Rectangular Connectors - Headers, Receptacles, Female Sockets

Part Number	Description / PDF	Quantity
15220802601000 HARTING	CONN RCPT 80POS 0.05 GOLD SMD	0
15620122601000 HARTING	HAR-FLEX POWER STRAIGHT FEMALE,	0
15220682601000 HARTING	CONN RCPT 68POS 0.05 GOLD SMD	340
15220122401000 HARTING	CONN RCPT 12POS 0.05 GOLD SMD	204
27211218004 HARTING	CONN 10POS 0.079 GOLD PCB R/A	0
15220162601000 HARTING	CONN RCPT 16POS 0.05 GOLD SMD	704
09465004402 HARTING	HARTING PUSHPULL V4 POWER 4/0 IN	0
15230162601000 HARTING	HAR-FLEX STR F 13.65MM 16P PL1	165
15250122601000 HARTING	CONN RCPT 12POS 0.05 SMD R/A	553
15220062601000 HARTING	CONN RCPT 6POS 0.05 GOLD SMD	226
15230502601000 HARTING	HAR-FLEX STR F 13.65MM 50P PL1	170
15220262601000 HARTING	CONN RCPT 26POS 0.05 GOLD SMD	274
15210162401000 HARTING	CONN RCPT 16POS 0.05 GOLD SMD	134
15250202601000 HARTING	CONN RCPT 20POS 0.05 SMD R/A	123
15824162601000 HARTING	HAR-FLEX HYBRID STRAIGHT FEMALE,	0
15210162601000 HARTING	CONN RCPT 16POS 0.05 GOLD SMD	791
15650122601000 HARTING	HAR-FLEX POWER ANGLED FEMALE, 12	0
15250162601000 HARTING	CONN RCPT 16POS 0.05 SMD R/A	180
15210202401000 HARTING	CONN RCPT 20POS 0.05 GOLD SMD	91
15828362601000 HARTING	HAR-FLEX HYBRID STRAIGHT FEMALE,	280

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