Circular Connectors

Image Part Number Description / PDF Quantity Rfq
MKJ3C7F7-10AN

MKJ3C7F7-10AN

VEAM

CONN RCPT MALE 10POS GOLD SOLDER

0

PLC1G822E08

PLC1G822E08

VEAM

CIRCULAR

0

PLC1G423E04

PLC1G423E04

VEAM

CIRCULAR

0

PLC1G423J14

PLC1G423J14

VEAM

CIRCULAR

0

PLC1G622J06

PLC1G622J06

VEAM

CIRCULAR

0

MKJ3B7W6-4PN

MKJ3B7W6-4PN

VEAM

CONN RCPT MALE 4POS GOLD CRIMP

35

PLC1G521003

PLC1G521003

VEAM

CONN RCPT FMALE 3POS SOLDER CUP

5

MKJ3B6W6-7SN

MKJ3B6W6-7SN

VEAM

CONN PLUG FMALE 7POS GOLD CRIMP

0

MKJ4A6W7-10P

MKJ4A6W7-10P

VEAM

MKJ 10C 10#23 PIN PLUG QKD OD

0

CA08COME18-4SBF80

CA08COME18-4SBF80

VEAM

CONN PLUG FMALE 4P SILVER CRIMP

0

PLC3G821002

PLC3G821002

VEAM

CONN RCPT FMALE 2POS SOLDER CUP

4

PLC3G822A07

PLC3G822A07

VEAM

CONN RCPT FMALE 7POS SOLDER CUP

25

PLC1G422C02

PLC1G422C02

VEAM

CIRCULAR

0

XLR431

XLR431

VEAM

CONN RCPT FMALE XLR 4P SLDR CUP

100

PLC1G121H09

PLC1G121H09

VEAM

CIRCULAR

0

PLC1G021C02

PLC1G021C02

VEAM

CIRCULAR

0

PLB4G820005

PLB4G820005

VEAM

CONN RCPT FMALE 5POS SOLDER CUP

20

PLC1G123010

PLC1G123010

VEAM

CIRCULAR

0

PLC1G623A04

PLC1G623A04

VEAM

CIRCULAR

0

XLR612C

XLR612C

VEAM

CONN PLUG MALE XLR 6P SOLDER

31

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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