Circular Connectors

Image Part Number Description / PDF Quantity Rfq
UCOMUSB3PPCUB

UCOMUSB3PPCUB

Socapex (Amphenol Pcd)

CONN PLUG MALE 8POS CRIMP

10

TV06UCOMCZN11P

TV06UCOMCZN11P

Socapex (Amphenol Pcd)

CONN PLUG MALE 8POS GOLD CRIMP

6

SJS840401

SJS840401

Socapex (Amphenol Pcd)

CONN RCPT MALE 4POS GOLD CRIMP

0

UCOMUSB3RSU

UCOMUSB3RSU

Socapex (Amphenol Pcd)

CONN RCPT FMALE 8POS SOLDER CUP

10

SCE2-B-76A07-10ASN-002

SCE2-B-76A07-10ASN-002

Socapex (Amphenol Pcd)

CONN PLUG FMALE 10P SOLDER CUP

0

UCOM10G+RCU

UCOM10G+RCU

Socapex (Amphenol Pcd)

CONN RCPT FMALE 8POS GOLD CRIMP

0

SJS861201

SJS861201

Socapex (Amphenol Pcd)

CONN RCPT MALE 10POS GOLD CRIMP

0

SJS830351

SJS830351

Socapex (Amphenol Pcd)

CONN RCPT MALE 3POS GOLD CRIMP

0

62GB12E1832SN

62GB12E1832SN

Socapex (Amphenol Pcd)

CONN RCPT FMALE 32POS GOLD

0

TV07UCOMCW11S

TV07UCOMCW11S

Socapex (Amphenol Pcd)

CONN RCPT FMALE 8POS GOLD CRIMP

0

SJS820201

SJS820201

Socapex (Amphenol Pcd)

CONN RCPT MALE 3POS GOLD CRIMP

0

SJS816201

SJS816201

Socapex (Amphenol Pcd)

CONN RCPT MALE 3POS GOLD CRIMP

0

SCE2-B-01K07-14PN

SCE2-B-01K07-14PN

Socapex (Amphenol Pcd)

CONN RCPT MALE 14P GOLD SLDR CUP

0

SCE2-B-76A09-26SN-001

SCE2-B-76A09-26SN-001

Socapex (Amphenol Pcd)

CONN PLUG FMALE 26POS GOLD SLDR

0

SJS816121

SJS816121

Socapex (Amphenol Pcd)

CONN PLUG FMALE 3POS GOLD CRIMP

0

SJS860901

SJS860901

Socapex (Amphenol Pcd)

CONN RCPT MALE 9POS GOLD CRIMP

0

SJS820101

SJS820101

Socapex (Amphenol Pcd)

CONN PLUG FMALE 3POS GOLD CRIMP

0

SJS840411

SJS840411

Socapex (Amphenol Pcd)

CONN PLUG FMALE 4POS GOLD CRIMP

0

SJS512211

SJS512211

Socapex (Amphenol Pcd)

CONN RCPT MALE 1POS GOLD CRIMP

0

SJS816211

SJS816211

Socapex (Amphenol Pcd)

CONN RCPT MALE 3POS GOLD CRIMP

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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