RHODUNA®-Alloy 1 Technical Rhodium-Ruthenium-Electrolyte

RHODUNA®-Alloy 1 Technical Rhodium-Ruthenium-Electrolyte

Meets the new requirements for wearables and mobile phones

Ease of use, attractive design and strong performance have always been the main arguments for buying wearables and mobile phones. But more and more important are the small differences such as a long lifetime and compatibility with fast chargers.

These expectations cannot be fulfilled with gold-plated charging contacts & connectors (USB-C, Pogo Pin, etc.). Gold-plated contacts corrode during the charging process if they have been in contact with salt water, swimming pool water, sweat or beverages, which leads to numerous complaints and the costly replacement of damaged devices.

If the contacts are coated with RHODUNA®-Alloy 1, they are protected against corrosion. This does not affect the ability of the devices to charge quickly. RHODUNA®-Alloy 1 has been used since 2016 for electronic contacts in reel-to-reel equipment as well as in barrel and rack operation in series production.

Further information

Electrolyte characteristics

Electrolyte type

Strongly acidic

Metal content

1.6 to 10 g/l Rh 0.1 to 0.5 g/l Ru

Operating temperature

45 (40 - 50) °C

Current density range

2 - 50 A/dm²

Plating speed

approx. 0.84 μm/min (6 A/dm²) approx. 1.02 μm/min (10 A/dm²) approx. 1.29 μm/min (20 A/dm²)

Coating characteristics

Coating

Rhodium-ruthenium

Alloy composition

70 - 98 % Rh 2 - 30 % Ru

Colour of deposit

White

Brightness

Bright

Hardness

900 HV

Density of the coating

approx. 12.4 g/cm3

Advantages

  • Very light, white and ultra-bright coatings
  • Uniform layer thickness
  • Crack-free up to 4 μm
  • Wide operating range
  • Extremely abrasion-resistant (Hardness of > 900 HV)
  • Less expensive than pure rhodium layers
  • Protects reliably against corrosion
  • No influence on fast charging
  • Suitable for reel-to-reel, rack and barrel

Applications

  • Smartwatches
  • Headphones (In-Ears)
  • Mobile phones
  • Fitness tracker
  • Plug contacts

Downloads

  • Produktblatt-rhoduna-alloy-1-technisch-en.pdf
    Download

 RHODUNA®-Alloy 1 Technical Rhodium-Ruthenium-Electrolyte

Your contact person

Markus Legeler

Manager Sales International
T: +49 7171 607 204
F: +49 7171 607 316
Email

Find a representative in your region

×

      Umicore uses certain monitoring and tracking technologies such as cookies. These technologies are used in order to maintain, provide and improve our services on an ongoing basis, and in order to provide our web visitors with a better experience.

      By clicking on the "Accept all" button you agree to the use of these cookies while using the website. For further information regarding how we use cookies and other tracking technologies, please see section 10 of our website privacy notice

          Necessary cookies are essential and help you navigate our website. This helps to support security and basic functionality and are necessary for the proper operation of our website, so if you block these cookies we cannot guarantee your use or the security during your visit.

          Cookies that help us to understand the behaviour of users of our website. This allows us to continuously improve our website to provide the best information in support of our project aims. These cookies also help us understand the effectiveness of our website. For instance these cookies tell us which pages visitors go to most often and if they get error messages from web pages.

          Cookies that deliver content to you based on your interests, which are assumed from your browsing history. Most Targeting Cookies track users via their IP address and, thus, may collect some Personal Data. Personal Data collected by Targeting Cookies may be shared with third parties, such as advertisers.