Terminal Blocks - Headers, Plugs and Sockets

Part Number	Description / PDF	Quantity
NC1971800000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 19POS VERT 5MM	0
TJ1571060000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 15POS STR 5MM	0
VF0852500000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 8POS VERT 5.08MM	0
TS04A10A0000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 4POS 90DEG 7.5MM	0
KE101150A000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 10POS VERT 3.5MM	0
NB09A0850000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 9POS STR 7.5MM	0
NC1272800000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 12POS VERT 5MM	0
TS11A15D0000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 11POS 7.5MM	0
H50410800000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 4POS STR 3.5MM	17600
V712A2510000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 12POS 90DEG 7.5MM	0
TT1441500000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 14POS 3.81MM	0
TJ2071020000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 20POS STR 5MM	0
OQ02A1010000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 2POS 90DEG 7.5MM	0
OQ1000810000G Anytek (Amphenol Anytek)	TERM BLOCK HDR 10POS 7.62MM	0
NB1770840000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 17POS STR 5MM	0
OQ1471510300G Anytek (Amphenol Anytek)	TERM BLOCK HDR 14POS 90DEG 5MM	0
HW2030020000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 20POS STR 3.81MM	0
TT0821500000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 8POS 90DEG 3.5MM	0
E22211300000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 22POS STR 3.5MM	0
TS04118B0000G Anytek (Amphenol Anytek)	TERM BLOCK PLUG 4POS 3.5MM	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