Hello All, I am working with a customer to determine the optimal finished hole diameter for press-fit connectors into a Gold finish PCB. The supplier's data sheet for the connector specifies .024"+/-.002" HASL plated holes. We have learned from experience that the connector insertion success rate is greatly improved when using a slightly larger hole on a gold finish PCB since it is less compliant with the connector pins than the soft HASL. So far, the supplier has not given a recommendation on a diameter for gold, so I am looking for other industry standards to validate our findings. Any ideas would be greatly appreciated. Thanks, Dave --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------