What is the mfr and pn? What's the environment: high particulate? cable flexing? air flow/no air flow? drastic temp swings? ______________________________ Reply Separator _________________________________ Subject: DES> Connector Reliability Author: [log in to unmask] at internet-mail Date: 4/29/96 12:37 PM We have a header in a prototype system with brass sprung contacts with gold plate over nickel, contacting pins which are also gold-plate over nickel. This connector carries 3A, and is showing a strong tendency to increase in contact resistance in field tests (up to 150 mOhm). Removing and refitting the connector takes the contact resistance back to "as new" (<40 m Ohm).. The connectors have been examined by a test lab and pronounced OK, with no contamination. No deposit or oxidation is visible on the surface. Has anyone seen similar failure mechanism? What's the physics? Terry Davey -------------------------------- [log in to unmask] ------