Circular Connectors

Image Part Number Description / PDF Quantity Rfq
UCOMUSB3LCUGA

UCOMUSB3LCUGA

Socapex (Amphenol Pcd)

CONN RCPT FMALE 8POS CRIMP

10

612251

612251

Socapex (Amphenol Pcd)

OCTOMAX 1G26 CRIMP PIN

0

SJS861101

SJS861101

Socapex (Amphenol Pcd)

CONN PLUG FMALE 10POS GOLD CRIMP

0

TVP00UCOMUSB3SF11S

TVP00UCOMUSB3SF11S

Socapex (Amphenol Pcd)

CONN RCPT FMALE 8POS SOLDER CUP

10

SJS716211

SJS716211

Socapex (Amphenol Pcd)

CONN RCPT MALE 1POS GOLD CRIMP

0

SJS830411

SJS830411

Socapex (Amphenol Pcd)

CONN PLUG FMALE 4POS GOLD CRIMP

0

62GB11F1006SN

62GB11F1006SN

Socapex (Amphenol Pcd)

CONN RCPT FMALE 6POS GOLD

0

UCOMUSB3PTCGGA

UCOMUSB3PTCGGA

Socapex (Amphenol Pcd)

CONN PLUG MALE 8POS CRIMP

0

UCOM10G+RCG

UCOM10G+RCG

Socapex (Amphenol Pcd)

CONN RCPT FMALE 8POS GOLD CRIMP

0

SJS830331

SJS830331

Socapex (Amphenol Pcd)

CONN RCPT MALE 3POS GOLD CRIMP

0

TVP00UCOMUSB3SW11S

TVP00UCOMUSB3SW11S

Socapex (Amphenol Pcd)

CONN RCPT FMALE 8POS SOLDER CUP

10

SJS850901

SJS850901

Socapex (Amphenol Pcd)

CONN RCPT MALE 9POS GOLD CRIMP

0

SJS850511

SJS850511

Socapex (Amphenol Pcd)

CONN PLUG FMALE 5POS GOLD CRIMP

0

UCOMUSB3PPSGB

UCOMUSB3PPSGB

Socapex (Amphenol Pcd)

CONN PLUG MALE 8POS SOLDER CUP

10

SJS831202

SJS831202

Socapex (Amphenol Pcd)

CONN RCPT MALE 8POS GOLD CRIMP

0

SJS512101

SJS512101

Socapex (Amphenol Pcd)

CONN PLUG FMALE 1POS GOLD CRIMP

0

SJS850911

SJS850911

Socapex (Amphenol Pcd)

CONN PLUG FMALE 9POS GOLD CRIMP

0

SJS512111

SJS512111

Socapex (Amphenol Pcd)

CONN PLUG FMALE 1POS GOLD CRIMP

0

SJS840321

SJS840321

Socapex (Amphenol Pcd)

CONN RCPT MALE 3POS GOLD CRIMP

0

62GB12E1006SN

62GB12E1006SN

Socapex (Amphenol Pcd)

CONN RCPT FMALE 6POS GOLD

0

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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