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SMA Flange Mount Connectors Custom

Home / Products / Coaxial Connectors / SMA RF Coaxial Connectors / SMA Flange Mount Connectors

Yangzhou Jingcheng Electronics Co., Ltd.
  • Coaxial Connectors
  • Coaxial Lightning Protector
  • Reverse Polarity Connectors
Yangzhou Jingcheng Electronics Co., Ltd.
Yangzhou Jingcheng Electronics Co., Ltd.

SMA Flange Mount Connectors Manufacturer

Product Introduction:
This type of connector typically features a 2-hole or 4-hole flange for secure mounting on equipment panels, serving as an external signal input/output interface.

Product Features:
Secure mechanical mounting: The flange structure, combined with screw fastening, can withstand high torque during mating and unmating.
Sealing performance: Optional models with O-ring seals are available, achieving IP67/IP68 waterproof and dustproof ratings.
Various contact types: Offers multiple termination options, including solder cup, pin type, socket type, and terminal post.

Application Advantages:
Easy integration: Standard flange dimensions allow convenient modular installation on various RF enclosures and amplifier housings.
Long-term reliability: Suitable for use in high-vibration environments such as communication base stations and military electronic equipment.

Temperature Range

-55～+155℃(PE Cable   -40～+85℃)

Frequency Range

DC～12.4GHz(Semi-Rigid Cable  DC~18GHz)

Insulation resistance

≥5000MΩ

Insertion loss

≤0.15 dB/6GHz

Voltage Standing Wave Ratio (VSWR)

Straight Flexible cable≤1.10+0.02f

Semi-Rigid Cable≤1.07+0.018f

Right angle Flexible cable≤≤1.20+0.03f   

Semi-Rigid Cable≤≤1.17+0.02f

Durability(mating)

≥500 cycles

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

Yangzhou Jingcheng Electronics Co., Ltd., a premier China SMA Flange Mount Connectors Manufacturer and SMA 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.

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SMA Flange Mount Connectors Industry knowledge

SMA Flange Mount Connectors represent a robust subset of subminiature coaxial interfaces designed for secure, semi-permanent integration onto panels, enclosures, and printed circuit boards. A defining characteristic of these components is the combination of the threaded 1/4-36 UNS coupling mechanism with a flat metallic baseplate, which is fastened via screws. This structural design ensures exceptional mechanical stability and consistent electrical grounding in high-vibration or mobile environments. Standardized electrical parameters across these SMA Flange Mount Connectors include a characteristic impedance of 50 ohms, a broadband frequency response typically ranging from DC to 18 GHz (with extended precision designs reaching up to 26.5 GHz), and low broadband VSWR. Engineered by manufacturers such as Yangzhou Jingcheng Electronics Co., Ltd., these connectors are fabricated to align with MIL-STD-348 interface requirements, providing a reliable interconnection solution for RF systems.

The operational integrity of SMA Flange Mount Connectors relies on precision-machined components, including gold-plated beryllium copper center contacts and PTFE dielectric insulators. By eliminating the variable strain associated with cable-to-cable junctions, the flange mount configuration guarantees a fixed impedance path that minimizes insertion loss and phase instability. Products manufactured by Yangzhou Jingcheng Electronics Co., Ltd. undergo rigorous testing to verify VSWR, insulation resistance, and dielectric withstanding voltage, ensuring long-term reliability in critical communication links.

Common Types and Characteristics

Type Configuration Key Characteristics
2-Hole Flange Connector Standard rectangular base Provides balanced mechanical clamping force with minimal footprint. Ideal for tight spaces.
4-Hole Flange Connector Square base with four screw cutouts Designed for high-pressure sealing or larger panel surfaces. Enhanced protection against rotational torque.
Bulkhead Flange Connector Extended neck with threaded body Acts as a feedthrough for enclosures. Facilitates connection through walls while maintaining shield integrity.
End-Launch Flange Connector Pin/contact oriented parallel to the board Optimized for PCB signal injection. Minimizes signal reflections at the board transition point.

Performance Comparison

Parameter SMA Flange Mount Standard SMA Straight SMB Snap-On
Coupling Mechanism Screw-on (Threaded) Screw-on (Threaded) Snap-on
Mounting Type Panel/PCB Screw-down Cable/Crimp PCB/Cable
Frequency Range DC - 18 GHz (Typ.) DC - 18 GHz (Typ.) DC - 4 GHz
Mechanical Stability High (Vibration resistant) Moderate (Cable dependent) Low-Moderate
Durability 500 mating cycles 500 mating cycles 100 mating cycles

Application Scenarios

  • Wireless Infrastructure: Integration into Base Transceiver Station (BTS) remote radio heads and antenna feeders where structural rigidity prevents signal degradation.
  • Test & Measurement Equipment: Front-panel interfaces on Vector Network Analyzers (VNAs) and spectrum analyzers requiring highly repeatable connections.
  • Aerospace & Defense: Secure mounting in radar systems, GPS modules, and avionics enclosures where resistance to shock and vibration is critical.
  • Medical Devices: MRI coils and diagnostic imaging equipment that utilize shielded RF connections to maintain data integrity.
  • Industrial IoT Gateways: Ruggedized routers and edge computing nodes requiring external antennas mounted on robust flanged interfaces.

Selection Guide: Key Considerations

  • Panel Thickness and Cutout: Verify the maximum panel thickness compatibility. Mismatches may prevent the nut from fully engaging or the flange from sitting flush.
  • Flange Pattern (2-Hole vs. 4-Hole): Determine the screw hole pattern. A 2-hole flange provides standard retention, while a 4-hole flange distributes clamping force for larger, heavier structures or hermetic sealing requirements.
  • Frequency and VSWR Requirements: For signals above 18 GHz, select precision-grade connectors with optimized dielectric support geometries and tighter concentricity tolerances.
  • Environmental Sealing: If exposure to moisture or dust is expected, specify flange connectors with an O-ring gasket or IP-rated sealing. The comprehensive catalog from Yangzhou Jingcheng Electronics includes sealing options for harsh outdoor environments.
  • Material Plating: Select between stainless steel for industrial corrosion resistance or brass with gold/nickel plating for optimal conductivity in precision instruments.

Frequently Asked Questions (FAQ)

No. Question Answer
1 What distinguishes a flange mount SMA from a standard SMA connector? The primary distinction lies in the mounting interface. Flange mount SMAs feature a flat baseplate with screw holes for direct attachment to panels or PCBs, providing superior mechanical rigidity and grounding compared to in-line cable crimp or clamp SMA types.
2 Are these connectors available in reverse polarity (RP-SMA) variants? Yes, reverse polarity configurations are standard. Yangzhou Jingcheng Electronics Co., Ltd. offers both standard polarity and reverse polarity SMA Flange Mount Connectors, commonly used in wireless networking equipment to maintain interface compliance.
3 How is the connector interface compliant with industry standards? The mechanical dimensions of these connectors adhere to MIL-STD-348. The electrical characteristics, including 50-ohm impedance and operating voltage ratings, meet the requirements of IEC 60169-15.
4 Can flange mount connectors handle higher frequencies? While standard designs operate effectively to 18 GHz, precision-grade flange mount connectors can operate up to 26.5 GHz. This is achieved through tighter dimensional tolerances and improved dielectric support.
5 What is the recommended torque for mounting screws? Proper torque depends on screw size and panel material. A general guideline is 3-5 in-lbs for standard M2 or 2-56 UNC screws to avoid panel warping or thread stripping while ensuring solid electrical contact.