Terminal Junction Systems

Image Part Number Description / PDF Quantity Rfq
TJE120970

TJE120970

Socapex (Amphenol Pcd)

CONN RESISTOR MOD SERIES I

0

SJT502101

SJT502101

Socapex (Amphenol Pcd)

CONN RAIL 1.036" L X 0.885" W

0

TJSE20103

TJSE20103

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20

0

SJT525204

SJT525204

Socapex (Amphenol Pcd)

CONN RAIL 12.950" L X 0.885" W

0

TJSE20235

TJSE20235

Socapex (Amphenol Pcd)

CONN WIRE SPLICE FUSE

0

CNP072000

CNP072000

Socapex (Amphenol Pcd)

CONN PIN CONTACT SZ12

0

SJT503404

SJT503404

Socapex (Amphenol Pcd)

CONN RAIL 1.554" L X 0.885" W

26

SJT506104

SJT506104

Socapex (Amphenol Pcd)

CONN RAIL 3.108" L X 0.885" W

0

TJT703021

TJT703021

Socapex (Amphenol Pcd)

CONN RAIL 9.581" L X 1.12" W

0

SJE020017

SJE020017

Socapex (Amphenol Pcd)

CONN RES MOD 1.020" W X 1.170" H

0

TJT703020

TJT703020

Socapex (Amphenol Pcd)

CONN RAIL 9.191" L X 1.12" W

0

SJT509101

SJT509101

Socapex (Amphenol Pcd)

CONN RAIL 4.662" L X 0.885" W

0

SJE020072

SJE020072

Socapex (Amphenol Pcd)

SOCKET JUNCTION MODULES

0

TJG112701

TJG112701

Socapex (Amphenol Pcd)

CONN GRND BLOCK SZ12 0.850" L

0

TJSE20553

TJSE20553

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20 2"L

0

SJT504404

SJT504404

Socapex (Amphenol Pcd)

CONN RAIL 2.072" L X 0.885" W

0

TJM216607

TJM216607

Socapex (Amphenol Pcd)

CONN FEEDTHRU MOD SZ16

0

SJE020063

SJE020063

Socapex (Amphenol Pcd)

CONN DIODE MOD 1.02" W X 1.17" H

0

SJG016171

SJG016171

Socapex (Amphenol Pcd)

CONN GRND BLOCK SZ16 0.740" L

0

SJT510104

SJT510104

Socapex (Amphenol Pcd)

CONN RAIL 5.180" 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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