Browse Prior Art Database

CONNECTOR HAVING TWO DISSIMILAR METALS IN CONTACT REGION

IP.com Disclosure Number: IPCOM000026329D
Original Publication Date: 1991-Apr-30
Included in the Prior Art Database: 2004-Apr-05
Document File: 3 page(s) / 110K

Publishing Venue

Xerox Disclosure Journal

Abstract

Female terminal connectors, suitable for receiving a pin having a square or rectangular cross-section are generally provided with tin or gold contacts. Depending upon the specific application. tin or gold contacts are selected for reasons of cost and durability. Generally, the tin contacts are less expensive, while the gold contacts provide a more durable contact surface. Furthermore, the connectors are intended for use with mating pieces having a similar contact metal. For example, a female terminal with gold contacts is intended to be mated with a male pin having a gold plated outer surface. The use of similar metals is required to reduce the potential for galvanic corrosion of the contact region.

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XEROX DISCLOSURE JOURNAL

CONNECTOR HAVING TWO Proposed Classification DISSIMILAR METALS IN CONTACT
REGION
Int. C1. HOlr 4/18 William G. Gerken
Timothy M. Minerd

U.S. C1.439/867

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XEROX DISCLOSURE JOURNAL - Vol. 16, No. 2 MarcldApril1991 151

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RECEPTACLE HAVING TWO METALS IN CONTACT REGIONS(Cont'd)

Female terminal connectors, suitable for receiving a pin having a square or rectangular cross-section are generally provided with tin or gold contacts. Depending upon the specific application. tin or gold contacts are selected for reasons of cost and durability. Generally, the tin contacts are less expensive, while the gold contacts provide a more durable contact surface. Furthermore, the connectors are intended for use with mating pieces having a similar contact metal. For example, a female terminal with gold contacts is intended to be mated with a male pin having a gold plated outer surface. The use of similar metals is required to reduce the potential for galvanic corrosion of the contact region.

Today, in many connectors, the female socket is selectively plated with a narrow band of gold in the contact region to provide a contact surface, while minimizing the cost of gold plating. Generally, the use of the selective plating techniques results in an increase in cost of approximately five percent over the non-plated connector cost. Accordingly, it is proposed that a female connector having both gold and tin contacts be produced, so as to eliminate the need for two connectors having similar mechanical characteristics but with dissimilar contact regions....