Rectangular Connectors - Headers, Receptacles, Female Sockets

Part Number	Description / PDF	Quantity
ESMC-F-50-SGS-SMT-C-PP-T/R Adam Tech	CONN RCPT VERT SMT 50POS 1.27MM	200
RS2BE-04-G-SMT Adam Tech	RECEPTACLE STRIP 4P 2.54MM PITCH	555
HRS-2C-16-SG-SMT-P Adam Tech	RECEPTACLE STRIP, 1.27MM, VERTIC	0
SMC-1-05-1-GT Adam Tech	MACHINE PIN SOCKET 5P 2.54MM PIT	0
ESMC-F-16-SGR-SMT-T/R Adam Tech	CONN RCPT R/A SMT 16POS 1.27MM	700
ESMC-F-50-SGS-SMT-A-PP-T/R Adam Tech	CONN RCPT VERT SMT 50POS 1.27MM	530
ESMC-F-16-SGS-SMT-C-PP-T/R Adam Tech	CONN RCPT VERT SMT 16POS 1.27MM	200
ESMC-F-32-SGS-SMT-B-PP-T/R Adam Tech	CONN RCPT VERT SMT 32POS 1.27MM	400
HRS-2C-14-SG-SMT-P Adam Tech	RECEPTACLE STRIP, 1.27MM, VERTIC	0
ESMC-F-68-SGS-SMT-C-PP-T/R Adam Tech	CONN RCPT VERT SMT 68POS 1.27MM	1400
DME-F-12-S2-SQ Adam Tech	PCB MOUNT SOCKET HEADER (W/OUT P	1000
ESMC-F-80-SGS-SMT-A-PP-T/R Adam Tech	CONN RCPT VERT SMT 80POS 1.27MM	540
ESMC-F-32-SGS-SMT-A-PP-T/R Adam Tech	CONN RCPT VERT SMT 32POS 1.27MM	550
HRS-2B-04-GA Adam Tech	RECEPTACLE STRIP, 1.27MM, VERTIC	2296
ESMC-F-12-SGR-SMT-T/R Adam Tech	CONN RCPT R/A SMT 12POS 1.27MM	700
ESMC-F-68-SGS-SMT-B-PP-T/R Adam Tech	CONN RCPT VERT SMT 68POS 1.27MM	400
ESMC-F-40-SGR-SMT-T/R Adam Tech	CONN RCPT R/A SMT 40POS 1.27MM	700
RS2BE-06-G-SMT Adam Tech	RECEPTACLE STRIP 6P 2.54MM PITCH	340
ESMC-F-26-SGR-SMT-T/R Adam Tech	CONN RCPT R/A SMT 26POS 1.27MM	700
RS2-10-G Adam Tech	RECEPTACLE STRIP 10P 2.54MM PITC	1087

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