Terminal Blocks - Headers, Plugs and Sockets

Image Part Number Description / PDF Quantity Rfq
31369116

31369116

RIA Connect / METZ CONNECT

SCREW TYPE TERMINAL BLOCK, PLUG,

0

31157120

31157120

RIA Connect / METZ CONNECT

SCREW TYPE TERMINAL BLOCK, PLUG,

0

ASP0462122

ASP0462122

RIA Connect / METZ CONNECT

SPRING CLAMP TERMINAL BLOCK, PLU

0

31224123

31224123

RIA Connect / METZ CONNECT

PIN HEADER, VERTICAL, THR, PCB,

0

31166121

31166121

RIA Connect / METZ CONNECT

SCREW TYPE TERMINAL BLOCK, PLUG,

0

31393119

31393119

RIA Connect / METZ CONNECT

SHROUDED HEADER, VERTICAL, FLANG

0

31049116

31049116

RIA Connect / METZ CONNECT

SCREW TYPE TERMINAL BLOCK, PLUG,

0

31041120

31041120

RIA Connect / METZ CONNECT

PIN HEADER, BACKWALL, VERTICAL,

0

31107117

31107117

RIA Connect / METZ CONNECT

SCREW TYPE TERMINAL BLOCK, PLUG,

0

31176111

31176111

RIA Connect / METZ CONNECT

SHROUDED HEADER, RIGHT ANGLE, TH

0

31249122

31249122

RIA Connect / METZ CONNECT

SCREW TYPE TERMINAL BLOCK, PLUG,

0

31349124

31349124

RIA Connect / METZ CONNECT

SCREW TYPE TERMINAL BLOCK, PLUG,

0

31107118

31107118

RIA Connect / METZ CONNECT

SCREW TYPE TERMINAL BLOCK, PLUG,

0

31020120

31020120

RIA Connect / METZ CONNECT

SHROUDED HEADER, VERTICAL, PCB,

0

31166118

31166118

RIA Connect / METZ CONNECT

SCREW TYPE TERMINAL BLOCK, PLUG,

0

31369118

31369118

RIA Connect / METZ CONNECT

SCREW TYPE TERMINAL BLOCK, PLUG,

0

31166116

31166116

RIA Connect / METZ CONNECT

SCREW TYPE TERMINAL BLOCK, PLUG,

0

ASP0841506

ASP0841506

RIA Connect / METZ CONNECT

SPRING CLAMP TERMINAL BLOCK, PLU

0

31041114

31041114

RIA Connect / METZ CONNECT

PIN HEADER, BACKWALL, VERTICAL,

0

31157114

31157114

RIA Connect / METZ CONNECT

SCREW TYPE TERMINAL BLOCK, PLUG,

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