Circular Connectors

Image Part Number Description / PDF Quantity Rfq
PLC1G823C09

PLC1G823C09

VEAM

CIRCULAR

0

MKJ3A7W10-26PN

MKJ3A7W10-26PN

VEAM

CONN RCPT MALE 26POS GOLD CRIMP

0

PLB4G520008

PLB4G520008

VEAM

CONN RCPT FMALE 8POS SOLDER CUP

4

MKJ3B7W9-19SN

MKJ3B7W9-19SN

VEAM

CONN RCPT FMALE 19POS GOLD CRIMP

0

CA06COMPG18-11S

CA06COMPG18-11S

VEAM

CONN PLUG FMALE 5P SILV SLDR CUP

0

MKJ1A7W13-37PA

MKJ1A7W13-37PA

VEAM

CONN RCPT MALE 37POS GOLD CRIMP

0

PLC1G223A06

PLC1G223A06

VEAM

CIRCULAR

0

PLC1G021E14

PLC1G021E14

VEAM

CIRCULAR

0

PLC1G123014

PLC1G123014

VEAM

CIRCULAR

0

PLC1G821A08

PLC1G821A08

VEAM

CIRCULAR

0

PLA3G822007

PLA3G822007

VEAM

CONN PLUG MALE 7POS SOLDER CUP

22

PLC3G821010

PLC3G821010

VEAM

CONN RCPT FMALE 10P SOLDER CUP

25

PLC3G821A02

PLC3G821A02

VEAM

CONN RCPT FMALE 2POS SOLDER CUP

25

PLC1G822C05

PLC1G822C05

VEAM

CIRCULAR

0

PLC1G422A03

PLC1G422A03

VEAM

CIRCULAR

0

PLC1G222E07

PLC1G222E07

VEAM

CIRCULAR

0

PLA1G223014

PLA1G223014

VEAM

CONN PLUG MALE 14POS SOLDER CUP

3

CA06COME28-21SWB

CA06COME28-21SWB

VEAM

CONN PLUG FMALE 37P SOLDER CUP

0

PLC1G523H10

PLC1G523H10

VEAM

CIRCULAR

0

MKJ3C7W10-26DN

MKJ3C7W10-26DN

VEAM

CONN RCPT FMALE 26POS GOLD SLDR

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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