Terminal Junction Systems

Image Part Number Description / PDF Quantity Rfq
SJE020023

SJE020023

Socapex (Amphenol Pcd)

CONN DIODE MOD 1.02" W X 1.17" H

0

TJM222709

TJM222709

Socapex (Amphenol Pcd)

CONN FEEDTHRU MOD SZ22 0.850" L

0

TJSE20343

TJSE20343

Socapex (Amphenol Pcd)

CONN WIRE SPLICE FUSE

0

TJSE22845

TJSE22845

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES CAP SZ22

0

SJE020011

SJE020011

Socapex (Amphenol Pcd)

CONN RES MOD 1.020" W X 1.170" H

0

SJG320170

SJG320170

Socapex (Amphenol Pcd)

SOCKET GROUND MODULE

0

TJT703008

TJT703008

Socapex (Amphenol Pcd)

CONN RAIL 4.511" L X 1.12" W

0

TJSE22510

TJSE22510

Socapex (Amphenol Pcd)

CONN WIRE SPLICE FUSE SZ22 2"L

0

TJSE20828

TJSE20828

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20 2"L

0

TJT400200

TJT400200

Socapex (Amphenol Pcd)

CONN RAIL 1.725" L X 1.120" W

0

TJT701007

TJT701007

Socapex (Amphenol Pcd)

CONN RAIL 4.121" L X 1.12" W

0

TJSE20560

TJSE20560

Socapex (Amphenol Pcd)

CONN WIRE SPLICE SERIES I

0

TJSE20342

TJSE20342

Socapex (Amphenol Pcd)

CONN WIRE SPLICE FUSE

0

SJE020924

SJE020924

Socapex (Amphenol Pcd)

CONN RES MOD 1.020" W X 1.170" H

0

SJT540404

SJT540404

Socapex (Amphenol Pcd)

CONN RAIL 20.720" L X 0.885" W

0

RST145006

RST145006

Socapex (Amphenol Pcd)

TRACK

0

TJSE20829

TJSE20829

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20 2"L

0

TJSE22839

TJSE22839

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ22 2"L

0

SJS316601

SJS316601

Socapex (Amphenol Pcd)

CONN WIRE SPLICE SZ16 1.428" L

0

SJT503101

SJT503101

Socapex (Amphenol Pcd)

CONN RAIL 1.554" L X 0.885" W

0

Terminal Junction Systems

1. Overview

Connectors, interconnects, and terminal junction systems are critical components in electrical and electronic systems, enabling reliable signal and power transmission between devices. These components provide removable or permanent electrical connections while maintaining circuit integrity. Their importance has grown exponentially with advancements in electronics miniaturization, high-speed data transmission, and industrial automation requirements.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Board-to-Board ConnectorsStacking PCBs without cablesSmartphones, industrial control panels
Wire-to-Wire ConnectorsConnecting discrete cablesAutomotive wiring harnesses
I/O ConnectorsExternal device interfacingUSB, HDMI ports
Terminal BlocksConnecting multiple wires permanentlyIndustrial machinery control cabinets
High-Speed BackplanesMulti-gigabit parallel data transmissionTelecom switches, servers

3. Structure and Components

Typical construction includes:

  • Contact elements: Conductive paths made from phosphor bronze or beryllium copper
  • Insulation housing: Thermoplastic materials (e.g., PBT, LCP) with flame-retardant properties
  • Termination system: Crimping, soldering, or insulation displacement contacts (IDC)
  • Environmental seals: Elastomer gaskets for IP protection
  • Actuation mechanisms: Latching systems for secure mating

4. Key Technical Specifications

ParameterImportanceTypical Range
Current RatingDetermines power handling capacity0.1A - 1000A
Contact ResistanceAffects signal integrity1m - 30m
Dielectric Withstanding VoltageSafety insulation level500V - 5kV
Insertion ForceUsability consideration0.5N - 20N
Operating TemperatureEnvironmental reliability-65 C to +200 C

5. Application Areas

Major industries include:

  • Consumer Electronics: Wearables, mobile devices
  • Automotive: EV battery systems, ADAS sensors
  • Industrial Automation: PLC systems, robotics
  • Telecommunications: 5G base stations, fiber optics
  • Aerospace: Avionics, satellite systems
  • Medical: Diagnostic equipment, implantable devices

6. Leading Manufacturers and Products

ManufacturerKey Products
TE ConnectivityMICRO5 USB connectors, DEUTSCH DRC connectors
AmphenolOrccon industrial terminal blocks, TNC series RF connectors
MolexPicoBlade headers, MX150 automotive connectors
Phoenix ContactCOMBICON modular terminal blocks, PROtop series
SamtecSEARAY high-speed arrays, micro pitch connectors

7. Selection Guidelines

Consider:

  • Electrical requirements: Voltage/current specifications
  • Mechanical constraints: Space limitations and mating cycles
  • Environmental conditions: Temperature, vibration, EMI shielding
  • Cost vs. reliability: Military-grade vs. commercial-grade components
  • Industry standards: Compliance with IPC, IEC, or MIL specifications

Case Study: In industrial automation, Phoenix Contact's CLIPLINE terminal blocks were selected for their vibration-resistant spring-cage termination in conveyor control systems.

8. Industry Trends

Emerging developments:

  • Miniaturization: Sub-1.0mm pitch connectors for wearable devices
  • High-speed transmission: 112Gbps differential pairs for 5G infrastructure
  • Hybrid connectors: Integrated power/data transmission (e.g., USB4 Power Delivery)
  • Sustainable materials: Bio-based polymers and lead-free plating
  • Smart connectivity: Embedded sensors for condition monitoring

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