SMD protoboard

Project SMD protoboard
1.27mm pitch SMD protoboard
Status	Initializing
Contact	noopwafel, f0x
Last Update	2020-02-19

electroniceel's advanced protoboard has 1.27mm pitch pads for SMD components, mixed with standard 2.54mm through-holes.

We had a stack of eth0 badge.team DIY badges at the space, but we're running out.

Feb 18: f0x hacked up a design, going to try ordering HASL from JLCPCB.

Which?

Most convenient size is probably 5x3cm protoboard - the repo has gerbers already panelized and these fit 6 protoboards per 100mm*100mm panel. There are two alternative designs:

• protoboard on both sides
• protoboard on one side, ground plane on the other side

1.2mm thickness is a good compromise for weight.

Pricing

Best idea may be 200 1.2mm protoboards of 50mm*30mm: if they're willing to use HASL, JLCPCB would do this for 44eur (because we're under the 22eur VAT limit), which makes it 22c/boards. Worth a try!

Assuming 50 panels (300 protoboards):

• JLCPCB: HASL/1.2mm: approx 85eur, ENIG/1.2mm: approx 105eur including shipping/VAT. Supposedly JLCPCB don't want to manufacture these unless you choose ENIG.
• Elecrow: HASL/1.2mm: approx 105eur including shipping/VAT. Supposedly Elecrow will do these with HASL.

This basically means the raw cost is at least 35c/board (or 30c/board if we get JLCPCB to do them in HASL). Plan would be to put them in revbank: either individually, or panels (of 6).

Misc

We could spin our own custom panels with revspace logo/name (on the breakoff tabs?).