Flat wire

Dimensions:
From 0.10 to 4.5 mm

We are always open to new surfaces (for example, to ensure better whisker protection in electronic applications). Please contact us for more information!

Tin [Sn]
Tin [Sn]

The spread of electricity in the mid-19th century led to a huge rise in the demand for cable conductors. At the time, it proved difficult to find appropriate insulating materials. Latex, rubber or rubber-based materials were mostly used, sometimes reinforced with textiles. In practice, these materials were very unpopular, as the copper reacted with the sulphurous components of the rubber coating, which made removing the latter considerably more difficult. However, prior tin plating of the copper wire before insulation was an effective way of preventing this reaction, allowing simple and clean removal of the synthetic materials. Thus, tin plating was soon universally accepted as the surface of choice for copper wires. In addition, tin-plated wire showed better solderability as well as good lubricating properties during drawing.

Since the development of modern, PVC-based insulators that no longer react with the copper wire, tin plating has lost its former importance for the cable industry. Yet despite this, tin-plated wire is still regarded as a premium product that is ideal for military and other critical applications. And although for the most part bare copper wires are meanwhile favoured for automotive industry cables, tin-plated wires are still the preferred solution in safety-critical areas such as airbags.

Tin plating is carried out in two different ways. On the one hand, the wire can be run through liquid tin, which is deposited on the cold surface. We do not offer this type of tin plating because the deposition parameters are difficult to monitor, leading to irregular coatings that fail to meet the requirements of today’s customers.

On the other hand, tin plating can be performed using conventional electroplating technology. This entails dissolving tin anodically in electrolytes (usually acid) and depositing it cathodically on the material. A further advantage of this method is the high level of purity of the tin plating. The requirements with regard to layer quality have in many cases increased significantly in recent years, reflecting the need to conform with RoHS and WEEE regulations.

Electrolytically tin-plated flat wires for all areas of electrical engineering including highly automated soldering processes. Also suitable as protection when processing aggressive plastics. Optionally with a nickel or copper barrier layer. Packaging: Spools or coils 

Profiled and square wires on request, fused tin surfaces also possible.

Dimensional range (Sn)
Flat wires on request

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Silver [Ag]
Silver [Ag]

Silver-plated copper wires for the cable industry with up to 100 g/kg of plating. Silver-plated coaxial conductor centres for HF technology. Switch and connector wires for electronic components as well as profiled wires for busbars. Silver-plated, drawn bronze or steel wires for electrical contacts.

Dimensional range (Ag):
Flat wires on request

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Nickel [Ni]
Nickel [Ni]

Non-porous, nickel-plated copper wires in line with ASTM standards, with up to 27% nickel by weight . Nickel-plated wires for protection against thermal stresses up to approx. 400°C or against corrosive evaporation of plastics in electrical engineering and electric current carriers. Nickel-plated iron wires with up to 4% nickel by weight . Decorative, flexible, bright nickel layers on iron or steel wires for bulk wire products.

Dimensional range (Ni):
Flat wires on request

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Gold [Au]
Gold [Au]

Tarnish-proof contact, spring and connector wires made from copper, pure nickel or alloys, stainless steels with a fine gold plating up to 1 µm thick. Can also be manufactured with a nickel barrier or with a copper or silver interface layer for increased electrical conductivity.

Dimensional range (Au):
Flat wires on request

The gold layers can be supplied as hard gold according to MIL G45204C Type 1 Grade C.

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Copper [Cu]
Copper [Cu]

The copper serves as a barrier and carrier layer for further electroplating. It also aids drawing in the case of special alloys.

Dimensional range (Cu):
Flat wires on request

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BRENOVO
BRENOVO

On request!

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