Circular Connectors - Adapters

Image Part Number Description / PDF Quantity Rfq
1300350007

1300350007

Woodhead - Molex

CONN T-ADPT 5P-5/5P F-F/M INLINE

0

1300680048

1300680048

Woodhead - Molex

QC 3P TEE 1.5M W/DROP CABLE #1

0

1300680111

1300680111

Woodhead - Molex

QC 4P TEE W/MC ALT-KEY 90D 4P FP

0

1300350008

1300350008

Woodhead - Molex

CONN T-ADPT 5P-5/5P F-F/M INLINE

0

1300680103

1300680103

Woodhead - Molex

QC 4P TEE W/MC ALT-KEY 90D 4P FP

0

1300680009

1300680009

Woodhead - Molex

QC 4P TEE W/MC 4P FP #14/4 0.5M

0

0848569103

0848569103

Woodhead - Molex

NMEA MINI, BULKHEAD FEED-THRU RE

0

1300680068

1300680068

Woodhead - Molex

QC 4P TEE W/4P MC DROP #14 SK

0

1300680109

1300680109

Woodhead - Molex

QC 3P TEE W/MC 3P FP #14/3 4M RE

0

1300680082

1300680082

Woodhead - Molex

CONN T-ADPT 4P-4/4P F-F/M INLINE

0

1200700233

1200700233

Woodhead - Molex

MIC 5P F/FR BPM 30CM #22/1 PG9

0

1300180476

1300180476

Woodhead - Molex

MC 3P TEE - 3-WIRE TAP RED OVM

0

1300350063

1300350063

Woodhead - Molex

MC 5P TEE PASSIVE 316 SS

0

1300350065

1300350065

Woodhead - Molex

MC 5P TEE PASSIVE

0

1300680072

1300680072

Woodhead - Molex

CONN T-ADPT 4P-4/4P F-F/M INLINE

0

1300350062

1300350062

Woodhead - Molex

5P TEE PASSIVE SS

0

1300680108

1300680108

Woodhead - Molex

QC 3P TEE W/MC 3P FP #14/3 2M RE

0

1200680046

1200680046

Woodhead - Molex

MIC 5P/3W AC SPLT ST/FP'S 1FT

0

1300680049

1300680049

Woodhead - Molex

QC 3P TEE 2M W/DROP CABLE #14

0

1300680055

1300680055

Woodhead - Molex

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

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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