Circular Connectors

Image Part Number Description / PDF Quantity Rfq
1224770000

1224770000

Weidmuller

CONN MALE INSERT 9POS SOLDER

20

2422960000

2422960000

Weidmuller

CONN FMALE INSERT 4POS GOLD SLDR

0

1803860000

1803860000

Weidmuller

CONN PLUG MALE 3POS GOLD SCREW

10245

2422600000

2422600000

Weidmuller

CONN MALE INSERT 5POS GOLD SLDR

0

1224590000

1224590000

Weidmuller

CONN FMALE INSERT 12POS SOLDER

17

2421990000

2421990000

Weidmuller

CONN MALE INSERT 5POS GOLD SLDR

0

1224690000

1224690000

Weidmuller

CONN FMALE INSERT 17POS SOLDER

13

2423090000

2423090000

Weidmuller

CONN RCPT MALE 4POS GOLD SOLDER

0

2422640000

2422640000

Weidmuller

CONN RCPT MALE 5POS GOLD SOLDER

0

1784040001

1784040001

Weidmuller

CONN PLUG MALE 3POS TIN IDC

18

2424060000

2424060000

Weidmuller

CONN FMALE INSERT 5POS GOLD SLDR

0

2424080000

2424080000

Weidmuller

CONN RCPT MALE 4POS GOLD SOLDER

0

2423880000

2423880000

Weidmuller

CONN FMALE INSERT 4POS GOLD SLDR

0

9457290000

9457290000

Weidmuller

CONN RCPT MALE 4POS SCREW

111

1224080000

1224080000

Weidmuller

CONN FMALE INSERT 7P SOLDER CUP

19

1224280000

1224280000

Weidmuller

CONN FMALE INSERT 16POS SOLDER

13

2423960000

2423960000

Weidmuller

CONN RCPT MALE 4POS GOLD SOLDER

0

1224250000

1224250000

Weidmuller

CONN FMALE INSERT 16P SOLDER CUP

24

2421870000

2421870000

Weidmuller

CONN MALE INSERT 4POS GOLD SLDR

0

1224760000

1224760000

Weidmuller

CONN FMALE INSERT 9POS SOLDER

20

Circular Connectors

1. Overview

Circular connectors are multi-pin electrical connectors with circular contact arrangements, designed for reliable signal/power transmission in harsh environments. They feature robust mechanical structures, environmental sealing, and high mating durability. These connectors are critical in aerospace, industrial automation, and medical equipment where vibration resistance and signal integrity are paramount.

2. Main Types & Functional Classification

TypeFunctional CharacteristicsApplication Examples
MIL-DTL-38999High-density, threaded coupling, EMI shieldingAerospace systems, military vehicles
USB Type-CReversible design, 10Gbps data rate, 100W power deliverySmartphones, laptops, PDAs
BNCBayonet locking, 2GHz frequency rangeTest equipment, video systems
LVDT CircularLinear variable differential transformer integrationIndustrial sensors, robotics

3. Structure & Components

Typical construction includes: - Shell: Aluminum alloy/zinc die-cast housing with corrosion-resistant plating - Contacts: Gold-plated phosphor bronze with 0.5-2.0mm diameter - Insulation: High-temperature thermoplastic (200 C rating) - Sealing: IP67/IP68 rated elastomer gaskets - Mounting: Threaded/flange/clamp mechanisms

4. Key Technical Parameters

ParameterTypical RangeImportance
Voltage Rating50V-600VDetermines power transmission capacity
Current Rating1A-25A/contactAffects thermal performance
Contact Resistance 5m Impacts signal integrity
IP RatingIP40-IP68Defines environmental protection level
Operating Temp-65 C to +200 CMaterial stability indicator
Mating Cycles500-10,000Service life predictor

5. Application Fields

  • Aerospace: Flight control systems, satellite antennas
  • Industrial: CNC machines, automated guided vehicles
  • Medical: MRI scanners, patient monitoring systems
  • Telecom: 5G base stations, fiber optic networks
  • Consumer: VR headsets, gaming peripherals

6. Leading Manufacturers

ManufacturerKey ProductsSpecial Features
AmphenolMIL-DTL-38999 seriesComposite materials, EMI filtering
TE ConnectivityDEUTSCH D38999Thermoplastic housing, 2000V dielectric
MolexUSB Type-C 10GbpsShielded twinax design
DelphiAutomotive circular connectorsIP69K rating for EV charging
LemoPush-pull circular seriesSubminiature, 5000+ mating cycles

7. Selection Guidelines

Key considerations: 1. Environmental factors: Temperature extremes, fluid exposure 2. Electrical requirements: Signal type (analog/digital), current load 3. Mechanical constraints: Panel space, mating force limitations 4. Compliance standards: MIL-STD, ISO 6722, RoHS 5. Cost vs. longevity: High-cycle applications justify premium connectors

8. Industry Trends

Emerging developments include: - Miniaturization: 1.0mm contact pitch enabling wearable devices - High-speed transmission: 25Gbps+ differential pairs for industrial IoT - Smart connectors: Integrated sensors for condition monitoring - Material innovation: Graphene-coated contacts reducing resistance - Eco-design: Halogen-free thermoplastics meeting REACH regulations

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