Terminal Blocks - Headers, Plugs and Sockets

Part Number	Description / PDF	Quantity
VK0631500000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 6POS 45DEG 3.81MM	1550
TJ1631530000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 16POS STR 3.81MM	1473
TS09715A0000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 9POS 90DEG 5MM	0
OQ1055500000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 10POS VERT 5.08MM	770
TS06515C0000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 6POS 5.08MM	0
20020003-G021B01LF Anytek (Amphenol Anytek)	TERM BLOCK PLUG 2POS STR 5MM	0
OQ0454500000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 4POS VERT 5.08MM	3666
VK1032500000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 10POS 3.81MM	0
20020002-H081B01LF Anytek (Amphenol Anytek)	TERM BLOCK PLUG 8POS STR 5.08MM	0
OQ0832500000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 8POS VERT 3.81MM	3014
TJ1231530000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 12POS STR 3.81MM	2558
OQ0875500000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 8POS VERT 5MM	0
OQ1053510000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 10POS 5.08MM	0
TS06515D0000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 6POS 5.08MM	0
TS09310D0000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 9POS 3.81MM	0
H50930510000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 9POS STR 3.81MM	0
KT1301540000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 13POS STR 7.62MM	0
KG1600800000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 16POS VERT 5MM	0
TJ0531830000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 5POS STR 3.81MM	0
K52351500000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 23POS 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