Terminal Blocks - Headers, Plugs and Sockets

Part Number	Description / PDF	Quantity
36.120 Altech Corporation	PCB PLUG 20P 5.08MM VERT AKZ1200	0
PH08-10,16-K Altech Corporation	PCB HORIZHDRSCREW FLANGE 1016PS	0
PVP11-3,81 Altech Corporation	PCB HEADER 11P 381MM VERTICAL 11	200
37.617 Altech Corporation	PCB HEADER 17 P 5.00MM STL950/17	0
PV13-5,00 Altech Corporation	VERTHDR 5MMPIN 13POPEN END12A300	0
SVR20-5,00 Altech Corporation	PLUG PCB 500MMPS VERT 20P 12A300	0
PDV05-3,50-H-M Altech Corporation	PCB DUAL ROW HDR 5P 350MM HORIZO	0
PVP24-3,50 Altech Corporation	PCB HEADER 24P 350MM VERTICAL 11	0
30.331 Altech Corporation	TERM PLUG 11 P 5MM GRYBL 9A 150V	0
PHP15-5,08 Altech Corporation	PCB HEADER508MMPSCLOSED END 15PH	420
PV11-10,16 Altech Corporation	PCB HDR VERT 1016MMPS OPEN END11	0
SVP05-3,50-K Altech Corporation	PLUG PCB 5P 350MM VERT 11A 300V	0
37.607 Altech Corporation	PCB HEADER 7 P 5.00MM STL950/07G	0
PDSV22-5,08 Altech Corporation	DOUBLE LVL HDR VERT 44P 508MMPS1	90
PDV10-3,50-H-M Altech Corporation	PCB DUAL ROW HDR 10P 350MM HORIZ	0
PHP05-10,00 Altech Corporation	PCB HDR HORIZ 10MMPS 5PCLOSED EN	0
PHP13-3,50 Altech Corporation	PCB HEADER 13P 350MM HORIZONTAL	40
SVP07-3,81 Altech Corporation	PLUG PCB 7P 381MM VERT 11A 300V	0
PDV08-3,81-H-P Altech Corporation	PCB DUAL ROW HDR 8P 381MM HORIZO	0
PH02-5,08 Altech Corporation	PCB HORIZ HDR508MMPS 2POPEN END1	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