7Semi 2.0mm to 2.54mm Pitch Dual Row PCB Adapter Board for Breadboard and Prototype Integration
This dual-row PCB adapter board from 7Semi bridges the gap between 2.0mm fine-pitch headers and the standard 2.54mm (0.1-inch) pitch used in most prototyping environments. It is a compact, through-hole solution that allows engineers and developers to connect modules, connectors, or pin headers with differing pitch standards without custom wiring or PCB redesign. The board supports both male and female header configurations, making it well-suited for integration into development setups where space efficiency and signal reliability are priorities.
Designed for repeated use across prototyping and system integration tasks, this adapter board features clearly marked pin numbers for straightforward orientation and a robust PCB construction that withstands regular plug-and-unplug cycles. Its breadboard-compatible 2.54mm output pitch allows direct insertion into standard solderless breadboards and development boards such as Arduino and Raspberry Pi. The dual-row through-hole layout provides ample mechanical support once headers are soldered, ensuring stable, low-resistance connections throughout the project lifecycle.
Key Features
- Pitch Conversion: Converts 2.0mm fine-pitch pin spacing to standard 2.54mm (0.1-inch) pitch for seamless cross-compatibility between connectors and modules
- Dual-Row Through-Hole Layout: Accommodates dual-row male or female pin headers for secure, solder-in mounting on both sides of the board
- Breadboard-Compatible Output: 2.54mm pitch output aligns directly with standard solderless breadboards and prototyping shields
- Clearly Marked Pin Numbers: Numbered pin labels printed on the PCB surface for quick identification and error-free wiring during assembly
- Compact Form Factor: Small footprint minimises occupied board space, enabling use in space-constrained enclosures and stacked prototyping setups
- Robust PCB Construction: High-quality FR4 PCB material with reliable copper plating for long-term, repeated use without signal degradation
- No Complex Wiring Required: Direct pin-to-pin pitch conversion eliminates the need for manual wire adaptation or custom cable assemblies
- Mounting Holes: On-board mounting holes allow secure mechanical fastening to enclosures or carrier boards
Applications
- Converting 2.0mm pitch sensor modules, Bluetooth modules, or GPS modules to 2.54mm breadboard-compatible headers
- Interfacing fine-pitch ribbon cable connectors with standard 2.54mm development boards
- Rapid prototyping setups where 2.0mm-pitch components must connect to Arduino, STM32, ESP32, or Raspberry Pi GPIO headers
- USB-to-serial and UART module adaptation in embedded development workflows
- Educational electronics labs requiring flexible header pitch adaptation
- Small-batch PCB testing and pre-production validation
