AURUNA® 5400 Hard Gold Electrolyte

AURUNA® 5400 Hard Gold Electrolyte

For Depositing Uniformly Bright Coatings

AURUNA® 5400 the weakly acidic electrolyte deposits yellow, uniform bright hard gold coatings. The newly balanced brightener system of the electrolyte enables the operation in a very wide current density working range and allows a variable gold content at the same time. Due to the usage of special chemical components, the AURUNA® 5400 is equally suitable for rack and barrel application.

The deposited coatings are characterized by low porosity and an increased abrasion resistance, compared to coatings deposited in AURUNA® 539. Furthermore contacts coated with AURUNA® 5400 exhibit a low and long-time stable contact resistance and an excellent solderability. As well coatings up to 10 μm can be crack-free depositied in the electrolyte.

Electrolyte characteristics

Electrolyte type

Weakly acidic

Metal content

8 (0.5 - 12) g/l Au

pH value

4.2 (3.8 - 4.6)

Operating temperature

50 (48 - 52) °C

Current density range

2.5 (1 - 5) A/dm²

Plating speed

0.1 - 1.0 μm/min

Anode material

MMO (type PLATINODE® 167 or 177)

Coating characteristics

Coating

Gold-Cobalt

Alloy composition

99.7 wt.% Au 0.3 wt.% Co

Colour of deposit

Yellow

Brightness

Bright

Hardness of deposit

150 - 220 HV

Max. coating thickness

Crack-free up to 10 μm

Density of the coating

Approx. 17 g/cm³

Classification

Type I-II, Code C-D (equivalent to IC-IID according to MIL-G-45204C)

Solderability

ZCT < 0.2 s

Advantages

  • Very wide operating current density range
  • For technical and decorative applications
  • High corrosion and abrasion resistance
  • Low, stable contact resistance
  • Classification according to ASTM B 488-01: Type I - II, grade C -D

Applications

  • Contact pins, contact springs, contact plugs
  • Contact materials
  • Slip rings

Downloads

  • Produktblatt-auruna-5400-en-screen-20190416.pdf
    Download

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.