[SI-LIST] Re: What's difference between 3.5mm and SMA?
- From: "Fasig, Jonathan L." <fasig.jonathan@xxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Thu, 17 Apr 2003 07:52:56 -0500
Tom is correct in his statement that SMA's *should* mate non-destructively
with APC3.5mm connectors. However, that is sometimes not the case in
practice. The center pins in SMA connectors are typically stamped and
therefore have a wider dimensional tolerance compared the center pins and
sockets found in APC3.5mm connectors. If an out-of-spec SMA plug is mated
to an APC3.5mm receptacle then the APC3.5mm connector can be permanently
damaged. Anyone working with APC3.5mm and other precision RF connectors
might find value in reviewing Chapter 2 "Care and Handling of Precision
Connectors" in
http://cp.literature.agilent.com/litweb/pdf/54753-97015.pdf
Regards,
jf
-----Original Message-----
From: Tom Dagostino [mailto:tom@xxxxxxxxxxxxx]
Sent: Wednesday, April 16, 2003 8:24 PM
To: modaochun@xxxxxxxxxx; si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: What's difference between 3.5mm and SMA?
Moore Mo
SMA and 3.5 mm are dimensionally the same. The SMA uses Teflon dielectric
and the 3.5mm uses air. The threads on a 3.5mm are of a tighter tolerance
than a SMA. They should mate non-destructively.
Tom Dagostino
Teraspeed Consulting Group LLC Teraspeed Consulting Group LLC
2926 SE Yamhill St. Device Modeling Division
Portland, OR 97214 13610 SW Harness Lane
Beaverton, OR 97008
http://www.teraspeed.com 503-430-1065
tom@xxxxxxxxxxxxx
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]On
Behalf Of Moore Mo (Mo Daochun)
Sent: Wednesday, April 16, 2003 5:44 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] What's difference between 3.5mm and SMA?
Hi All:
We often meet some RF and microwave connector of 3.5mm, and some of SMA,
what 's difference between them?
Best Regards
Moore Mo (Modaochun)
Huawei Technologies Co.,Ltd.
Tel: 86 755 26540544/26540065/6540808
Fax: 86 755 26540568
Email:modaochun@xxxxxxxxxx
website: http: // www.huawei.com
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