Terminal Junction Systems

Image Part Number Description / PDF Quantity Rfq
TJSE20724

TJSE20724

Socapex (Amphenol Pcd)

CONN WIRE SPLICE DIODE SZ20 2"L

0

TJE120824

TJE120824

Socapex (Amphenol Pcd)

CONN DIODE MOD SZ16/20 0.850" L

0

TJM122611

TJM122611

Socapex (Amphenol Pcd)

CONN FEEDBACK MOD SZ22 0.850" L

0

TJSE20726

TJSE20726

Socapex (Amphenol Pcd)

CONN WIRE SPLICE DIODE SZ20

0

TJE122956

TJE122956

Socapex (Amphenol Pcd)

SERIES I, ELECTRONIC MODULE

0

TJSE22720

TJSE22720

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ22

0

TJSE20107

TJSE20107

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20

0

SJTC07000

SJTC07000

Socapex (Amphenol Pcd)

CONN RAIL 3.626" L X 0.892" W

0

SJE020071

SJE020071

Socapex (Amphenol Pcd)

CONN RES MOD 1.020" W X 1.170" H

0

TJSE20537

TJSE20537

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20 2"L

0

TJSE20106

TJSE20106

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20

0

TJSE20902

TJSE20902

Socapex (Amphenol Pcd)

CONN WIRE SPLICE RES SZ20 2"L

0

SJM000200

SJM000200

Socapex (Amphenol Pcd)

CONN SCKT BLOCK SZ12/16 1.020"L

0

TJSE20232

TJSE20232

Socapex (Amphenol Pcd)

CONN WIRE SPLICE FUSE

0

TJE120922

TJE120922

Socapex (Amphenol Pcd)

CONN RESISTOR MOD SZ20 0.850" L

0

TJSE20346

TJSE20346

Socapex (Amphenol Pcd)

CONN WIRE SPLICE FUSE

0

TJE120828

TJE120828

Socapex (Amphenol Pcd)

CONN DIODE MOD SZ20 0.85" L

0

SJS416701

SJS416701

Socapex (Amphenol Pcd)

SJS DOUBLE SPLICE, SIZE 16

0

SJG020201

SJG020201

Socapex (Amphenol Pcd)

CONN GRND BLOCK SZ20 0.740" L

0

TJSE20101

TJSE20101

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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