Circular Connectors - Adapters

Image Part Number Description / PDF Quantity Rfq
1300680089

1300680089

Woodhead - Molex

QC 3P TEE W/3P QUICK DROP SK S

0

1300680085

1300680085

Woodhead - Molex

QC 4P TEE W/4P QUICK DROP DK

0

1200680028

1200680028

Woodhead - Molex

MC/MIC 3P FP/M/MP ST/ST 18/2PU

0

1300680071

1300680071

Woodhead - Molex

QC 4P TEE W/MC 4P FP #16/4 0.5M

0

1300350096

1300350096

Woodhead - Molex

MC DNET 2-WAY BUS PWR TEE

0

1300680080

1300680080

Woodhead - Molex

QC 4P TEE W/4P QUICK DROP SK S

0

1300680078

1300680078

Woodhead - Molex

QC 4P TEE W/4P QUICK DROP SK

0

1300680051

1300680051

Woodhead - Molex

CONN T-ADPT 3P-3/3P F-F/M INLINE

0

1300131001

1300131001

Woodhead - Molex

CONN ADAPTER 4P-4P F-M PNL MNT

0

1300680042

1300680042

Woodhead - Molex

CONN T-ADPT 3P-3/3P F-F/M INLINE

0

1300350030

1300350030

Woodhead - Molex

MC 6P ESTOP-IN TEE SPCL RED

0

1300680015

1300680015

Woodhead - Molex

BP D 3P M35 SK TO BP A 3P M22 SK

0

1300680031

1300680031

Woodhead - Molex

QC 3P TEE W/MC 3P FP #14/3 1M

0

1300350076

1300350076

Woodhead - Molex

MC 5P TEE MICRO DROP SST

0

1300680034

1300680034

Woodhead - Molex

CONN T-ADPT 3P-3/3P F-F/M INLINE

0

1300350077

1300350077

Woodhead - Molex

MC 4P MSPG 2-4

0

1300680104

1300680104

Woodhead - Molex

QC 3P TEE W/3P MC DROP #14 SK RE

0

1300680036

1300680036

Woodhead - Molex

QC 3P TEE W/MINI DROP 0.5M

0

1200850001

1200850001

Woodhead - Molex

MIC 4P MF ULOCK ADAPTER

0

0848549300

0848549300

Woodhead - Molex

CONN ADAPTER 5P-5P F-M PNL MNT

0

Circular Connectors - Adapters

1. Overview

Circular connectors-adapters are electromechanical devices enabling seamless signal/power transmission between components with different interface standards. Defined by IEC 60512 standards, these adapters feature cylindrical housings with multiple contact points, offering critical bridging solutions in complex systems. Their importance spans across aerospace, industrial automation, and medical equipment, where they ensure interoperability while maintaining signal integrity under harsh conditions.

2. Major Types & Functional Classification

TypeFunctional FeaturesApplication Examples
MIL-DTL-5015 AdaptersThreaded coupling, 4-95 contacts, vibration resistanceMilitary communication systems
MIL-DTL-38999 AdaptersHigh-density, environmental sealing (IP67)Aerospace sensor interfaces
USB-C Circular AdaptersHybrid signal/power transmission, reversible designIndustrial IoT devices
BNC-TNC AdaptersBayonet/ threaded coupling, 0-11GHz frequency rangeRF test equipment

3. Structural Composition

Typical construction includes: - Metal housing: Aluminum alloy or stainless steel with plating (nickel/gold) - Contact elements: Phosphor bronze with precision-machined contact areas - Insulation: High-temperature resistant thermoplastics (operating range: -55 C to +200 C) - Sealing system: Multi-lip elastomer gaskets for IP68 protection - Mating interface: Polarized keying system preventing misalignment

4. Key Technical Parameters

ParameterImportance
Current Rating (1-50A)Determines power transmission capacity
Contact Resistance ( 5m )Impacts signal fidelity
Dielectric Withstanding Voltage (500V-5kV)Ensures electrical safety
Insertion Loss ( 0.5dB)Microwave signal integrity
Shock Resistance (50G-150G)Survivability in extreme environments
Durability (500-10,000 mating cycles)Lifecycle cost efficiency

5. Application Fields

Key industries include: - Aerospace: Flight control systems (e.g., Boeing 787 sensor networks) - Industrial Automation: Siemens SIMATIC controllers interconnection - Medical Equipment: MRI machine RF connectors (Philips Ingenia series) - Telecommunications: 5G base station antenna interfaces - Transportation: High-speed train diagnostic systems (Siemens Velaro)

6. Leading Manufacturers

ManufacturerRepresentative Product
Amphenol AerospaceSerie 801 MIL-DTL-38999 Adapter
TE ConnectivityDEUTSCH DT06-6P Adapter
ITT CannonC Series C63EA-20-19P
MolexMX150L Adapter System

7. Selection Guidelines

Key considerations: - Electrical Requirements: Match current/voltage ratings with system needs - Environmental Conditions: Consider temperature range, corrosion resistance - Mechanical Compatibility: Verify thread types (UNF/Metric) and keying - Standard Compliance: MIL-STD-810, ISO 6722 certification - Maintenance Factors: Evaluate ease of field repairability

8. Industry Trend Analysis

Current developments show: - Miniaturization: 30% size reduction in USB-C hybrid adapters - High-speed Data: 40Gbps+ transmission rates in new RF adapters - Smart Integration: Embedded sensors for condition monitoring - Material Innovation: Graphene-coated contacts reducing resistance by 40% - Standardization: Growing adoption of IEC 61076-1 universal interface standard

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