Rectangular Connectors - Headers, Receptacles, Female Sockets

Part Number	Description / PDF	Quantity
0022182041 Woodhead - Molex	CONN RCPT 4POS 0.1 GOLD PCB	1809
5054061660 Woodhead - Molex	CONN RCPT 16POS 0.059 GOLD SMD	707
0009483075 Woodhead - Molex	CONN RCPT 7P 0.156 GOLD EDGE MNT	1179
0009483035 Woodhead - Molex	CONN RCPT 3P 0.156 GOLD EDGE MNT	51096237
0010845151 Woodhead - Molex	CONN HDR 15POS 0.25 TIN PCB	0
0872644652 Woodhead - Molex	CONN RCPT 46P 0.079 GOLD PCB R/A	0
5031481890 Woodhead - Molex	CONN RCPT 18P 0.059 TIN SMD R/A	5813
5031481290 Woodhead - Molex	CONN RCPT 12P 0.059 TIN SMD R/A	2191
0873681024 Woodhead - Molex	CONN RCPT 10P 0.079 GOLD SMD R/A	0
5031541690 Woodhead - Molex	CONN RCPT 16POS 0.059 TIN SMD	1830
0873401019 Woodhead - Molex	CONN RCPT 10POS 0.079 GOLD SMD	1270
0022142044 Woodhead - Molex	CONN RCPT 4POS 0.1 TIN PCB	15
0447642201 Woodhead - Molex	CONN RCPT 22P 0.118 TIN PCB R/A	0
5054050270 Woodhead - Molex	CONN RCPT 2POS 0.059 GOLD SMD	988
5023860870 Woodhead - Molex	CONN RCPT 8POS 0.049 TIN SMD R/A	6055
0872643652 Woodhead - Molex	CONN RCPT 36P 0.079 GOLD PCB R/A	0
0791077013 Woodhead - Molex	CONN RCPT 28POS 0.079 GOLD PCB	0
0872642652 Woodhead - Molex	CONN RCPT 26P 0.079 GOLD PCB R/A	1064
5023860470 Woodhead - Molex	CONN RCPT 4POS 0.049 TIN SMD R/A	3904
2132271410 Woodhead - Molex	CLIK-MATE1.5 DRVT SMT AU0.1 ETP	0

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