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Coaxial Connectors (RF)

Image Part Number Description / PDF Quantity Rfq
CONREVSMA001-SMD

CONREVSMA001-SMD

Linx Technologies

CONN RP-SMA RCPT STR 50 OHM SMD

0
CONREVMCX001-SMD

CONREVMCX001-SMD

Linx Technologies

CONN RP-MCX RCPT STR 50 OHM SMD

0
CONSMB006-G

CONSMB006-G

Linx Technologies

CONN SMB PLUG STR 50 OHM PCB

999
CONSMA013.062

CONSMA013.062

Linx Technologies

CONN SMA PLUG STR 50OHM EDGE MNT

1017
CONMCX003.031

CONMCX003.031

Linx Technologies

CONN MCX RCPT STR 50OHM EDGE MNT

322
CONN007-4-W

CONN007-4-W

Linx Technologies

CONN N PLUG STR 50 OHM CRIMP

500
CONSMA003.031

CONSMA003.031

Linx Technologies

CONN SMA RCPT STR 50OHM EDGE MNT

404
CONSMB001-SMD-G

CONSMB001-SMD-G

Linx Technologies

CONN SMB JACK STR 50 OHM SMD

2000
CONREVSMA003.062

CONREVSMA003.062

Linx Technologies

CONN RPSMA RCPT STR 50OHM EDGEMT

2646
CONSMA011-R178

CONSMA011-R178

Linx Technologies

CONN SMA RCPT STR 50 OHM SOLDER

477
CONREVSMA006.062SQ

CONREVSMA006.062SQ

Linx Technologies

CONN RPSMA RCPT STR 50OHM EDGEMT

0
CONSMA001-SMD-G-T

CONSMA001-SMD-G-T

Linx Technologies

CONN SMA REC STR T&R

0
CONSMA007-R58

CONSMA007-R58

Linx Technologies

CONN SMA PLUG STR 50 OHM SOLDER

2703
CONMMCX007

CONMMCX007

Linx Technologies

CONN MMCX PLUG STR 50 OHM SOLDER

1119
CONSMA020.062-G

CONSMA020.062-G

Linx Technologies

CONN SMA FML EDGE MNT 0.062" PCB

579
CONMCX007

CONMCX007

Linx Technologies

CONN MCX PLUG STR 50 OHM SOLDER

401
CONREVSMA007-R58

CONREVSMA007-R58

Linx Technologies

CONN RPSMA PLUG STR 50OHM SOLDER

0
CONN013-W

CONN013-W

Linx Technologies

CONN N JACK R/A 50 OHM PCB

477
CONREVSMA012-R58

CONREVSMA012-R58

Linx Technologies

CONN RPSMA PLUG R/A 50OHM SOLDER

1
CONREVSMA013.031

CONREVSMA013.031

Linx Technologies

CONN RPSMA PLG STR 50OHM EDGEMNT

20

Coaxial Connectors (RF)

1. Overview

RF coaxial connectors are electro-mechanical devices designed to transmit radio frequency (RF) signals between components or systems. They maintain signal integrity in coaxial cables by preserving impedance matching and shielding performance. These connectors are critical in telecommunications, aerospace, defense, and test equipment, enabling reliable high-frequency signal transmission up to 110 GHz in modern applications.

2. Main Types and Functional Classification

TypeFunctional FeaturesTypical Applications
BNCBayonet coupling, 50/75 impedance, quick-connectTest instruments, video systems, 10BASE-T Ethernet
N-TypeThreaded coupling, 50 , weatherproofCellular base stations, microwave links, broadcast equipment
SMAThreaded, 0-18 GHz range, compact sizeWi-Fi antennas, GPS modules, RF modules
F-TypeCompression fitting, 75 impedanceCable TV, satellite TV, CATV systems
LCMiniature threaded, low PIM designHigh-density telecom equipment, 5G infrastructure

3. Structure and Components

A typical RF coaxial connector consists of four key elements:

  1. Center Conductor: Precision-machined pin/socket (beryllium copper or phosphor bronze) for signal transmission
  2. Dielectric Insulator: PTFE or ceramic material maintaining 50/75 impedance and spacing
  3. Outer Conductor: Brass or stainless steel shell providing 360 shielding (typical attenuation >80dB)
  4. Connection Mechanism: Threaded (N, SMA), bayonet (BNC), or compression (F-type) interface with anti-rotation features

4. Key Technical Specifications

ParameterDescriptionImportance
Frequency Range0.01-110 GHz (varies by type)Determines maximum usable bandwidth
Impedance50 (standard) or 75 Matches cable/system requirements
VSWR1.2:1 (typical) - 1.5:1 (high-performance)Measures signal reflection efficiency
Insertion Loss0.1-0.5 dB (varies with frequency)Impacts signal strength preservation
Withstanding Voltage500V-3000V ACSafety and insulation capability

5. Application Fields

  • Telecommunications: 5G base stations (N-Type/LC), fiber modems (SC/FC)
  • Military/Aerospace: Radar systems (high-reliability N-Type), avionics (MIL-STD-348 compliant)
  • Test & Measurement: Spectrum analyzers (Precision SMA), oscilloscopes (BNC)
  • Consumer Electronics: Cable TV (F-Type), Wi-Fi routers (RP-SMA)
  • Industrial IoT: Wireless sensors (TNC), RFID readers (MMCX)

6. Leading Manufacturers and Products

ManufacturerKey ProductsSpecial Features
AmphenolSeries 5000 N-TypeIP68 rating, 0-11 GHz
TE ConnectivityDeutsch DMCMilitary-grade vibration resistance
Rosenberger4.3-10 Connector70% smaller than N-Type, 6 GHz
Huber+SuhnerRadiX HybridCombines RF and power in single interface
Southern California RFMini 50High-density SMA alternative

7. Selection Recommendations

Key selection criteria include:

  • Frequency Requirements: BNC ( 4 GHz) vs SMA ( 18 GHz) vs 2.92mm ( 40 GHz)
  • Environmental Factors: Outdoor applications require IP67+ rated N-Type
  • Mechanical Durability: >500 mating cycles for test environments
  • Impedance Matching: 75 for video/cable TV systems
  • Space Constraints: Miniaturized options (MMCX, U.FL) for mobile devices

Case Study: In 5G massive MIMO systems, engineers prefer 4.3-10 connectors over traditional N-Type due to 30% size reduction and improved PIM performance (<-160dBc).

8. Industry Trends

Emerging development directions include:

  • Extreme Frequency: 110 GHz+ connectors for 6G and automotive radar
  • Miniaturization: 1.0mm connectors for wearable IoT devices
  • High-Density Integration: Multi-port arrays with integrated filters
  • Material Innovation: Graphene-enhanced contacts for reduced insertion loss
  • Smart Connectivity: Embedded sensors for real-time VSWR monitoring

Market forecasts indicate a CAGR of 7.2% (2023-2028), driven by 5G expansion and satellite internet demand.

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