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Coaxial Connectors (RF)

Image Part Number Description / PDF Quantity Rfq
CONSMA002

CONSMA002

Linx Technologies

CONN SMA RCPT R/A 50 OHM PCB

7742
CONSMA012-R178

CONSMA012-R178

Linx Technologies

CONN SMA PLUG R/A 50 OHM SOLDER

950
CONSMA007-R178

CONSMA007-R178

Linx Technologies

CONN SMA PLUG STR 50 OHM SOLDER

712
CONSMA019-G

CONSMA019-G

Linx Technologies

SMA FML R/A 4-HOLE FLANGE, GOLD

926
CONSMA006.031

CONSMA006.031

Linx Technologies

CONN SMA RCPT STR 50OHM EDGE MNT

86
CONSMA003.031-L

CONSMA003.031-L

Linx Technologies

CONN SMA RCPT STR 50OHM EDGE MNT

347
CONREVSMA014

CONREVSMA014

Linx Technologies

CONN RPSMA RCPT STR 50OHM SOLDER

640
CONSMA013.031-G

CONSMA013.031-G

Linx Technologies

SMA MALE BOARD EDGE, MNT 0.031"

750
CONSMA022-G

CONSMA022-G

Linx Technologies

SMA FML THROUGH, EDGE MNT R/A

4913
CONREVSMA001

CONREVSMA001

Linx Technologies

CONN RP-SMA RCPT STR 50 OHM PCB

2437
CONSMA003.031-G

CONSMA003.031-G

Linx Technologies

CONN SMA RCPT STR 50OHM EDGE MNT

352
CONREVSMA007

CONREVSMA007

Linx Technologies

CONN RPSMA PLUG STR 50OHM SOLDER

3007
CONSMA006.062-G

CONSMA006.062-G

Linx Technologies

CONN SMA RCPT STR 50OHM EDGE MNT

1784
CONMCX013

CONMCX013

Linx Technologies

CONN MCX RCPT STR 50OHM EDGE MNT

500
CONMMCX013

CONMMCX013

Linx Technologies

CONN MMCX JACK STR 50OHM EDGE MN

1000
CONREVSMA011-R178

CONREVSMA011-R178

Linx Technologies

CONN RPSMA RCPT STR 50OHM SOLDER

0
CONREVSMA012-R178

CONREVSMA012-R178

Linx Technologies

CONN RPSMA PLUG R/A 50OHM SOLDER

0
CONSMA002-SMD-G-T

CONSMA002-SMD-G-T

Linx Technologies

CONN SMA REC R/A T&R

3909
CONSMA024-G

CONSMA024-G

Linx Technologies

CONN SMA JACK STR 50OHM EDGE MNT

983
CONSMB001-1-G

CONSMB001-1-G

Linx Technologies

CONN SMB JACK STR 50 OHM PCB

2000

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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