Rectangular Connectors - Headers, Receptacles, Female Sockets

Part Number	Description / PDF	Quantity
69154-640LF Storage & Server IO (Amphenol ICC)	CONN RCPT 80POS 0.1 GOLD SMD	0
10119678-330LF Storage & Server IO (Amphenol ICC)	CONN RCPT 30POS 0.1 GOLD SMD	0
66956-003LF Storage & Server IO (Amphenol ICC)	CONN RCPT 6POS 0.1 GOLD PCB	0
71609-310ALF Storage & Server IO (Amphenol ICC)	CONN RCPT 20POS 0.1 GOLD SMD R/A	600
66953-029LF Storage & Server IO (Amphenol ICC)	CONN RCPT 58POS 0.1 GOLD PCB	0
66925-016 Storage & Server IO (Amphenol ICC)	CONN RCPT 32POS 0.1 GOLD PCB R/A	0
89882-346LF Storage & Server IO (Amphenol ICC)	CONN RCPT 46POS 0.1 GOLD PCB R/A	0
71920-323LF Storage & Server IO (Amphenol ICC)	CONN RCPT 23POS 0.1 GOLD PCB	0
20021323-00076D8LF Storage & Server IO (Amphenol ICC)	CONN RCPT 76POS 0.05 GOLD SMD	0
90310-106LF Storage & Server IO (Amphenol ICC)	CONN RCPT 6POS 0.079 GOLD PCB	0
76341-412LF Storage & Server IO (Amphenol ICC)	CONN RCPT 12POS 0.1 TIN PCB	0
65780-020LF Storage & Server IO (Amphenol ICC)	CONN RCPT 20POS 0.1 GOLD PCB	0
10131934-308ULF Storage & Server IO (Amphenol ICC)	CONN RCPT 8POS 0.079 GOLD PCB	0
10131932-928ULF Storage & Server IO (Amphenol ICC)	CONN RCPT 28P 0.079 TIN PCB R/A	0
20021321-00094D4LF Storage & Server IO (Amphenol ICC)	CONN RCPT 94POS 0.05 GOLD SMD	0
10131937-250ULF Storage & Server IO (Amphenol ICC)	MINITEK RECEP DR VCC SMT	0
89883-414LF Storage & Server IO (Amphenol ICC)	CONN RCPT 28POS 0.1 TIN PCB R/A	0
67227-025LF Storage & Server IO (Amphenol ICC)	CONN RCPT 50POS 0.1 GOLD PCB R/A	0
89891-313HLF Storage & Server IO (Amphenol ICC)	CONN RCPT 26POS 0.1 GOLD PCB	0
66951-030LF Storage & Server IO (Amphenol ICC)	CONN RCPT 30POS 0.1 GOLD PCB	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