Terminal Junction Systems

Image Part Number Description / PDF Quantity Rfq
TJM122711

TJM122711

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ22 0.850" L

0

TJM116707

TJM116707

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ16 0.850" L

0

TJSE20111

TJSE20111

Socapex (Amphenol Pcd)

CONN WIRE SPLICE DIODE

0

TJG116601

TJG116601

Socapex (Amphenol Pcd)

CONN GRND BLOCK SZ16

0

TJM116701

TJM116701

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ16 0.850" L

0

TJE120909

TJE120909

Socapex (Amphenol Pcd)

CONN RESISTOR MOD SZ20 0.850" L

0

SJS420700

SJS420700

Socapex (Amphenol Pcd)

SJS DOUBLE SPLICE, SIZE 20

0

TJSE20211

TJSE20211

Socapex (Amphenol Pcd)

CONN WIRE SPLICE DIODE

0

TJM120608

TJM120608

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ20 0.850" L

0

TJSE22521

TJSE22521

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ22

0

TJE120998

TJE120998

Socapex (Amphenol Pcd)

CONN DIODE MOD SZ20 0.85" L

0

TJSE20818

TJSE20818

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20 2"L

0

TJSE20723

TJSE20723

Socapex (Amphenol Pcd)

CONN WIRE SPLICE DIODE SZ20 2"L

0

TJSE20571

TJSE20571

Socapex (Amphenol Pcd)

CONN WIRE SPLICE FUSE SZ20

0

SJM022401

SJM022401

Socapex (Amphenol Pcd)

CONN SCKT BLOCK SZ22 0.672" L

0

TJSE20526

TJSE20526

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20 2"L

0

TJE120827

TJE120827

Socapex (Amphenol Pcd)

CONN DIODE MOD SZ20 0.85" L

0

TJSE20838

TJSE20838

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20 2"L

0

TJS322700

TJS322700

Socapex (Amphenol Pcd)

CONN WIRE SPLICE SZ22 1.552" L

0

TJSE20810

TJSE20810

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES 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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