[SI-LIST] : End launch SMA connectors

Jay Diepenbrock (jaydiep@us.ibm.com)
Thu, 5 Mar 1998 17:49:41 -0500

John Lipsius wrote:

>>sorry to bug you, but...
Don't apologize, that's why we listen here!

>>is the "end launch" connector simply a surface mount SMA conn?
Yes. They look a little funny, but the ones I have in mind mount sideways on
the board, such that the signal continues out the end of the cable, rather than
making a ninety degree turn when entering the board. A tab is soldered to the
pad on the card, with no via required. As pointed out by another si-lister,
there is still some capacitance in the body of the connector itself, but at
least you save the via capacitance.

>>(I need to adopt this perhaps, too. Ie: putting an SMA conn on the pcb >>for
measuring any resonances at 625MHz and harmonics with a Network >>Analyzer.)

Jay Diepenbrock

Advisory Engineer
Interconnect Technology & Qualification
IBM Global Procurement, B8UA/061, RTP, NC
Phone: 919-543-8804 Fax: 919-543-3642
Email: jaydiep@us.ibm.com