Terminal Blocks - Headers, Plugs and Sockets

Image Part Number Description / PDF Quantity Rfq
0395373922

0395373922

Woodhead - Molex

TERM BLOCK PLUG 22POS 5.08MM

0

0395045711

0395045711

Woodhead - Molex

TERM BLOCK PLUG 11POS STR 3.5MM

0

0395377811

0395377811

Woodhead - Molex

TERM BLOCK PLUG 11POS 5.08MM

0

0395232823

0395232823

Woodhead - Molex

TERM BLOCK PLUG 23POS 270DEG 5MM

0

0394210010

0394210010

Woodhead - Molex

TERM BLOCK PLUG 10POS STR 12MM

0

0395372024

0395372024

Woodhead - Molex

TERM BLOCK PLUG 24POS 5.08MM

0

0395156507

0395156507

Woodhead - Molex

TERM BLOCK HDR 7POS VERT 3.81MM

0

0395310011

0395310011

Woodhead - Molex

TERM BLOCK HDR 11POS VERT 5.08MM

0

0395173003

0395173003

Woodhead - Molex

TERM BLOCK PLUG 3POS 3.81MM

0

0395340203

0395340203

Woodhead - Molex

TERM BLOCK PLUG 3POS STR 5.08MM

0

0395373414

0395373414

Woodhead - Molex

TERM BLOCK PLUG 14POS 5.08MM

0

0395360020

0395360020

Woodhead - Molex

TERM BLOCK HDR 20POS 5.08MM

0

0395138804

0395138804

Woodhead - Molex

TERM BLOCK PLUG 4POS 3.81MM

0

0395359020

0395359020

Woodhead - Molex

TERM BLOCK HDR 20POS VERT 5.08MM

0

0395000511

0395000511

Woodhead - Molex

TERM BLOCK PLUG 11POS STR 3.5MM

0

0395238008

0395238008

Woodhead - Molex

TERM BLOCK PLUG 8POS 90DEG 5MM

319

0395172806

0395172806

Woodhead - Molex

TERM BLOCK PLUG 6POS 3.81MM

0

0395233016

0395233016

Woodhead - Molex

TERM BLOCK PLUG 16POS 90DEG 5MM

0

0395224020

0395224020

Woodhead - Molex

TERM BLOCK HDR 20POS 90DEG 5MM

0

0395016513

0395016513

Woodhead - Molex

TERM BLOCK HDR 13POS VERT 3.5MM

0

Terminal Blocks - Headers, Plugs and Sockets

1. Overview

Terminal blocks, headers, plugs, and sockets are essential components in electrical and electronic systems for establishing reliable connections between circuits. These devices enable signal transmission, power distribution, and system modularity. Their standardized designs ensure interoperability, scalability, and ease of maintenance in complex systems.

2. Main Types and Functional Classification

Type Functional Characteristics Application Examples
Terminal Blocks Screw/clamp-based connections for high current/ voltage Industrial control panels, power distribution units
PCB Headers Pin/grid arrays for board-to-board connections Embedded systems, Arduino shields
RJ Connectors Modular jacks for data/telecom signals Ethernet networks (RJ45), telephone systems (RJ11)
D-Sub Connectors Multi-pin trapezoidal shells for analog/digital signals Legacy serial interfaces, industrial sensors
USB Connectors Hot-pluggable interfaces for power/data Consumer electronics, peripheral devices

3. Structure and Components

Typical structures include:

  • Insulating housing (PA66, PBT, or LCP plastics)
  • Contact elements (phosphor bronze, beryllium copper)
  • Plating materials (gold, tin, nickel for corrosion resistance)
  • Actuation mechanisms (screws, spring clamps, or friction fits)
  • EMI shielding layers (for high-frequency applications)

4. Key Technical Specifications

Parameter Importance
Current Rating (A) Determines power handling capacity
Voltage Rating (V) Defines dielectric strength requirements
Contact Resistance (m ) Impacts signal integrity and power loss
Insertion Loss (dB) Critical for high-speed data transmission
Mating Cycles Indicates mechanical durability
Operating Temperature (- C to + C) Defines environmental tolerance

5. Application Fields

Primary industries include:

  • Industrial automation (PLCs, HMIs)
  • Telecommunications (5G base stations, routers)
  • Consumer electronics (smartphones, wearables)
  • Medical equipment (imaging devices, patient monitors)
  • Automotive (EV charging systems, ADAS)

6. Leading Manufacturers and Products

Manufacturer Representative Product
Phoenix Contact COMBICON series terminal blocks
TE Connectivity MICRO MATCH connectors
Molex SL Series headers
Amphenol D-Subminiature connectors
Samtec QTE high-speed socket systems

7. Selection Guidelines

Key considerations:

  • Electrical requirements (current/voltage levels)
  • Mechanical constraints (space, vibration)
  • Environmental factors (temperature, humidity)
  • Signal integrity needs (frequency, noise rejection)
  • Cost vs. reliability trade-offs
  • Compliance with standards (IPC, IEC, UL)

8. Industry Trends

Emerging developments include:

  • Miniaturization for wearable devices
  • High-speed connectors for 5G/6G ( 25 Gbps)
  • Hybrid connectors integrating power/data
  • Eco-friendly materials (halogen-free, RoHS compliant)
  • Smart connectors with built-in sensors
  • Automotive-grade connectors for EVs

RFQ BOM Call Skype Email
Top