Rectangular Connectors - Headers, Male Pins

Part Number	Description / PDF	Quantity
620303124022 Würth Elektronik Midcom	CONN HEADER SMD 3POS 2MM	200
61302411121 Würth Elektronik Midcom	CONN HEADER VERT 24POS 2.54MM	984
61000421121 Würth Elektronik Midcom	CONN HEADER SMD 4POS 2.54MM	580
61302511121 Würth Elektronik Midcom	CONN HEADER VERT 25POS 2.54MM	175
690357101672 Würth Elektronik Midcom	WR-MM MALE CONNECTOR WITHOUT LAT	50
662106145021 Würth Elektronik Midcom	CONN HEADER SMD R/A 6POS 3MM	400
662104136022 Würth Elektronik Midcom	CONN HEADER SMD R/A 4POS 3MM	0
61202622121 Würth Elektronik Midcom	CONN HEADER R/A 26POS 2.54MM	110
61304021021 Würth Elektronik Midcom	CONN HEADER R/A 40POS 2.54MM	86
62400821622 Würth Elektronik Midcom	CONN HEADER VERT 8POS 2MM	43
662305135922 Würth Elektronik Midcom	CONN HEADER SMD 5POS 3MM	0
64902029522 Würth Elektronik Midcom	CONN HEADER R/A 20POS 4.2MM	0
665105131822 Würth Elektronik Midcom	CONN HEADER SMD R/A 5POS 1MM	1253
662104145021 Würth Elektronik Midcom	CONN HEADER SMD R/A 4POS 3MM	1914
62404021722 Würth Elektronik Midcom	CONN HEADER R/A 40POS 2MM	0
653102131822 Würth Elektronik Midcom	CONN HEADER SMD R/A 2POS 1.25MM	2724
62401821622 Würth Elektronik Midcom	CONN HEADER VERT 18POS 2MM	0
61204022821 Würth Elektronik Midcom	CONN HEADER VERT 40POS 2.54MM	206
648105131822 Würth Elektronik Midcom	CONN HEADER SMD R/A 5POS 1.5MM	448
61205022821 Würth Elektronik Midcom	CONN HEADER VERT 50POS 2.54MM	35

Rectangular Connectors - Headers, Male Pins

1. Overview

Rectangular connectors with male pins, commonly referred to as pin headers, are modular electrical interfaces featuring parallel rows of conductive prongs enclosed in a dielectric housing. These components enable reliable signal and power transmission between PCBs (Printed Circuit Boards), cables, and subsystems. Their standardized design, ease of assembly, and scalability make them critical in modern electronics, from consumer devices to industrial machinery.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Single-Row Headers	Linear arrangement, 0.1" pitch standard, low-cost solution	Prototyping boards, Arduino shields
Double-Row Headers	Parallel dual-row configuration, higher contact density	Industrial control systems, PLC modules
High-Density Headers	Sub-0.05" pitch, optimized for miniaturization	Smartphones, medical sensors
Right-Angle Headers	90 oriented pins for vertical space optimization	Automotive ECUs, server motherboards

3. Structure and Composition

Typical male pin headers consist of:

Contact System: Phosphor bronze or beryllium copper pins with gold-plated contact areas
Insulation Housing: High-temperature resistant LCP (Liquid Crystal Polymer) or nylon material
Mechanical Features: Polarization keying, anti-wobble design, and retention latches
Mounting Options: Through-hole, SMT (Surface Mount Technology), or press-fit terminations

The contacts are arranged in standardized grids (commonly 2.54mm/0.1" pitch) with polarization features to prevent mis-mating.

4. Key Technical Specifications

Parameter	Importance
Current Rating (Amps/contact)	0.5-10A determines power handling capability
Contact Resistance (m )	10-30m affects signal integrity and power efficiency
Dielectric Withstanding Voltage	100-1000V defines insulation reliability
Operating Temperature Range	-55 C to +125 C ensures environmental durability
Insertion Force (N)	0.5-5N impacts mating cycle longevity

5. Application Fields

Consumer Electronics: Laptops, gaming consoles, smart home devices
Automotive: ECU interconnects, sensor harnesses, infotainment systems
Industrial: CNC machine controllers, robotics interfaces
Medical: Diagnostic equipment, patient monitoring systems
Telecom: Base station hardware, fiber optic transceivers

6. Leading Manufacturers and Products

Manufacturer	Representative Product
TE Connectivity	AMPMODU 205796-1 (0.05" micro pitch header)
Molex	PicoBlade 0510210400 (ultra-compact wire-to-board connector)
Amphenol ICC	10118801-01 (high-speed differential pair header)
JAE Electronics	DF11 Series (0.5mm pitch FPC-to-PCB connector)

7. Selection Guidelines

Key considerations:

Electrical requirements (current/voltage rating)
Space constraints (pitch size and profile height)
Environmental conditions (temperature, vibration, moisture)
Termination method compatibility (through-hole vs SMT)
Expected mating cycles (durability requirements)
Cost vs performance trade-offs

Example: For automotive applications, select headers with AEC-Q200 certification and 3 m gold plating for vibration resistance.

8. Industry Trends

Miniaturization: Development of 0.3mm pitch connectors for wearable devices
High-Speed Performance: Optimization for 10+ Gbps data rates in 5G infrastructure
Modular Design: Integration with hybrid power/signal transmission capabilities
Sustainability: Adoption of halogen-free materials and RoHS compliance
Smart Manufacturing: Embedded RFID tags for connector lifecycle tracking