Octopart Pocket Electronics Reference PCB

Perfectly sized for your wallet, this small PCB has a beautifully silkscreened resistor color chart on one side, and comprehensive SMT reference on the other.

$5,284 raised

of $2,000 goal

264% Funded!
Not Available
Oct 11 2013
funded on

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No circuit tinkerer should be far from a resistor color chart. We’ve engineered the perfect chart. It’s easy to use, and makes intuitive sense even to beginners. Reading the chart is super fast, just read the colors from left to right, and add in a decimal point when indicated by the final color’s tail.

You thought you could only use one silkscreen color at a time on a PCB, didn’t you? You thought wrong. This chart has brilliant, attractive colors. We think we’ve set a record for the number of silkscreened colors on a PCB: eight!

For those hackers who have said their goodbyes to through-hole parts, the backside of the card features a visual to-scale reference of footprints for common surface mount packages.

The PCBs will be the same size and thickness of a credit card, 3.38" x 2.13" x 0.03" (86mm x 54mm x 0.76mm). Most PCB’s are thicker, this one will slide right into your wallet, no problem. The photos shown with the color silkscreening are mockups, but we have already done a prototype run of the PCBs.

This reference board is brought to you by Octopart, the electronics part search site and API for electronic part data.


The PCBs will be same size and thickness of a credit card:
3.38" x 2.13" x 0.03" (86mm x 54mm x 0.76mm)

Risks & Challenges

Since we are pushing the limit of the number of silkscreened colors on a PCB, there is a chance that we’ll run into problems with the printing. However, we’ve been in close contact with a top tier silkscreen shop and we’re confident that we’ll be able to deliver a quality print.

In the Press

The Amp Hour

"It’s made out of FR4 and has some serious silkscreening!"


"Apparently they used eight colors during the screen printing process–impressive for a PCB!"

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Produced by Octopart in New York City, NY.

Sold and shipped by Crowd Supply.

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One Reference PCB

$9 $8 US Shipping / $18 Worldwide

Set of Four Reference PCBs

$32 $8 US Shipping / $18 Worldwide

Uncut PCB Panel

$400 $8 US Shipping / $18 Worldwide

About the Team


New York City, NY  ·   octopart.com

Octopart is a search engine for electronics parts, aiming to serve both hobbyists and electrical engineering professionals.

Sam Wurzel

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