Circular Connectors

Image Part Number Description / PDF Quantity Rfq
MKJ3B6W6-7PN

MKJ3B6W6-7PN

VEAM

CONN PLUG MALE 7POS GOLD CRIMP

0

MKJ5A6F8-4SA

MKJ5A6F8-4SA

VEAM

MKJ 4C 4#23 SKT PLUG TRI NIC

0

PLC1G822J06

PLC1G822J06

VEAM

CIRCULAR

0

PLC1G821004

PLC1G821004

VEAM

CONN RCPT FMALE 4POS SOLDER CUP

177

PLC1G622E08

PLC1G622E08

VEAM

CIRCULAR

0

PLC1G222H06

PLC1G222H06

VEAM

CIRCULAR

0

PLC1G121J02

PLC1G121J02

VEAM

CIRCULAR

0

PLC1G122E08

PLC1G122E08

VEAM

CIRCULAR

0

MKJ3C7W7-10DN

MKJ3C7W7-10DN

VEAM

CONN RCPT FMALE 10POS GOLD SLDR

0

MKJ3C7F9-19CN

MKJ3C7F9-19CN

VEAM

CONN RCPT FMALE 19POS GOLD SLDR

0

PLC1G023E07

PLC1G023E07

VEAM

CIRCULAR

0

PLB3G020004

PLB3G020004

VEAM

CONN RCPT FMALE 4POS GOLD SOLDER

5

PLC1G123006

PLC1G123006

VEAM

CIRCULAR

0

PLC1G021E08

PLC1G021E08

VEAM

CIRCULAR

0

PLB1G520005

PLB1G520005

VEAM

CONN RCPT FMALE 5POS SOLDER CUP

5

PLC1G521C04

PLC1G521C04

VEAM

CIRCULAR

0

PLC1G023J09

PLC1G023J09

VEAM

CIRCULAR

0

MS3102R10SL-4S

MS3102R10SL-4S

VEAM

CONN RCPT FMALE 2P SILV SLDR CUP

1203

PLC1G823J03

PLC1G823J03

VEAM

CIRCULAR

0

PLC1G622E14

PLC1G622E14

VEAM

CIRCULAR

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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