Terminal Blocks - Headers, Plugs and Sockets

Part Number	Description / PDF	Quantity
NY0310810000G Anytek (Amphenol Anytek)	NY-3.5-3P DARK GREY (RAL7004/P)	400
20020011-H101B01LF Anytek (Amphenol Anytek)	TERM BLOCK PLUG 10POS 5.08MM	0
TS10315B0000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 10POS 3.81MM	0
OQ0375510000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 3POS 90DEG 5MM	0
HW1030520000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 10POS STR 3.81MM	0
OQ0671510000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 6POS 90DEG 5MM	0
OQ0335510000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 3POS 90DEG 3.81MM	653
TS05515A0000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 5POS 5.08MM	1850
TJ0251530000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 2POS STR 5.08MM	2327
TS04315B0000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 4POS 3.81MM	0
OQ0235510000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 2POS 90DEG 3.81MM	1247
OQ0870500000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 8POS VERT 5MM	0
VM0335520000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 3POS STR 3.81MM	0
VK0352500000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 3POS 45DEG 5.08MM	0
VK0452500000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 4POS 45DEG 5.08MM	0
VK0851500000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 8POS 45DEG 5.08MM	0
TJ0531530000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 5POS STR 3.81MM	3032
VK0451500000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 4POS 45DEG 5.08MM	0
HW0670500000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 6POS STR 5MM	252
TS08315B0000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 8POS 3.81MM	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