Rectangular Connectors - Headers, Receptacles, Female Sockets

Part Number	Description / PDF	Quantity
89882-305LF Storage & Server IO (Amphenol ICC)	CONN RCPT 5POS 0.1 GOLD PCB R/A	828
89898-316ALF Storage & Server IO (Amphenol ICC)	CONN RCPT 32POS 0.1 GOLD SMD	455
89883-402LF Storage & Server IO (Amphenol ICC)	CONN RCPT 4POS 0.1 TIN PCB R/A	90
89883-308LF Storage & Server IO (Amphenol ICC)	CONN RCPT 16POS 0.1 GOLD PCB R/A	566
63453-126LF Storage & Server IO (Amphenol ICC)	CONN RCPT 26POS 0.079 GOLD PCB	396
55510-140LF Storage & Server IO (Amphenol ICC)	CONN RCPT 40POS 0.079 GOLD SMD	706
63453-110LF Storage & Server IO (Amphenol ICC)	CONN RCPT 10POS 0.079 GOLD PCB	8509
66953-026LF Storage & Server IO (Amphenol ICC)	CONN RCPT 52POS 0.1 GOLD PCB	0
66951-035LF Storage & Server IO (Amphenol ICC)	CONN RCPT 35POS 0.1 GOLD PCB	0
91601-303LF Storage & Server IO (Amphenol ICC)	CONN RCPT 3POS 0.1 GOLD SMD	80
76341-312LF Storage & Server IO (Amphenol ICC)	CONN RCPT 12POS 0.1 GOLD PCB	12
71991-803LF Storage & Server IO (Amphenol ICC)	CONN RCPT 6POS 0.1 GOLD PCB	270
10135177-04111LF Storage & Server IO (Amphenol ICC)	CONN RCPT 4POS 0.059 TIN SMD	16
69154-313LF Storage & Server IO (Amphenol ICC)	CONN RCPT 26POS 0.1 GOLD SMD	0
55510-316TRLF Storage & Server IO (Amphenol ICC)	CONN RCPT 16POS 0.079 GOLD SMD	1155
63453-134LF Storage & Server IO (Amphenol ICC)	CONN RCPT 34POS 0.079 GOLD PCB	2836
55510-320TRLF Storage & Server IO (Amphenol ICC)	CONN RCPT 20POS 0.079 GOLD SMD	813
89898-305ALF Storage & Server IO (Amphenol ICC)	CONN RCPT 10POS 0.1 GOLD SMD	7413
71991-304LF Storage & Server IO (Amphenol ICC)	CONN RCPT 8POS 0.1 GOLD PCB	521
10136353-04111LF Storage & Server IO (Amphenol ICC)	CONN RCPT 4POS 0.059 TIN SMD R/A	526

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