Terminal Junction Systems

Image Part Number Description / PDF Quantity Rfq
TJSE20704

TJSE20704

Socapex (Amphenol Pcd)

CONN WIRE SPLICE FUSE SZ20 2"L

0

TJT701011

TJT701011

Socapex (Amphenol Pcd)

CONN RAIL 5.681" L X 1.12" W

0

SJG020200

SJG020200

Socapex (Amphenol Pcd)

CONN GRND BLOCK SZ20 0.740" L

0

TJM120602

TJM120602

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ20 0.850" L

0

SJT506404

SJT506404

Socapex (Amphenol Pcd)

CONN RAIL 3.108" L X 0.885" W

0

SJG012200

SJG012200

Socapex (Amphenol Pcd)

CONN GRND BLOCK SZ12 1.066" L

0

TJM112702

TJM112702

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ12 1.170" L

0

TJHD22703

TJHD22703

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ22D 0.850" L

0

SJE020015

SJE020015

Socapex (Amphenol Pcd)

CONN DIODE MOD 1.02" W X 1.17" H

0

TJHD22609

TJHD22609

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ22D 0.850" L

0

SJM022701

SJM022701

Socapex (Amphenol Pcd)

CONN SCKT BLOCK SZ22 0.672" L

0

SJTC04000

SJTC04000

Socapex (Amphenol Pcd)

CONN RAIL 2.072" L X 0.892" W

0

TBH120610

TBH120610

Socapex (Amphenol Pcd)

MCDONNEL DOUGLAS MODULE

0

TJSE20559

TJSE20559

Socapex (Amphenol Pcd)

CONN WIRE SPLICE DIODE SZ20 2"L

16

TJSE20231

TJSE20231

Socapex (Amphenol Pcd)

CONN WIRE SPLICE FUSE

0

SJT502201

SJT502201

Socapex (Amphenol Pcd)

CONN RAIL 1.036" L X 0.885" W

0

TJE120973

TJE120973

Socapex (Amphenol Pcd)

CONN RESISTOR MOD SERIES I

0

TJSE20602

TJSE20602

Socapex (Amphenol Pcd)

CONN WIRE SPLICE DIODE SZ20 2"L

23

TJM120701

TJM120701

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ20 0.850" L

0

TJE120903

TJE120903

Socapex (Amphenol Pcd)

CONN RESISTOR MOD SZ20

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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