ample-chip ample-chip
RFQ
BOM

Coaxial Connectors (RF)

Image Part Number Description / PDF Quantity Rfq
132203RP

132203RP

Connex (Amphenol RF)

CONN RP-SMA JACK R/A 50 OHM PCB

2489
903-505J-51S

903-505J-51S

Connex (Amphenol RF)

CONN SMB JACK STR 50 OHM CRIMP

0
122210

122210

Connex (Amphenol RF)

CONN TNC JACK STR 50 OHM CRIMP

126
082-6157

082-6157

Connex (Amphenol RF)

CONN N PLUG R/A 50 OHM SOLDER

35
903-368P-51A1

903-368P-51A1

Connex (Amphenol RF)

CONN SMB PLUG R/A 50 OHM SOLDER

10
SMP-MSLD-PCS11T

SMP-MSLD-PCS11T

Connex (Amphenol RF)

RF CONNECTOR SMP STRAIGHT PCB LI

0
034-5037

034-5037

Connex (Amphenol RF)

HD-BNC STRAIGHT PCB JACK, EDGE M

181
FA1-NCRP-PCB-8

FA1-NCRP-PCB-8

Connex (Amphenol RF)

CONN FAKRA PLUG R/A 50 OHM PCB

4613
112981

112981

Connex (Amphenol RF)

CONN BNC PLUG STR 75 OHM CRIMP

0
222168

222168

Connex (Amphenol RF)

CONN F JACK STR 75OHM SOLDER

0
112565

112565

Connex (Amphenol RF)

CONN BNC PLUG STR 75 OHM CRIMP

129
252145

252145

Connex (Amphenol RF)

CONN MCX JACK STR 50 OHM SOLDER

52
3FA1-NESJ-C04W0

3FA1-NESJ-C04W0

Connex (Amphenol RF)

FAKRA STRAIGHT CRIMP JACK FOR RG

0
031-221-75RFX

031-221-75RFX

Connex (Amphenol RF)

CONN BNC RCPT STR 75 OHM SOLDER

1171
122374

122374

Connex (Amphenol RF)

CONN TNC JACK STR 50 OHM CRIMP

1
142255

142255

Connex (Amphenol RF)

CONN SMB PLUG STR 50 OHM SOLDER

36
034-1099

034-1099

Connex (Amphenol RF)

CONN HDBNC JACK STR 75 OHM PCB

296
172234-11

172234-11

Connex (Amphenol RF)

N RIGHT ANGLE PCB JACK, THROUGH

90
172395

172395

Connex (Amphenol RF)

CONN N PLUG STR 50OHM CRIMP

517
132235RP

132235RP

Connex (Amphenol RF)

CONN RPSMA PLUG R/A 50OHM SOLDER

159

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