Terminal Junction Systems

Image Part Number Description / PDF Quantity Rfq
SJT506401

SJT506401

Socapex (Amphenol Pcd)

MODULE MOUNTING TRACK, 6 POSITIO

0

SJT509104

SJT509104

Socapex (Amphenol Pcd)

CONN RAIL 4.662" L X 0.885" W

0

TJSE20513

TJSE20513

Socapex (Amphenol Pcd)

CONN WIRE SPLICE CAP SZ20

0

CNS074900

CNS074900

Socapex (Amphenol Pcd)

CONN SOCKET CONTACT SZ20

0

TJSE20102

TJSE20102

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20

0

SJS320600

SJS320600

Socapex (Amphenol Pcd)

CONN WIRE SPLICE SZ20 0.290" DIA

0

CNS047900

CNS047900

Socapex (Amphenol Pcd)

SOCKET CONTACT SZ16/16

0

TJSE22550

TJSE22550

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ22

0

SJM016100

SJM016100

Socapex (Amphenol Pcd)

CONN SCKT BLOCK SZ16 0.672" L

0

TJE120928

TJE120928

Socapex (Amphenol Pcd)

CONN RESISTOR MOD SZ20 0.850"L

0

CNS046900

CNS046900

Socapex (Amphenol Pcd)

SOCKET CONTACT SZ16/20

0

TJT703003

TJT703003

Socapex (Amphenol Pcd)

CONN RAIL 2.561" L X 1.12" W

0

SJM020400

SJM020400

Socapex (Amphenol Pcd)

CONN SCKT BLOCK SZ20 0.672" L

0

TJE120908

TJE120908

Socapex (Amphenol Pcd)

CONN RESISTOR MOD SZ20 0.850" L

0

TJHD22701

TJHD22701

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ22D 0.850" L

0

TJSE20843

TJSE20843

Socapex (Amphenol Pcd)

CONN WIRE SPLICE DIODE SZ20 2"L

0

TJSE22843

TJSE22843

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ22 2"L

0

TJSE20109

TJSE20109

Socapex (Amphenol Pcd)

CONN WIRE SPLICE DIODE

0

TJSE20821

TJSE20821

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20 2"L

0

TJG112711

TJG112711

Socapex (Amphenol Pcd)

CONN GRND BLOCK SZ12 0.850" L

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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