PROTOTYPE: xQFP protoboard with SOIC, SSOP, 0805 footprints

Today we’re super excited to announce a new QFP prototype board for SMD parts, the newest addition to our Dangerous Protoboard collection. This giant protoboard has a xQFP breakout footprint, along with a score of other pads for SMD parts. Great for getting started with a new microcontroller.

Dangerous Protoboard: xQFP. Prototype board for working with xQFP chips and SMD parts. It has footprints for:

  • 32-80pin xQFP packages, each pin brought to a header
  • SOIC(W) chips from .150″ to .3″ (max 32 pins)
  • xSSOP chips (max 32 pins)
  • Buttons with pull-up resistor input area (2x)
  • LEDs with resistor output area (8x)
  • SMD or through hole crystal with capacitors
  • SOT-23-3/5/6 (6x)
  • 0805 R and C (8x, plus extras near IC footprints)
  • DO-323 (8x)
  • 24×10 pin through-hole prototype area
  • Power bus routed near all components
  • Silk labels on top and bottom
  • Open source (CC-BY-SA)
  • Design files

Currently available in 0.50mm, 0.65mm, and 0.80mm for $10.

Don’t know your size? See choosing a prototype board.

We’re super proud of this board, it’s something we use all the time to develop our own projects. What makes Dangerous Protoboards unique?

  • Developed and constantly refined during real-world use prototyping our projects
  • An open source licensed protoboard collection (CC-BY-SA), maybe the only one
  • Each sale supports our efforts to buy a USB VID

We’re giving away a couple of these to celebrate the launch, just ask for one in the comments.

Join the Conversation


      1. I wonder how universal the pin spacing is, the side landings certainly aren’t. I source the least expensive in 100 quantity USB minis that I could find but they are different than the ones you use for certain in terms of the overall footprint.

  1. I have at least one breakout board that has one package pitch on the top, and another on the bottom. Could you do the same thing with the QFP area without much trouble (0.5mm on top, 0.65m on bottom), or would that get you in trouble electrically? (nice antennas, eh?)

    1. We are in the process of investigating this on the smaller xQFP breakouts. It seems handy to have two sizes instead of one.

      The antenna point is valid. We use these for a quick evaluation of a circuit or chip without making a PCB order, so they don’t see extended or extreme use (low speed, usually under debugger control). Any attached peripherals have long fly wires anyways. For us it is probably ok, but I can also see where it would cause a problem outside lab debugging.

  2. Was thinking of designing something similar, but you beat me to it. Would like to have one if possible.

  3. Cool design ;P

    I like to add the PTH area can be mis-used as protoarea for 0603 components also :) 0805 is doable but they are a little to big. We are also in the process of designing a 0805 or 0603 proto-area (like the PTH-area here).

  4. Great for any ARM micro prototyping as they only come in SMD packages (afaik). If you have any send one my way, 0.50mm.

  5. This is an awesome idea. Way easier than my current method of hooking different breakout boards together by jumpers or wires and then trying to control them to avoid touching/shorting, etc…
    I, too, love the idea of having the USB on board.
    I’d love a sample of the .80mm if possible! Thanks.

  6. Are the white lines between the different sections silkscreen lines, or are they v-scores?

      1. Yes, it just seemed to me to be 10 different mini-proto/adaptor boards all in a common outline. I would probably want to use at least some of the sub-sections in different projects. Now, I can cut it apart on the bandsaw but that’s messy and the sawblade will inevitably consume at least part of the pads closest to the edge. But an accurate V-score you would get to keep essentially all of the board area, and subdivide it as you find most useful.

        I don’t know how much v-scoring adds to your cost, but at least if it’s a big seller, maybe you could eventually offer both versions, with and without scoring.

  7. I’ll take a sample if you have any left :).

    I really like everything about it, the included crystal pad is nice. I have a urge to try putting one of the larger MSP430 LQFP’s on it to make a simple development board, and program it with my launchpad. The 14 pin DIP’s are getting a bit boring :).

    off-topic, but do you guys have anything planned with the Wiznet chips? would love to see a simple/cheap breakout board for them.

  8. cool boards ! i like that !
    surely very handy for a prototype :-)
    i will really like to try some .80mm :o)

  9. fwiw
    “Jump” Scoring… You may have heard this popular term before. It refers to the ability to program a certain length for a score line and then “jump” over a certain programmed distance (section of the board). The use of “jump” scoring can provide a rigid assembly panel, that can be de-paneled easily without damage to even the most sensitive solder joints. With the proper application of this capability, coupled with the use of rails, virtually any assembly goal can be achieved.
    “Pocket Guide to V-Scoring” from vscore dot biz

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