Terminal Junction Systems

Image Part Number Description / PDF Quantity Rfq
TJSE20239

TJSE20239

Socapex (Amphenol Pcd)

CONN WIRE SPLICE FUSE

0

TJE120905

TJE120905

Socapex (Amphenol Pcd)

CONN RESISTOR MOD SZ20 0.850" L

0

TJSE20113

TJSE20113

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES

0

TJSE20334

TJSE20334

Socapex (Amphenol Pcd)

CONN WIRE SPLICE FUSE

0

TJSE22504

TJSE22504

Socapex (Amphenol Pcd)

CONN WIRE SPLICE DIODE RES SZ22

0

TJSE20811

TJSE20811

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20

0

TJM122701

TJM122701

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ22 0.850" L

0

TJSE20603

TJSE20603

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20 2"L

0

SJT514304

SJT514304

Socapex (Amphenol Pcd)

CONN RAIL 7.252" L X 0.885" W

0

CNS072900

CNS072900

Socapex (Amphenol Pcd)

CONN SOCKET CONTACT SZ16

0

SJT510404

SJT510404

Socapex (Amphenol Pcd)

CONN RAIL 5.180" L X 0.885" W

0

TJE120843

TJE120843

Socapex (Amphenol Pcd)

CONN RESISTOR MOD SZ20 0.850"L

0

SJE020010

SJE020010

Socapex (Amphenol Pcd)

CONN DIODE MOD 1.02" W X 1.17" H

0

TJSE20110

TJSE20110

Socapex (Amphenol Pcd)

CONN WIRE SPLICE DIODE

0

SJG022270

SJG022270

Socapex (Amphenol Pcd)

CONN GRND BLOCK SZ22 0.740" L

0

SJTC14000

SJTC14000

Socapex (Amphenol Pcd)

CONN RAIL 7.252" L X 0.892" W

0

SJT502303

SJT502303

Socapex (Amphenol Pcd)

CONN RAIL 1.036" L X 0.885" W

0

SJE020067

SJE020067

Socapex (Amphenol Pcd)

CONN RES MOD 1.020" W X 1.170" H

0

TJT701010

TJT701010

Socapex (Amphenol Pcd)

CONN RAIL 5.291" L X 1.12" W

0

TJHD22603

TJHD22603

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ22D 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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