Rectangular Connectors - Headers, Receptacles, Female Sockets

Part Number	Description / PDF	Quantity
0447691603 Woodhead - Molex	CONN RCPT 16POS 0.118 GOLD PCB	0
0009483155 Woodhead - Molex	CONN RCPT 15P 0.156 GOLD EDGE MT	992
0872643052 Woodhead - Molex	CONN RCPT 30P 0.079 GOLD PCB R/A	0
0872642052 Woodhead - Molex	CONN RCPT 20P 0.079 GOLD PCB R/A	4076
0448120025 Woodhead - Molex	CONN RCPT 7POS 0.1 GOLD PCB	0
5023861570 Woodhead - Molex	CONN RCPT 15P 0.049 TIN SMD R/A	989
5025840360 Woodhead - Molex	CONN RCPT 3POS 0.059 TIN SMD	8556
0901471102 Woodhead - Molex	CONN RCPT 2POS 0.1 TIN PCB	5732
5023820471 Woodhead - Molex	CONN RCPT 4POS 0.049 GOLD SMD	0
0448120021 Woodhead - Molex	CONN RCPT 3POS 0.1 GOLD PCB	632
0022152076 Woodhead - Molex	CONN RCPT 7POS 0.1 TIN EDGE MNT	1679
0022027043 Woodhead - Molex	CONN RCPT 4POS 0.1 TIN PCB	643
5025840860 Woodhead - Molex	CONN RCPT 8POS 0.059 TIN SMD	0
0009484129 Woodhead - Molex	CONN RCPT 12POS 0.156 TIN PCB	0
0901471108 Woodhead - Molex	CONN RCPT 8POS 0.1 TIN PCB	1517
0447691801 Woodhead - Molex	CONN RCPT 18POS 0.118 TIN PCB	0
5024430270 Woodhead - Molex	CONN RCPT 2POS 0.079 TIN SMD	3217
0010181091 Woodhead - Molex	CONN HDR 9POS 0.198 TIN PCB	0
0009484059 Woodhead - Molex	CONN RCPT 5POS 0.156 TIN PCB	1157
0447690602 Woodhead - Molex	CONN RCPT 6POS 0.118 GOLD PCB	5149

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