Alpha 3051 22AWG 7 strand. Plugs into a breadboard in a pinch, though you really want to tin it beforehand. Fits the most common crimp connectors (Molex KK, SL, "Dupont", and equivalents and etc.), handles enough amps, and everyone stocks it. Or Belden or other equivalents.
Wirewrap wire is great to have on hand, and the Kynar(R) (PVDF) insulation is firm to handle, easily stripped, and reasonably resistant to soldering, making it great for patching circuits (bodge wires).
You wouldn't usually need high temperature stuff, but silicone and Teflon(R) (PTFE) are the likely suspects there. Silicone itself is rather nice for being higher temperature than neoprene rubber, but just as (or more?) flexible.
Teflon almost always comes in silver plated form, which is nice, trivial to solder (until it gets a bit of tarnish anyway). Avoid nickel plating for soldering: it's a right pain, requiring much longer to break through the oxide layer -- or using a more aggressive flux that you'll never be able to clean out of the insulation/stranding.
Tin plating is fine for pretty much everything. It can end up unsolderable from time to time. I'm not sure exactly what it is; I've removed wire from 1960s equipment even, and had it sometimes solderable, mostly not. Could be just straight-up age (more specifically, time at temp: so, a long time at room temp, but much less in hot equipment), but there must be some effect from insulation type or impurities to also account for the variation. I've also seen only-some-years-old wire that's unsolderable.
Tin plating is probably slightly better for crimps, as the oxide is conductive, and the deformation process disrupts surface oxides anyway. Definitely better for breadboarding, for the first reason (whereas copper oxides may be rectifying to insulating).
Tim
Solid and stranded wires see frequent use in electrical equipment, such as cable assemblies and wire harnesses. Solid wires consist of a solid core, whereas stranded wire consists of several thinner wires twisted into a bundle. Each has distinct advantages, with the right choice for an application depending on the specific project details. Some of the factors that may influence the choice between stranded vs. solid wire include:
Amperage load
Use case
Costs
Metal type
Wire gauge
Learning more about the difference between the two types of wires will make it easier to determine the best choice for your needs. The following information should help to inform the selection process.
These thin, bundled wires are compressed and insulated with non-conductive materials. Stranded wire is more flexible, making it ideal for connecting electronic components in cramped spaces or for twisting and bending to fit intricate geometries. Stranded wire is more flexible and malleable than solid wire, and it won’t split or sever. It is often used for indoor applications such as electronic devices, circuit boards, and speaker wires.
Solid metal core wire is a much heavier, thicker product than stranded wire. It is ideal for outdoor use where more durability and higher currents are required. This rugged, low-cost wire is resistant to weather, extreme environmental conditions, and frequent movement. It is often used for carrying high currents throughout building infrastructure, vehicle controls, and various outdoor applications.
Comparing stranded vs. solid wire involves exploring the advantages and disadvantages of the two very different types of wire. A comparison narrows down the choices based on how the specific wire characteristics relate to their expected use and the project requirements. You must first determine your application’s requirements for weather resistance, flexibility, and resistance to splitting or severing. Then, choose the wire that most closely meets those needs.
Some key differences of stranded vs. solid copper wire include:
. Solid wire is thicker, which means less surface area for dissipation. The thinner wires in stranded wire contain air gaps and greater surface area with the individual strands, translating to more dissipation. When choosing between solid or stranded wire for house wiring, the solid wire offers higher current capacity.
. Stranded wires offer superior bendability and flexibility, making them easier to route around obstacles than solid wires.
. Stranded wires are more flexible and can sustain more vibration and flexing without breaking. Solid wires may require more frequent replacement than stranded wires in applications with significant movement or vibrations.
. The production costs of solid wire are much lower than stranded wire, which makes solid wire the more affordable choice.
. The single-core nature of solid wire makes it much simpler to manufacture. Stranded wires require more complex manufacturing processes to twist the thinner wires together.
. For longer runs, solid wires are the better choice because they feature less current dissipation. Stranded wire will perform well over shorter distances.
When it comes down to stranded vs. solid wire, there is no clear choice. Each option offers distinct advantages in particular situations.
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