The 7Semi QFN-28 SMD to DIP Adapter Board is designed to convert standard QFN-28 (28-pin) IC packages into a 2.54mm (0.1") DIP format, allowing easy use with breadboards and prototyping systems.
This adapter supports QFN-28 ICs with standard footprint and pitch, ensuring proper alignment and reliable soldering. It is ideal for testing and developing circuits using compact microcontrollers without requiring a custom PCB.
Common QFN-28 ICs that fit this adapter include examples from popular MCU families such as:
• Microchip PIC series (QFN-28 variants)
• Silicon Labs EFM8 series
• STM32 low-pin-count QFN MCUs
The board features clearly marked pins and a dual-row breakout layout, making wiring simple and reducing chances of connection errors during development.
Features
• Designed specifically for QFN-28 (28-pin) IC packages
• Converts to standard 2.54mm DIP spacing
• Compatible with TQFN, VQFN, DQFN (28-pin variants)
• Accurate footprint alignment for proper IC placement
• Clear Pin 1 marking and numbering
• Dual-row breakout for easy wiring
• Breadboard compatible design
• Strong solder pads for reliable connections
• Ideal for prototyping, testing, and development
• Compatibility: Standard QFN-28 footprint ICs only
• Not Supported: QFN-20, QFN-32, BGA, LGA or non-QFN packages
Resources
QFN-28 0.5mm Breakout Board 3D Step File
