Terminal Junction Systems

Image Part Number Description / PDF Quantity Rfq
SJT505104

SJT505104

Socapex (Amphenol Pcd)

CONN RAIL 2.590" L X 0.885" W

0

TJSE20826

TJSE20826

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20 2"L

0

TJM112701

TJM112701

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ12 1.170" L

0

SJT513101

SJT513101

Socapex (Amphenol Pcd)

CONN RAIL 6.734" L X 0.885" W

0

TJE120902

TJE120902

Socapex (Amphenol Pcd)

CONN RESISTOR MOD SZ20

0

SJE020058

SJE020058

Socapex (Amphenol Pcd)

CONN DIODE MOD 1.02" W X 1.17" H

0

TJG122711

TJG122711

Socapex (Amphenol Pcd)

CONN GRND BLOCK SZ22 0.850" L

0

SJM016200

SJM016200

Socapex (Amphenol Pcd)

CONN SCKT BLOCK SZ16 0.672" L

0

TJSE22519

TJSE22519

Socapex (Amphenol Pcd)

CONN WIRE SPLIC RES CAP SZ22 2"L

0

SJE020054

SJE020054

Socapex (Amphenol Pcd)

CONN RES MOD 1.020" W X 1.170" H

0

TJE120515

TJE120515

Socapex (Amphenol Pcd)

CONN CAP MOD SZ16/20

0

TJSE22711

TJSE22711

Socapex (Amphenol Pcd)

CONN WIRE SPLICE DIODE SZ22 2"L

0

SJT502401

SJT502401

Socapex (Amphenol Pcd)

MODULE MOUNTING TRACK, 2 POSITIO

0

TJT701014

TJT701014

Socapex (Amphenol Pcd)

CONN RAIL 6.851" L X 1.12" W

0

SJP016000

SJP016000

Socapex (Amphenol Pcd)

CONN SCKT BLOCK SZ16 1.020" L

0

TJE120817

TJE120817

Socapex (Amphenol Pcd)

CONN DIODE MOD SZ16/20 0.850" L

0

TJSE20555

TJSE20555

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20

0

SJM000101

SJM000101

Socapex (Amphenol Pcd)

CONN SCKT BLOCK SZ12/16 1.020"L

0

SJM000501

SJM000501

Socapex (Amphenol Pcd)

CONN SCKT BLOCK SZ16 /20 /22

0

TJE120915

TJE120915

Socapex (Amphenol Pcd)

CONN DIODE MOD SZ20 0.85" 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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