Circular Connectors

Image Part Number Description / PDF Quantity Rfq
KPT02E106S

KPT02E106S

VEAM

CONN RCPT FMALE 6POS SOLDER CUP

33

PLC1G022J09

PLC1G022J09

VEAM

CIRCULAR

0

PLB3G020002

PLB3G020002

VEAM

CONN RCPT FMALE 2POS GOLD SOLDER

5

MKJ3B7W10-26PN

MKJ3B7W10-26PN

VEAM

CONN RCPT MALE 26POS GOLD CRIMP

0

PLC1G522C04

PLC1G522C04

VEAM

CIRCULAR

0

PLB1G020006

PLB1G020006

VEAM

CONN RCPT FMALE 6POS SOLDER CUP

5

PLC1G521009

PLC1G521009

VEAM

CIRCULAR

0

PLB4G420014

PLB4G420014

VEAM

CIRCULAR

0

MKJ3A7W6-7SN

MKJ3A7W6-7SN

VEAM

MKJ 7C 7#23 SKT RECP BAY CAD

0

PLC1G122E10

PLC1G122E10

VEAM

CIRCULAR

0

PLC1G523J02

PLC1G523J02

VEAM

CIRCULAR

0

PLB1G020002

PLB1G020002

VEAM

CONN RCPT FMALE 2POS SOLDER CUP

0

M-XL-3-14

M-XL-3-14

VEAM

CONN RCPT MALE MINI XLR 3P SLDR

554

PLC1G222H05

PLC1G222H05

VEAM

CIRCULAR

0

PLC3G822C08

PLC3G822C08

VEAM

CONN RCPT FMALE 8POS SOLDER CUP

25

PLA1G522005

PLA1G522005

VEAM

CONN PLUG MALE 5POS SOLDER CUP

5

PLC1G621A07

PLC1G621A07

VEAM

CIRCULAR

0

PLC1G423A06

PLC1G423A06

VEAM

CIRCULAR

0

PLC1G023A04

PLC1G023A04

VEAM

CIRCULAR

0

PLC1G621014

PLC1G621014

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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