10
\$\begingroup\$

What is the best way to solder these stranded wires onto a vero board (strip board)?

I am thinking maybe using some kind of connector instead of just soldering on. It will make things more flexible. I also want it to look semi professional.

If using connectors, what connectors would be the best?

Stranded wires

\$\endgroup\$
  • 2
    \$\begingroup\$ Spring loaded terminal blocks? \$\endgroup\$ – venny Sep 19 '14 at 10:09
  • 1
    \$\begingroup\$ How thick are the cables? \$\endgroup\$ – venny Sep 19 '14 at 10:19
  • 1
    \$\begingroup\$ What's the wire gauge/diameter and the insulation diameter? \$\endgroup\$ – EM Fields Sep 19 '14 at 11:05
  • \$\begingroup\$ About 22 gauge I think - not exactly sure. But the strands can easily fit through the holes in a typical strip board. \$\endgroup\$ – T.K. Sep 19 '14 at 11:32
  • 2
    \$\begingroup\$ "Semi professional" - what does this realistically mean - I've seen wires like this soldered directly to PCBs on "pro" equipment. \$\endgroup\$ – Andy aka Sep 19 '14 at 12:39
18
\$\begingroup\$

If you do want to solder them directly, you can make it more robust (and marginally better looking) by drilling holes wide enough for the wire + insulation to fit snugly, looping the wires through those holes and then soldering them. This provides strain relief so that the solder joint isn't taking a significant mechanical load.

This is illustrated below, but you can also have the holes closer together, the other way round, etc - whatever's convenient. Strain relief Image credit: Windell Oskay, CC-BY

\$\endgroup\$
7
\$\begingroup\$

You could solder 0.1" pitch headers onto the board. Then use crimp terminals on a mating connector.

Molex KK connectors are a common type, but there are many compatibles from other manufacturers. You'll need a suitable crimping tool, but after that investment the costs are low.

http://www.molex.com/molex/products/family?key=kk_254_rpc_connector_system&channel=products&chanName=family&pageTitle=Introduction&parentKey=wire_to_board_connectors

ehttp://www.molex.com/molex/products/family?key=kk_254_rpc_connector_system&channel=products&chanName=family&pageTitle=Introduction&parentKey=wire_to_board_connectors

\$\endgroup\$
  • \$\begingroup\$ Very helpful answer. These crimp terminals hold the rubber-layer of the wire. so they are much safer than just ordinary soldering. \$\endgroup\$ – Always Confused Jun 1 '16 at 9:33
4
\$\begingroup\$

Here is why wire-joints often easily cut-off from the board.

wire joint Fig : A. Why wire easily breaks-off. Whole mechanical stress on the delicate copper strands.

B. Fastening the insulating cover of the wire, with the substrate of the board, (or with the insulator of another wire in case of wire-wire connections) using a strong, solid system, reduce the chance of cutoff.

If you could understand why the wires cut-off at joints, you could find-out ways to eliminate this.

previously mentioned solutions by other users, based upon this way of stress removal. The grey layer indicates solder.

However, in test gadgets (not professional) i use narrowly cut (2mm to 1 cm wide) pieces of paper tapes (masking tape) , or tie with threads using the excess holes of the veroboard

By the way, terminus of the wire is twisted before soldering, so that loose strand-ends do-not cause short-circuits. Image of wire terminus from wikipedia Image of wire terminus from wikipedia

\$\endgroup\$
3
\$\begingroup\$

You could try Configurable Spring Terminal Blocks from Adafruit Industries http://www.adafruit.com/product/1074 or 2/3 pin- 3.5mm Terminal Blocks http://www.adafruit.com/product/724 that snap together. I have used these on Arduino projects and the work nicely.

\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.