Terminal Junction Systems

Image Part Number Description / PDF Quantity Rfq
TJM120704

TJM120704

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ20 0.850" L

0

SJG416100

SJG416100

Socapex (Amphenol Pcd)

SOCKET GROUND MODULE

0

TBH120456

TBH120456

Socapex (Amphenol Pcd)

CONN MODULE SZ20 4-4POS

0

TJSE22601

TJSE22601

Socapex (Amphenol Pcd)

CONN WIRE SPLICE SERIES I

0

TJM220705

TJM220705

Socapex (Amphenol Pcd)

CONN FEEDTHRU MOD SZ20 0.850" L

0

SJS316700

SJS316700

Socapex (Amphenol Pcd)

CONN WIRE SPLICE SZ16 0.324" DIA

0

SJS316701

SJS316701

Socapex (Amphenol Pcd)

CONN WIRE SPLICE SZ16 1.428" L

0

TJT703002

TJT703002

Socapex (Amphenol Pcd)

CONN RAIL 2.171" L X 1.12" W

0

TJS316600

TJS316600

Socapex (Amphenol Pcd)

CONN WIRE SPLICE SZ16 1.922" L

0

TJE120924

TJE120924

Socapex (Amphenol Pcd)

CONN RESISTOR MOD SZ20 0.850" L

0

TJM120601

TJM120601

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ20 0.850" L

0

TJSE20706

TJSE20706

Socapex (Amphenol Pcd)

CONN WIRE SPLICE DIODE SZ20

0

TJT701012

TJT701012

Socapex (Amphenol Pcd)

CONN RAIL 6.071" L X 1.12" W

0

TJE120831

TJE120831

Socapex (Amphenol Pcd)

CONN DIODE MOD SZ20 0.85" L

0

TJSE20605

TJSE20605

Socapex (Amphenol Pcd)

CONN WIRE SPLICE SERIES I

0

TJSE20514

TJSE20514

Socapex (Amphenol Pcd)

CONN WIRE SPLICE FUSE SZ20 2"L

0

TJSE20244

TJSE20244

Socapex (Amphenol Pcd)

CONN WIRE SPLICE FUSE

0

TJSE20104

TJSE20104

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20

0

TJSE20607

TJSE20607

Socapex (Amphenol Pcd)

CONN WIRE SPLICE SERIES I

0

TJSE20820

TJSE20820

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20 2"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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