Rectangular Connectors - Headers, Receptacles, Female Sockets

Part Number	Description / PDF	Quantity
2RS2-16-G Adam Tech	RECEPTACLE STRIP 16P 2.0MM PITCH	116
DME-03-S-P-S Adam Tech	6.35MM PCB HEADER, 3 POSITION	1000
RS1-04-G Adam Tech	RECEPTACLE STRIP 4P 2.54MM PITCH	3581
MPF-A-10-SMT-T-KT-T/R Adam Tech	MINI FLEX FEMALE 10P SMD	550
HRS-2FY-18-SG-SMT Adam Tech	RECEPTACLE STRIP, 1.27MM, VERTIC	337
2RS1-16-G Adam Tech	RECEPTACLE STRIP 16P 2.0MM PITCH	409
RS2BE-08-G-SMT Adam Tech	RECEPTACLE STRIP 8P 2.54MM PITCH	0
RS1-02-G Adam Tech	RECEPTACLE STRIP 2P 2.54MM PITCH	1615
RS2-04-G Adam Tech	RECEPTACLE STRIP 4P 2.54MM PITCH	1262
HRS-1B-09-GA Adam Tech	RECEPTACLE STRIP, 1.27MM,, VERTI	546
SMC-1-10-1-GT Adam Tech	MACHINE PIN SOCKET 10P 2.54MM PI	127
HRS-2FY-08-SG-SMT Adam Tech	RECEPTACLE STRIP, 1.27MM, VERTIC	673
SMC-2-12-1-GT Adam Tech	MACHINE PIN SOCKET 12P 2.54MM PI	200
DME-F-04-S2-P-S Adam Tech	PCB MOUNT SOCKET HEADER (W/ POLA	500
2RS2-20-G Adam Tech	RECEPTACLE STRIP 20P 2.0MM PITCH	48
HRS-1B-04-GA Adam Tech	RECEPTACLE STRIP, 1.27MM, VERTIC	140
2RS1-10-G Adam Tech	RECEPTACLE STRIP 10P 2.0MM PITCH	0
MRS2-20-U-SMT Adam Tech	RECEPTACLE STRIP, 20P 1.0MM PITC	112
HRS-2B-18-GA Adam Tech	RECEPTACLE STRIP, 1.27MM, VERTIC	453
HRS-2C-12-G-SMT-P Adam Tech	RECEPTACLE STRIP 1.27MM VERT	152

Rectangular Connectors - Headers, Receptacles, Female Sockets

1. Overview

Rectangular connectors are modular electrical components designed to establish reliable connections between PCBs (Printed Circuit Boards) or electronic systems. This category includes headers (male pins), receptacles (female contacts), and sockets, which enable signal/power transmission while maintaining mechanical stability. Their standardized designs and versatility make them critical in modern electronics, from consumer devices to industrial machinery.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
Single-Row Headers	Linear arrangement of male pins	Arduino shields, sensor modules
Double-Row Headers	Dual-row pin configuration for higher density	Computer motherboards, industrial controllers
Right-Angle Receptacles	90 orientation for space-constrained designs	Compact medical devices, automotive sensors
Stacking Female Sockets	Vertical interconnection for multi-board systems	3D printer control stacks, test equipment

3. Structure and Components

Typical construction includes:

Contact Terminals: Phosphor bronze or beryllium copper with gold/tin plating for conductivity
Insulation Housing: Thermoplastic materials (e.g., LCP, Nylon 6/6) for dielectric strength
Retention Mechanism: Polarization keys and locking tabs to prevent misalignment
Mounting Options: Through-hole or surface-mount (SMT) configurations

4. Key Technical Specifications

Parameter	Value/Range	Importance
Current Rating	0.5A - 10A per contact	Determines power transmission capacity
Contact Resistance	5-20m	Affects signal integrity and thermal performance
Dielectric Strength	500V - 2500V AC	Ensures electrical safety and insulation reliability
Operating Temperature	-55 C to +125 C	Defines environmental tolerance
Mating Cycles	100 - 10,000 cycles	Indicates mechanical durability

5. Application Fields

Consumer Electronics: Smartphones, laptops, gaming consoles
Industrial Automation: PLCs, motor drives, sensor hubs
Telecommunications: 5G base stations, network routers
Medical Devices: Diagnostic equipment, patient monitors
Automotive: ECU connectors, ADAS sensors

6. Leading Manufacturers and Products

Manufacturer	Representative Product
TE Connectivity	MicroSpeed Rectangular Connectors
Molex	PicoBlade 0.8mm Headers
Amphenol	MICRO CONECTA Surface Mount Sockets
Samtec	QTRADE High-Speed Receptacles

7. Selection Guidelines

Key considerations:

Electrical requirements (current/voltage levels)
PCB space constraints and stacking needs
Environmental factors (temperature, vibration, moisture)
Cost-effectiveness vs. long-term reliability
Compliance with standards (IPC, RoHS, REACH)

Example: For automotive applications, prioritize connectors with high vibration resistance (e.g., TE Connectivity's AMPMODU series) and AEC-Q200 certification.

8. Industry Trends

Emerging directions include:

Miniaturization: Sub-1.0mm pitch connectors for wearable devices
High-speed capabilities: 10+ Gbps data rates for 5G infrastructure
Enhanced reliability: Hermetic sealing for aerospace applications
Modular designs: Tool-less hot-swap systems for data centers