Terminal Blocks - Headers, Plugs and Sockets

Image Part Number Description / PDF Quantity Rfq
OSTTS04515A

OSTTS04515A

On-Shore Technology, Inc.

TERM BLOCK PLUG 4POS 5.08MM

0

EDSTLZ955/8

EDSTLZ955/8

On-Shore Technology, Inc.

TERM BLOCK HDR 8POS VERT 5.08MM

0

EDSTLZ990/16

EDSTLZ990/16

On-Shore Technology, Inc.

TERM BLOCK HDR 16POS 5.08MM

0

EDSTLZ1555/2

EDSTLZ1555/2

On-Shore Technology, Inc.

TERM BLOCK HDR 2POS VERT 3.81MM

8062

OSTTS03315A

OSTTS03315A

On-Shore Technology, Inc.

TERM BLOCK PLUG 3POS 3.81MM

216

EDZ960/5

EDZ960/5

On-Shore Technology, Inc.

TERM BLOCK PLUG 5POS STR 7.62MM

0

EDSTL956/6

EDSTL956/6

On-Shore Technology, Inc.

TERM BLOCK HDR 6POS VERT 5MM

0

OSTTS02515B

OSTTS02515B

On-Shore Technology, Inc.

TERM BLOCK PLUG 2POS 5.08MM

1602

OSTVF045050

OSTVF045050

On-Shore Technology, Inc.

TERM BLOCK HDR 4POS VERT 5.08MM

0

OSTOQ06A551

OSTOQ06A551

On-Shore Technology, Inc.

TERM BLOCK HDR 6POS 90DEG 7.5MM

0

EDSTLZ965/12

EDSTLZ965/12

On-Shore Technology, Inc.

TERM BLOCK HDR 12POS VERT 7.62MM

0

OSTTJ147150

OSTTJ147150

On-Shore Technology, Inc.

TERM BLOCK PLUG 14POS STR 5MM

14

OSTOQ0654501

OSTOQ0654501

On-Shore Technology, Inc.

TERM BLOCK HDR 6POS VERT 5.08MM

0

OSTTS04515B

OSTTS04515B

On-Shore Technology, Inc.

TERM BLOCK PLUG 4POS 5.08MM

655

ED1110/2

ED1110/2

On-Shore Technology, Inc.

TERM BLOCK PLUG 2POS 270DEG 5MM

0

EDZ1710/16

EDZ1710/16

On-Shore Technology, Inc.

TERM BLOCK PLUG 16POS 3.81MM

11

EDSTL955/11

EDSTL955/11

On-Shore Technology, Inc.

TERM BLOCK HDR 11POS VERT 5MM

0

ED1110/10

ED1110/10

On-Shore Technology, Inc.

TERM BLOCK PLUG 10POS 270DEG 5MM

0

OSTOQ035450

OSTOQ035450

On-Shore Technology, Inc.

TERM BLOCK HDR 3POS VERT 5.08MM

5372

ED1100/9

ED1100/9

On-Shore Technology, Inc.

TERM BLOCK PLUG 9POS 90DEG 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

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