NIPHOS® 965 Nickel-Phosphorus Electrolyte for Connectors

Coating system for connectors

With NIPHOS® 965 nickel-phosphorus alloy layers can be deposited in reel-to-reel electroplating systems or other high speed systems. In comparison to high-phosphorus containing electroless nickel layers, nickel-phosphorus layers produced by electrolytes are amorphous, diamagnetic, abrasion and corrosion resistant as well.

It is possible to work with soluble anodes (nickel), insoluble anodes (platinum-plated titanium or MMO) or a combination of both.  The lifetime is almost unlimited and corresponds to the one of bright nickel electrolytes.

NIPHOS® is insensitive to contaminations with metallic particles. In contrary to electroless nickel it does not tend to random plating. Also the electrolytes are free from halides and contain no other heavy metals such as lead or cadmium, besides nickel.

NIPHOS® 965 is chloride-free and pH-stable during operation. The phosphorus content of the coatings is 6 - 12 %. The hardness of the layers is 550 HV 0.05 as plated without heat treatment. NIPHOS® 965 coatings are applied prior to hard-gold plating (e.g. AURUNA® 8100) of contact surfaces.

Electrolyte characteristics

Electrolyte type


Metal content

100 (80 - 120) g/l Ni
30 (27 - 33) g/l P

pH value


Operating temperature

RT (20 - 45) °C

Current density range

0.5 - 5 A/dm²

Plating speed

2 μm/min bei 20 A/dm²

Anode material

Nickel (type S) or Pt-Ti, MMO (type PLATINODE® 177)

Coating characteristics



Alloy composition

88 - 94 wt.% Ni
6 - 12 wt.% P

Colour of deposit





550 - 600 HV


  • Savings on precious metals
  • For electrolytic deposition of nickel-phosphorus alloy layers
  • Content of phosphorus 6 - 12 %
  • Application as intermediate layer prior to hard-gold plating of contact surfaces
  • Used as a diffusion barrier between nickel and tin layers in reflow applications
  • Chloride-free
  • pH-stable
  • Application in reel-to-reel lines


  • Connectors
  • Smartcards
  • Leadframes

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Questions about the product?

Markus Legeler

+49 7171 607 204

For inquiries and additional information
please contact

Umicore AG & Co. KG
Rodenbacher Chaussee 4
63457 Hanau-Wolfgang

Tel.: +49 (6181) 59 6005
Fax: +49 (6181) 59 2970

The information and statements contained herein are provided free of charge. They are believed to be accurate at the time of publication, but Umicore makes no warranty with respect thereto, including but not limited to any results to be obtained or the infringement of any proprietary rights. Use or application of such information or statements is at the user´s sole discretion, without any liability on the part of Umicore. Nothing herein shall be construed as a license or recommendation for use, which infringes upon any proprietary rights. All sales are subject to Umicore´s General Conditions of Sale and Delivery.