Terminal Junction Systems

Image Part Number Description / PDF Quantity Rfq
SJM020401

SJM020401

Socapex (Amphenol Pcd)

CONN SCKT BLOCK SZ20 0.672" L

0

SJTC10000

SJTC10000

Socapex (Amphenol Pcd)

CONN RAIL 5.180" L X 0.892" W

0

SJM012200

SJM012200

Socapex (Amphenol Pcd)

CONN SCKT BLOCK SZ12 1.020" L

0

TJHD22612

TJHD22612

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ22D 0.850" L

0

TJM122608

TJM122608

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ22 0.850" L

0

TJSE22841

TJSE22841

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ22 2"L

0

TJSE20727

TJSE20727

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20 2"L

0

TJE120939

TJE120939

Socapex (Amphenol Pcd)

CONN RESISTOR MOD SZ20 0.850" L

0

TJF120101

TJF120101

Socapex (Amphenol Pcd)

GROUND FLANGE MOUNT, SIZE 20, WC

0

SJTC09000

SJTC09000

Socapex (Amphenol Pcd)

CONN RAIL 4.662" L X 0.892" W

0

TJM122605

TJM122605

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ22 0.850" L

0

TJE120950

TJE120950

Socapex (Amphenol Pcd)

CONN RESISTOR MOD SZ20

0

TJHD22708

TJHD22708

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ22D 0.850" L

0

TJE120835

TJE120835

Socapex (Amphenol Pcd)

CONN DIODE MOD SZ20 0.85" L

0

TJT702003

TJT702003

Socapex (Amphenol Pcd)

CONN RAIL 2.820" L X 1.12" W

0

SJT520504

SJT520504

Socapex (Amphenol Pcd)

MODULE MOUNTING TRACK, 20 POSITI

0

TJSE20520

TJSE20520

Socapex (Amphenol Pcd)

CONN WIRE SPLICE CAP SZ20

0

TJM116605

TJM116605

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ16 0.850" L

0

SJM022101

SJM022101

Socapex (Amphenol Pcd)

CONN SCKT BLOCK SZ22 0.672" L

0

SJM012201

SJM012201

Socapex (Amphenol Pcd)

CONN SCKT BLOCK SZ12 1.020" 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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