Terminal Junction Systems

Image Part Number Description / PDF Quantity Rfq
TJM112605

TJM112605

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ12 1.170" L

0

SJG020171

SJG020171

Socapex (Amphenol Pcd)

CONN GRND BLOCK SZ20 0.740" L

0

TJS320701

TJS320701

Socapex (Amphenol Pcd)

CONN WIRE SPLICE SZ20 1.552" L

0

TJHD22601

TJHD22601

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ22D 0.850" L

0

TJM216703

TJM216703

Socapex (Amphenol Pcd)

CONN FEEDTHRU MOD SZ16 1.170" L

0

SJG016271

SJG016271

Socapex (Amphenol Pcd)

CONN GRND BLOCK SZ16 0.740" L

0

TJSE20554

TJSE20554

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20 2"L

0

TJSE20523

TJSE20523

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20

0

SJG322170

SJG322170

Socapex (Amphenol Pcd)

SOCKET GROUND MODULE

0

TJM120605

TJM120605

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ20 0.850" L

0

TJE120941

TJE120941

Socapex (Amphenol Pcd)

CONN DIODE MOD SZ20 0.85" L

0

TJT703012

TJT703012

Socapex (Amphenol Pcd)

CONN RAIL 6.071" L X 1.12" W

0

TJSE20233

TJSE20233

Socapex (Amphenol Pcd)

CONN WIRE SPLICE FUSE

0

SJM020200

SJM020200

Socapex (Amphenol Pcd)

CONN SCKT BLOCK SZ20 0.672" L

0

SJE020061

SJE020061

Socapex (Amphenol Pcd)

CONN RES MOD 1.020" W X 1.170" H

0

SJP022000

SJP022000

Socapex (Amphenol Pcd)

CONN SCKT BLOCK SZ22 0.672" L

0

TJM112603

TJM112603

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ12 1.170" L

0

SJS322600

SJS322600

Socapex (Amphenol Pcd)

CONN WIRE SPLICE SZ22 0.230" DIA

0

TJM222609

TJM222609

Socapex (Amphenol Pcd)

CONN FEEDTHRU MOD SZ22 0.850" L

0

TJT703010

TJT703010

Socapex (Amphenol Pcd)

CONN RAIL 5.291" L X 1.12" 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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