ample-chip ample-chip
RFQ
BOM

Coaxial Connectors (RF)

Image Part Number Description / PDF Quantity Rfq
31-236

31-236

Connex (Amphenol RF)

CONN BNC RCPT STR 50 OHM SOLDER

5465
112526

112526

Connex (Amphenol RF)

CONN BNC PLUG R/A 50 OHM SOLDER

279
132296

132296

Connex (Amphenol RF)

CONN SMA PLUG STR 50 OHM SOLDER

451
901-9881-RFX

901-9881-RFX

Connex (Amphenol RF)

CONN SMA PLUG R/A 50 OHM SOLDER

49
031-70526-13

031-70526-13

Connex (Amphenol RF)

CONN BNC RCPT STR 75OHM EDGE MNT

393
132178

132178

Connex (Amphenol RF)

CONN SMA PLUG STR 50 OHM SOLDER

2580
031-70259

031-70259

Connex (Amphenol RF)

CONN MINI BNC PLG STR 75 OHM

0
919-226J-71P

919-226J-71P

Connex (Amphenol RF)

CONN MCX RCPT STR 75 OHM SMD

0
919-386P-51S

919-386P-51S

Connex (Amphenol RF)

CONN MCX PLUG STR 50 OHM CRIMP

584
031-71063

031-71063

Connex (Amphenol RF)

CONN TNC JACK STR 75 OHM PCB

77
82-5589-RFX

82-5589-RFX

Connex (Amphenol RF)

CONN N TWIN PLUG STR SOLDER

45
903-284P-52S

903-284P-52S

Connex (Amphenol RF)

CONN SMC PLUG STR 50 OHM SOLDER

47
901-9610-3SF

901-9610-3SF

Connex (Amphenol RF)

CONN SMA JACK STR 50 OHM SOLDER

87
262107-10

262107-10

Connex (Amphenol RF)

CONN MMCX JACK STR 50OHM EDGEMNT

0
262123

262123

Connex (Amphenol RF)

CONN MMCX JACK STR 50OHM SOLDER

77
FA1-NASJ-C04-0

FA1-NASJ-C04-0

Connex (Amphenol RF)

CONN FAKRA JACK STR 50 OHM CRIMP

83
31-71032

31-71032

Connex (Amphenol RF)

CONN BNC PLUG STR 75 OHM CRIMP

175
919-418J-71P12G

919-418J-71P12G

Connex (Amphenol RF)

MCX EDGE MOUNT PCB JACK, 12G OPT

56
132105

132105

Connex (Amphenol RF)

CONN SMA JACK STR 50 OHM SOLDER

153
112134

112134

Connex (Amphenol RF)

CONN BNC PLUG STR 50 OHM CRIMP

129

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.

RFQ BOM Call Skype Email
Top