Terminal Junction Systems

Image Part Number Description / PDF Quantity Rfq
SJE020068

SJE020068

Socapex (Amphenol Pcd)

CONN DIODE MOD 1.02" W X 1.17" H

0

SJT513301

SJT513301

Socapex (Amphenol Pcd)

CONN RAIL 6.734" L X 0.885" W

0

TBH120454

TBH120454

Socapex (Amphenol Pcd)

CONN MODULE SZ20 2-8POS

0

TJM112706

TJM112706

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ12 1.170" L

0

SJTC13000

SJTC13000

Socapex (Amphenol Pcd)

CONN RAIL 6.734" L X 0.892" W

0

SJS322701

SJS322701

Socapex (Amphenol Pcd)

CONN WIRE SPLICE SZ22 1.322" L

0

TJSE20241

TJSE20241

Socapex (Amphenol Pcd)

CONN WIRE SPLICE FUSE

0

TJM112601

TJM112601

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ12 1.170" L

0

TJSE20234

TJSE20234

Socapex (Amphenol Pcd)

CONN WIRE SPLICE FUSE

0

TJM216708

TJM216708

Socapex (Amphenol Pcd)

CONN FEEDTHRU MOD SZ16 1.170" L

0

TJSE20530

TJSE20530

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20 2"L

0

SJG422100

SJG422100

Socapex (Amphenol Pcd)

SOCKET GROUND MODULE

0

TJSE20702

TJSE20702

Socapex (Amphenol Pcd)

CONN WIRE SPLICE DIODE SZ20 2"L

0

SJT506101

SJT506101

Socapex (Amphenol Pcd)

CONN RAIL 3.108" L X 0.885" W

0

SJT504504

SJT504504

Socapex (Amphenol Pcd)

MODULE MOUNTING TRACK, 4 POSITIO

0

TJM120708

TJM120708

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ20 0.850" L

0

SJM022700

SJM022700

Socapex (Amphenol Pcd)

CONN SCKT BLOCK SZ22 0.672" L

0

CNP068000

CNP068000

Socapex (Amphenol Pcd)

CONN PIN CONTACT SZ22

0

TJM122603

TJM122603

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ22 0.850" L

0

TJM120611

TJM120611

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ20 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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