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A High Temperature Electrical Contact Finish for Automotive Applications
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Abstract
Temperatures exceeding 125°C can degrade many common types of electroplated finishes used in the electronic connector industry, including hard gold. Diffusion, oxidation and porosity can cause increases in contact resistance leading to subsequent component failure. An electroplated finish for use in high reliability electronic connectors has been developed which can withstand 200°C for more than 2000 hours with no measurable changes in contact resistance.
Contact resistance data is presented for several common precious metal finishes, including two palladium-based finishes, shown to be extremely stable at 200°C for at least 2000 hours. The contact resistance was measured at dry circuit conditions according to ASTM B667-92, Standard Practice for Construction and Use of a Probe for Measuring Electrical Contact Resistance, at 0.25, 0.50, 0.75 and 1.00 N (25, 50, 75 and 100 grams) loads.
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Citation
Kudrak, E., Abys, J., and Chinchankar, V., "A High Temperature Electrical Contact Finish for Automotive Applications," SAE Technical Paper 960396, 1996, https://doi.org/10.4271/960396.Also In
References
- Antler, M. “Gold Plated Contacts: Effect of Heating on Reliability” Plating 57 615 618 AESF Orlando FL 1970
- Antler, M. Drozdowicz, M. H. “Gold-Plated Contacts: The Relationship Between Porosity and Contact Resistance on Elevated Temperature Aging” Plating 63 9 19 21 AESF Orlando, FL 1976
- Horibe, K. Hirano, T. “Contact Resistance of Gold and Palladium-Nickel Contact After Heat Treatment” Proceedings of the 78th AESF Annual Technical Conference Toronto, Canada 1991
- Mayer, L. J. Metal Finishing 88 8 53 56 1990
- Kudrak, E. J. et al Proc. of 77th AESF Annual Technical Conference July 1990 Boston, MA
- Straschil, H. K. et al Proc. of 77th AESF Annual Technical Conference July 1990 Boston, MA.
- Kadija, I. et al Proc. of 77th AESF Annual Technical Conference July 1990 Boston, MA
- Duva, R. Plating and Surface Finishing 77 2 42 43 1990
- Stevenson, J. Mayer L. IICIT Annual Symposium 1989 Philadelphia, PA
- Abys, J.A. et al Connectors '89 March 1989 Coventry, England
- Antler, M. Platinum Metal Review 31 1 13 19 1987
- Fairweather, W.A. Trans. Institute of Metal Finishing 64 3 1986
- Graham, A. Updegraff S. “Properties of Palladium-Nickel Alloys and Pure Palladium for Connector Applications” NEPCON 1984 Anaheim, CA
- Abys, J.A. AES Symposium on Economic Use of and Substitution for Precious Metals in the Electronics Industry 1982 Danvers, MA
- Brockman, I.H. et al Proc. Holm Conference 1988 73 83
- Grossman, H. et al Proc. Holm Conference 1984 551 560
- Ruhlicke, D. et al Proc. Holm Conference 1984 83 88
- Updegraff, S.W. Proc. ICEC 1986 399 403
- Graham, A.H. Proc. Holm Conference 1984 61 67
- Russ, G.J. IEEE Transactions on Components, Hybrids and Manufacturing Technology 6 4 Dec. 1983 389 395
- Abys, J.A. et al Metal Finishing 43 52 July 1991
- Abys, J. A. et al U.S. Patent 5,360,991A
- Antler, M. “Gold Plated Contacts: Effect of Heating on Reliability” Plating 57 615 618 AESF Orlando FL 1970
- Antler, M. “Gold Plated Contacts: Effect of Heating on Reliability” Plating 57 615 618 AESF Orlando FL 1970
- Munier, G. B. Plating 56 1151 1969
- Okinaka, Y. et al “Polymer Inclusions in Cobalt-Hardened Electroplated Gold” J. Electrochem. Soc. 1745 1750 Nov. 1978
- PallaTech and AuRoTech electroplating chemistries AT&T Nassau Metals Staten Island, NY