Circular Connectors

Image Part Number Description / PDF Quantity Rfq
PLB1G420008

PLB1G420008

VEAM

CONN RCPT FMALE 8POS SOLDER CUP

5

MKJ1A6F9-19PA

MKJ1A6F9-19PA

VEAM

MKJ 19C 19#23 PIN PLUG DBL NI

0

MKJ3A7W6-7PN

MKJ3A7W6-7PN

VEAM

MKJ 7C 7#23 PIN RECP BAY CAD

0

MKJ1C7W9-19BA

MKJ1C7W9-19BA

VEAM

CONN RCPT MALE 19POS GOLD SOLDER

0

MKJ4A6F7-10S

MKJ4A6F7-10S

VEAM

CONN PLUG FMALE 10POS GOLD CRIMP

0

CA08COME20-15S44

CA08COME20-15S44

VEAM

CONN PLUG FMALE 7P SILV SLDR CUP

0

PLC1G621E08

PLC1G621E08

VEAM

CIRCULAR

0

PLA1G021002

PLA1G021002

VEAM

CONN PLUG MALE 2POS SOLDER CUP

200

PLC1G022A06

PLC1G022A06

VEAM

CIRCULAR

0

PLC1G123E10

PLC1G123E10

VEAM

CIRCULAR

0

MKJ3A6W9-19PN

MKJ3A6W9-19PN

VEAM

MKJ 19C 19#23 PIN PLUG BAY CAD

0

CA08COME28-12SBF80

CA08COME28-12SBF80

VEAM

CONN PLUG FMALE 26P SILVER CRIMP

0

PLC1G022A02

PLC1G022A02

VEAM

CIRCULAR

0

PLC1G622H02

PLC1G622H02

VEAM

CIRCULAR

0

CA08COME18-1SF80

CA08COME18-1SF80

VEAM

CONN PLUG FMALE 10P SILVER CRIMP

0

PLC3G823009

PLC3G823009

VEAM

CONN RCPT FMALE 9POS SOLDER CUP

25

PLB3G620005

PLB3G620005

VEAM

CONN RCPT FMALE 5POS GOLD SOLDER

3

PLB4G820014

PLB4G820014

VEAM

CONN RCPT FMALE 14P SOLDER CUP

24

PLC1G422J10

PLC1G422J10

VEAM

CIRCULAR

0

PLC1G621A02

PLC1G621A02

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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