These have been replaced by a new and improved version, offering support for more packages than ever, with more convenience features to make using QFN's less unpleasant.

These offer a new take on breakout boards for SMD devices by breaking the pins out to groups of 2 or 3 holes each, instead of the single hole provided on typical breakout boards. This, combined with the exposed and accessible ground trace around the perimeter, allows some supporting components to be included right on the breakout board without interfering with connections to other parts of your project.

Breakout boards for quad flat packages

These prototyping breakout boards are available in three versions, corresponding to 20-pin, 28-pin, and 32-pin quad flat packages. QFN and VQFN packages often have an exposed pad on the underside (typically connected to ground) - for these packages, an exposed pad is provided, tied to the mounting holes and exposed trace along the perimeter. While QFN and VQFN are never fun to solder by hand, these quality breakout boards will help you use use parts in these packages effectively for prototypes and one-off projects, without having to make a custom PCB for your project - or being charged so much for a breakout board that you might as well made your own PCB.

TQFP-32/QFN-32 - Two-pack of boards supporting either TQFP-32 or 0.65 mm pitch QFN-32

QFN-28/VQFN-32 - Two-pack of boards supporting either QFN-28 ( 0.65mm pitch) or VQFN-28 ( 0.45mm pitch). Shown in the picture is a board with an ATtiny88-MU (QFN package) mounted along with supporting components.

QFN-20/VQFN-20 - Three-pack of boards supporting either QFN-20 ( 0.65mm pitch) or VQFN-20 ( 0.5mm pitch - aka MLF-20). Board shown in picture has ATtiny1634-MU (MLF-20 package) mounted along with supporting components including external crystal. Discounted version available: Due to a typographical error, the silkscreen on these boards incorrectly identifies them as QFN/VQFN-25. A new version of these boards with corrected silkscreen and better panelization is now available, so the old ones are available (while supplies last) at special 2-for-1 pricing!

Similar products

Similar breakout boards for other exotic SMD footprints including 0.5mm pitch DFN/MSOP-16, 0.65mm pitch DFN/MSOP/WSON-16 with and without exposed pads, VQFN-16, 4mm x 5mm rectangular QFN-28, and TSSOP-28 with exposed pad