Circular Connectors

Image Part Number Description / PDF Quantity Rfq
SCE2-B-76A07-14SN-001

SCE2-B-76A07-14SN-001

Socapex (Amphenol Pcd)

CONN PLUG FMALE 14POS GOLD SLDR

0

SJS820121

SJS820121

Socapex (Amphenol Pcd)

CONN PLUG FMALE 3POS GOLD CRIMP

0

SJS716101

SJS716101

Socapex (Amphenol Pcd)

CONN PLUG FMALE 1POS GOLD CRIMP

0

SJS816111

SJS816111

Socapex (Amphenol Pcd)

CONN PLUG FMALE 3POS GOLD CRIMP

0

SJS831100

SJS831100

Socapex (Amphenol Pcd)

CONN PLUG FMALE 8POS GOLD CRIMP

25

SJS850521

SJS850521

Socapex (Amphenol Pcd)

CONN RCPT MALE 5POS GOLD CRIMP

0

SJS820221

SJS820221

Socapex (Amphenol Pcd)

CONN RCPT MALE 3POS GOLD CRIMP

0

SJS0511110

SJS0511110

Socapex (Amphenol Pcd)

CONN PLUG FMALE 11P SOLDER CUP

25

UCOM10G+RSB

UCOM10G+RSB

Socapex (Amphenol Pcd)

CONN RCPT FMALE 8P GOLD SLDR CUP

0

UCOM-10G+ RP U

UCOM-10G+ RP U

Socapex (Amphenol Pcd)

CONN RCPT FMALE 8POS GOLD SOLDER

0

SJS512201

SJS512201

Socapex (Amphenol Pcd)

CONN RCPT MALE 1POS GOLD CRIMP

0

SJS860521

SJS860521

Socapex (Amphenol Pcd)

CONN RCPT MALE 5POS GOLD CRIMP

0

SCE2-B-L1K07-10APN

SCE2-B-L1K07-10APN

Socapex (Amphenol Pcd)

CONN RCPT MALE 10P GOLD SLDR CUP

0

UCOMUSB3PPSUGA

UCOMUSB3PPSUGA

Socapex (Amphenol Pcd)

CONN PLUG MALE 8POS SOLDER CUP

2

SJS830271

SJS830271

Socapex (Amphenol Pcd)

CONN RCPT MALE 2POS GOLD CRIMP

46

UCOM-10G+ LCUGA

UCOM-10G+ LCUGA

Socapex (Amphenol Pcd)

CONN RCPT FMALE 8POS GOLD CRIMP

0

SJS720101

SJS720101

Socapex (Amphenol Pcd)

CONN PLUG FMALE 1POS GOLD CRIMP

0

SCE2-B-L1K06-07PN

SCE2-B-L1K06-07PN

Socapex (Amphenol Pcd)

CONN RCPT MALE 7P GOLD SLDR CUP

0

TV06UCOMCW11P

TV06UCOMCW11P

Socapex (Amphenol Pcd)

CONN PLUG MALE 8POS GOLD CRIMP

0

TV07UCOMCIW11SF459

TV07UCOMCIW11SF459

Socapex (Amphenol Pcd)

CONN RCPT FMALE 8POS GOLD SOLDER

25

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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