom

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BNC PCB Connectors Manufacturer

Product Overview
The BNC PCB (Printed Circuit Board) Connectors are directly mounted to the PCB surface or through-hole plated vias, eliminating the need for a separate cable pigtail between the board and the connector. This integration reduces assembly steps, minimizes parasitic inductance/capacitance from intermediate cable transitions, and frees up space inside the product enclosure.

PCB-mount BNC connectors appear at the edge or interior of the PCB, either as right-angle (edge-launch) types that extend horizontally off the board edge to mate with panel-exit cables, or as vertical (top-launch) types that mate perpendicular to the board plane. Both configurations are engineered to maintain impedance integrity through the PCB transition, which is critical for high-frequency signal integrity.

Key Features
Through-hole and surface-mount (SMT) attachment options: through-hole pin styles for mechanical robustness in high-vibration environments; SMT footprints for reflow-solderable automated PCB assembly lines.
Right-angle (horizontal) and vertical (upright) PCB mount orientations available, providing layout flexibility for both edge-mount and center-board placement.
Controlled impedance center pin and dielectric geometry maintains 50Ω or 75Ω impedance through the PCB launch transition, preserving signal integrity to the board layer stack.
PCB-compatible solder tail geometry with industry-standard land pattern dimensions; Gerber footprint data available on request to accelerate PCB layout.
Flange-mount PCB versions with additional solder tails or screws provide mechanical anchoring to resist cable pull forces that would otherwise stress solder joints.
Operating frequency to 4GHz covers the full BNC-defined band; some selected variants extend performance further for applications approaching this upper limit. 

Competitive Advantages
As an R&D-driven manufacturer with its own engineering technology research center, Jingcheng can support customer PCB layout reviews, providing impedance transition analysis and recommendations to minimize signal reflection at the board launch point—a value-added service rarely offered by pure-trading connector companies.
Product conformance to IEC 169-8 ensures that equipment assembled with Jingcheng PCB BNC connectors passes BNC interface-level interoperability testing with any compliant mating connector, simplifying system integration for OEM customers.
SMT reel packaging available for high-volume PCB assembly line integration; tape-and-reel dimensions and component orientation data provided with the part datasheet.
Lead-free (RoHS) solder-compatible finishes as standard, with full material declarations (IPC-1752) available to support product environmental compliance documentation.

Typical Applications
RF PCBs in wireless communication modules (WiFi, Bluetooth, Zigbee, sub-GHz ISM band)
Test and measurement PCB assemblies requiring front-panel BNC jacks hard-mounted to the board
Industrial IoT sensor boards with direct antenna or cable connections
Medical device PCBs for patient telemetry and physiological monitoring modules
SDR (Software Defined Radio) development boards and prototype RF platforms
Automotive telematics control units requiring compact RF board-edge connectors

FAQ
Q: Are IPC-compatible land pattern drawings and 3D STEP models available for the PCB connectors?
A: Yes. Dimensional drawings and 2D land pattern data are provided with product datasheets. 3D STEP models are available for standard catalogue variants upon written request, typically delivered within 5 business days.
Q: What PCB thickness range is supported by the through-hole variants?
A: Standard PCB through-hole tail lengths are designed for 1.6mm (standard) and 2.4mm PCB thicknesses. Custom tail lengths for other PCB thicknesses (e.g., 3.2mm for power/RF combined boards) can be quoted as engineering specials.
Q: Can the SMT version be soldered in a standard lead-free reflow profile?
A: Yes. All SMT PCB connector variants are designed for standard IPC/JEDEC lead-free reflow profiles (peak temperature 260°C). The PTFE or high-temperature thermoplastic dielectric materials used maintain dimensional stability through the reflow cycle without voiding or delamination.
Q: Is there a right-angle PCB connector with a latching mechanism for secure mating?
A: Standard BNC connectors use the quarter-turn bayonet locking mechanism, which is consistent across all variants including PCB-mount versions. This provides secure mating with tactile engagement confirmation. Alternative retention mechanisms are not standard in the BNC series by IEC specification.
Q: What distinguishes Jingcheng BNC PCB connectors from lower-cost alternatives on the market?
A: The primary differentiators are dimensional precision (controlled by Hanwha CNC machines), plating consistency (monitored through in-house electroplating), and electrical validation (using Agilent network analyzers). These process controls, backed by ISO9001 and GJB9001A certification, deliver connector lots with consistent insertion loss and VSWR across the full production run—not just on the qualification samples.

Temperature Range
-55~+155℃ (PE Cable -40~+85℃)
Impedance
50Ω, 75Ω
Frequency Range
DC~4GHz
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 BNC PCB Connectors Manufacturer and BNC PCB 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.

BNC PCB Connectors Industry knowledge

BNC PCB Connectors are designed to mount directly onto a printed circuit board, providing an RF signal interface at the board level rather than through a cable-to-cable or panel-mounted connection. A BNC PCB Connector combines a BNC mating interface on the mating side with solder pins or surface-mount pads on the board side, allowing the connector to be reflow soldered or through-hole soldered as part of standard PCB assembly. This category of BNC PCB Connectors is used wherever a circuit board needs a direct, board-level RF port for test access, signal input/output, or module interconnection.

Mounting and Core Features

  • Through-hole mounting: Pins pass through drilled holes in the PCB and are wave or hand soldered on the opposite side, providing a mechanically strong board-level joint.
  • Surface-mount (SMT) mounting: Solder pads on the connector base allow reflow soldering directly onto the board surface, suited to automated assembly lines.
  • Orientation options: Available in vertical (right-angle to the board) and horizontal (edge-mount, parallel to the board) configurations depending on the enclosure layout.
  • Ground pin layout: Multiple ground pins or a ground flange are typically included to maintain shielding continuity between the connector body and the board ground plane.
  • Board thickness and footprint: Pin length and footprint pattern are matched to a defined PCB thickness range and pad layout to maintain a consistent mating height and impedance profile.

Common Types and Characteristics

BNC PCB Connectors are generally grouped by mounting orientation and soldering method, which affects the board layout and assembly process.

Common types of BNC PCB connectors and their characteristics
Type Mounting Orientation Soldering Method Typical Use
Vertical Through-Hole 90-degree to board Through-hole, wave solder General test and instrumentation boards
Right-Angle Edge Mount Parallel to board edge Through-hole or SMT Boards with limited vertical clearance
SMT Vertical Mount 90-degree to board Surface-mount, reflow Automated assembly production lines
Panel-to-Board Bracket Mount Fixed via bracket, board-connected Through-hole with mechanical bracket Boards requiring external panel access point

Application Scenarios

  • Test and measurement circuit boards requiring a direct RF access point for calibration or signal monitoring;
  • Video and broadcast equipment boards with onboard signal input/output ports;
  • Module-to-module RF interconnection within multi-board electronic assemblies;
  • Sensor and data acquisition boards used in industrial monitoring systems;
  • Compact instrument designs where a board-mounted connector reduces the need for internal cable jumpers.

Selection Guidelines

  1. Mounting orientation: Determine whether a vertical or right-angle edge-mount configuration is required based on the enclosure layout and available board clearance.
  2. Soldering process compatibility: Select through-hole or SMT versions according to the existing assembly line process, such as wave soldering or reflow soldering.
  3. Footprint and pad layout: Confirm the connector's pin spacing and footprint pattern match the PCB layout, particularly for automated pick-and-place assembly.
  4. Board thickness: Verify the connector's pin length and mating height are suitable for the specific PCB thickness used in the design.
  5. Grounding and shielding: Check that the ground pin layout and ground flange design provide adequate shielding continuity with the board's ground plane for the intended frequency range.

Mounting Type Comparison

Comparison between through-hole and SMT BNC PCB connectors
Comparison Item Through-Hole Mount SMT Mount
Mechanical strength Higher, pins pass through the board Lower, relies on pad adhesion
Assembly process Wave soldering or hand soldering Reflow soldering
Board space usage Requires drilled through-holes Surface pads only, no drilling
Typical use Boards requiring higher mechanical retention Automated high-volume board assembly

Frequently Asked Questions

Q1: What is the difference between vertical and right-angle BNC PCB connectors?

A vertical BNC PCB connector mates at 90 degrees to the board surface, while a right-angle edge-mount version positions the mating interface parallel to the board edge. The choice depends on the available clearance and cable routing direction within the enclosure.

Q2: Can an SMT BNC PCB connector be reworked or replaced after reflow soldering?

Rework of an SMT-mounted connector requires controlled desoldering equipment due to the surface-pad attachment method, whereas a through-hole connector can generally be desoldered and replaced using standard soldering tools.

Q3: How does board thickness affect connector selection?

Connector pin length and standoff height are generally specified for a defined PCB thickness range. Using a board thickness outside this range may affect the mating height and the mechanical fit of the connector on the board.

Q4: Do BNC PCB connectors require additional grounding pins?

Most designs include multiple ground pins or a ground flange to connect the connector shell to the board's ground plane, which supports shielding continuity for the RF signal path.

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, N, TNC, SMA, 2.92, 2.4, 1.85, and other series, supported by high precision testing equipment and established manufacturing processes. For BNC PCB Connectors, footprint accuracy and pin dimension control are relevant factors in board-level assembly, and the company's production capability supports both through-hole and surface-mount configurations according to project requirements.