Circular Connectors

Image Part Number Description / PDF Quantity Rfq
MKJ3B6W12-37PN

MKJ3B6W12-37PN

VEAM

CONN PLUG MALE 37POS GOLD CRIMP

0

PLC1G123C14

PLC1G123C14

VEAM

CIRCULAR

0

PLC1G123H03

PLC1G123H03

VEAM

CIRCULAR

0

PLA1G023014

PLA1G023014

VEAM

CONN PLUG MALE 14POS SOLDER CUP

5

CA08COME22-19S

CA08COME22-19S

VEAM

CONN PLUG FMALE 14P SOLDER CUP

0

PLC1G823H03

PLC1G823H03

VEAM

CIRCULAR

0

PLC1G821C05

PLC1G821C05

VEAM

CIRCULAR

0

PLC1G222014

PLC1G222014

VEAM

CIRCULAR

0

PLC1G223E10

PLC1G223E10

VEAM

CIRCULAR

0

PLC1G621J06

PLC1G621J06

VEAM

CIRCULAR

0

PLC1G623H02

PLC1G623H02

VEAM

CIRCULAR

0

CA08COME18-8S

CA08COME18-8S

VEAM

CONN PLUG FMALE 8P SILV SLDR CUP

0

PLC1G122A08

PLC1G122A08

VEAM

CIRCULAR

0

MKJ1A6F6-7SA

MKJ1A6F6-7SA

VEAM

MKJ1 7C 7#23 SKT PLUG NIC

0

PLC1G622008

PLC1G622008

VEAM

CONN RCPT FMALE 8POS SOLDER CUP

5

PLC1G423J02

PLC1G423J02

VEAM

CIRCULAR

0

MKJ1A7F7-10PA

MKJ1A7F7-10PA

VEAM

MKJ 10C 10#23 PIN RECP DBL NI

0

PLC1G422C10

PLC1G422C10

VEAM

CIRCULAR

0

PLA1G423009

PLA1G423009

VEAM

CONN PLUG MALE 9POS SOLDER CUP

4

PLC1G623H09

PLC1G623H09

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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