28-Pin Vertical PCB Header: A Comprehensive Overview A 28-pin vertical PCB header is a fundamental interconnect component widely used in electronic circuits to establish reliable connections between printed circuit boards (PCBs) and other devices or modules. Designed for through-hole mounting, this header features 28 pins arranged in a single or dual-row configuration, providing a robust and secure interface for signal and power transmission. Key Features 1. Pin Configuration The header typically consists of 28 pins spaced at standard intervals (e.g., 2.54mm pitch), ensuring compatibility with breadboards, sockets, and connectors. Pins are arranged vertically, allowing perpendicular PCB mounting to save space and simplify wiring. 2. Material and Durability Constructed from high-quality thermoplastics (e.g., nylon or PBT) for insulation, the header ensures mechanical stability and resistance to heat, chemicals, and wear. The pins are often made of phosphor bronze or brass, plated with gold or tin for optimal conductivity and corrosion resistance. 3. Mounting Style The vertical orientation enables easy PCB insertion, making it ideal for applications requiring compact designs. The header’s through-hole design ensures strong solder joints, enhancing mechanical strength and electrical reliability. 4. Electrical Performance With low contact resistance and high current-carrying capacity (typically 1–3A per pin), the header supports stable signal integrity and power delivery. It is suitable for low-voltage digital and analog circuits. Applications - Prototyping & Development: Used in breadboards and breakout boards for testing circuits. - Consumer Electronics: Connects display modules, sensors, or peripheral boards in devices. - Industrial Equipment: Facilitates modular designs in control systems and automation. - Embedded Systems: Interfaces microcontrollers, memory modules, and communication devices. Advantages - Space-Efficient: Vertical design minimizes PCB footprint. - Versatile: Compatible with female headers, sockets, and IDC connectors. - Cost-Effective: Affordable solution for mass production and prototyping. Conclusion The 28-pin vertical PCB header is a versatile, durable, and widely adopted interconnect solution, essential for creating secure electrical connections in diverse electronic applications. Its standardized design, robust construction, and ease of integration make it a preferred choice for engineers and hobbyists alike.