Terminal Blocks - Headers, Plugs and Sockets

Image Part Number Description / PDF Quantity Rfq
OSTOQ037151

OSTOQ037151

On-Shore Technology, Inc.

TERM BLOCK HDR 3POS 90DEG 5MM

6249

OSTTJ087150

OSTTJ087150

On-Shore Technology, Inc.

TERM BLOCK PLUG 8POS STR 5MM

589

EDSTLZ960/10

EDSTLZ960/10

On-Shore Technology, Inc.

TERM BLOCK HDR 10POS 7.62MM

0

EDSTL950/12

EDSTL950/12

On-Shore Technology, Inc.

TERM BLOCK HDR 12POS 90DEG 5MM

0

EDSTLZ950/12

EDSTLZ950/12

On-Shore Technology, Inc.

TERM BLOCK HDR 12POS 5.08MM

1082

EDSTL955/2

EDSTL955/2

On-Shore Technology, Inc.

TERM BLOCK HDR 2POS VERT 5MM

6223

EDSTL130/12

EDSTL130/12

On-Shore Technology, Inc.

TERM BLOCK HDR 12POS VERT 5MM

105

EDSTL130/17

EDSTL130/17

On-Shore Technology, Inc.

TERM BLOCK HDR 17POS VERT 5MM

0

EDSTLZ950/3

EDSTLZ950/3

On-Shore Technology, Inc.

TERM BLOCK HDR 3POS 90DEG 5.08MM

1258

EDSTLZ951/3

EDSTLZ951/3

On-Shore Technology, Inc.

TERM BLOCK HDR 3POS 90DEG 5.08MM

90

EDZ1110/3

EDZ1110/3

On-Shore Technology, Inc.

TERM BLOCK PLUG 3POS 5.08MM

0

OSTOQ065450

OSTOQ065450

On-Shore Technology, Inc.

TERM BLOCK HDR 6POS VERT 5.08MM

8382

EDSTL130/09

EDSTL130/09

On-Shore Technology, Inc.

TERM BLOCK HDR 9POS VERT 5MM

1950

OSTTJ105153

OSTTJ105153

On-Shore Technology, Inc.

TERM BLOCK PLUG 10POS STR 5.08MM

1823

EDSTLZ990/17

EDSTLZ990/17

On-Shore Technology, Inc.

TERM BLOCK HDR 17POS 5.08MM

0

EDZ951/7

EDZ951/7

On-Shore Technology, Inc.

TERM BLOCK PLUG 7POS STR 5.08MM

11

OSTOQ123250

OSTOQ123250

On-Shore Technology, Inc.

TERM BLOCK HDR 12POS VERT 3.81MM

4003

OSTOQ025551

OSTOQ025551

On-Shore Technology, Inc.

TERM BLOCK HDR 2POS 90DEG 5.08MM

328

ED1110/6

ED1110/6

On-Shore Technology, Inc.

TERM BLOCK PLUG 6POS 270DEG 5MM

0

EDSTLZ951/7

EDSTLZ951/7

On-Shore Technology, Inc.

TERM BLOCK HDR 7POS 90DEG 5.08MM

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