Rectangular Connectors - Headers, Receptacles, Female Sockets

Part Number	Description / PDF	Quantity
15828362701000 HARTING	HAR-FLEX HYBRID STRAIGHT FEMALE,	0
15220162401000 HARTING	CONN RCPT 16POS 0.05 GOLD SMD	201
15230802601000 HARTING	HAR-FLEX STR F 13.65MM 80P PL1	170
15220402601000 HARTING	CONN RCPT 40POS 0.05 GOLD SMD	30
15210262601000 HARTING	CONN RCPT 26POS 0.05 GOLD SMD	2987
02529091101 HARTING	HAR MODULAR C9 MODULE FEMALE STR	100
09465004400 HARTING	CONN 4POSPCB R/A	327
15220122601000 HARTING	CONN RCPT 12POS 0.05 GOLD SMD	401
15250402601000 HARTING	CONN RCPT 40POS 0.05 SMD R/A	173
15211002601000 HARTING	CONN RCPT 100POS 0.05 GOLD SMD	331
15250802601000 HARTING	CONN RCPT 80POS 0.05 SMD R/A	64
15210342601000 HARTING	HAR-FLEX STRAIGHT FEMALE 6.25MM,	0
15210686601000 HARTING	CONN RCPT 68POS 0.05 GOLD SMD	0
15220582601000 HARTING	HAR-FLEX STRAIGHT FEMALE 9.05MM,	0
15250182601000 HARTING	HAR-FLEX ANGLED FEMALE, 18PIN, P	0
15210326601000 HARTING	CONN RCPT 32POS 0.05 GOLD SMD	0
15210085601000 HARTING	CONN RCPT 8POS 0.05 GOLD SMD	0
15221002401000 HARTING	CONN RCPT 100POS 0.05 GOLD SMD	0
15210265601000 HARTING	CONN RCPT 26POS 0.05 GOLD SMD	0
15210582601000 HARTING	HAR-FLEX STRAIGHT FEMALE 6.25MM,	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