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January 2001

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Subject:
From:
"Ingemar Hernefjord (EMW)" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 19 Jan 2001 09:38:06 +0100
Content-Type:
text/plain
Parts/Attachments:
text/plain (173 lines)
Ken,
We use a Radiall right angle surface mount, standing on four short legs, standard type. We clean with Citriclean and DI, no problems. Recommend an electrical leakage test afterwards for ensuring you have those GOhms that should be between center pin and body. Epoxy is pushed inside at the con factory, after curing a small expansion metal cap is pressed into the opening for sealing the whole thing. Nothing you do yourself, think it's patented methods. Without this sealing you may get solder creeping up the legs and inside the con body, not healthy.
Good Luck
Ingemar


-----Original Message-----
From: Ken Patel [mailto:[log in to unmask]]
Sent: den 18 januari 2001 18:00
To: 'TechNet E-Mail Forum.'; 'Ingemar Hernefjord (EMW)'
Subject: RE: [TN] Can RF connectors be reflowed?


Ingemar,
Now, I have more info on the connector, it's a high frequency connector made
by Rosenberger in Germany and their part number is 32K243-40M D3. This one
is new part coming out of them and North American Sales do not have more
info on that.

Are you talking about hand soldering? or regular reflow soldering. So, the
parts you were using were coming with backfilled epoxy or something you used
to prevent from getting inside. Any problem going thru DI water wash?

re,
ken patel

-----Original Message-----
From: Ingemar Hernefjord (EMW)
[mailto:[log in to unmask]]
Sent: Thursday, January 18, 2001 12:03 AM
To: [log in to unmask]
Subject: Re: [TN] Can RF connectors be reflowed?


we have been soldering RFcons for years. Of course follow con maker's
instructions. Advice: see that no flux or solder creeps on inside. We had to
buy specials with backfilled epoxy that stopped inside disaster.
Ingemar

-----Original Message-----
From: Phil Crepeau [mailto:[log in to unmask]]
Sent: den 17 januari 2001 22:15
To: [log in to unmask]
Subject: Re: [TN] Can RF connectors be reflowed?


hi,

there are a multitude of rf connectors?  specifically, what type are you
talking about?

a common practice (for example with semi-rigid cable) is to cut the cable to
length, preheat the cable to expand and relieve the teflon dielectric, cut
off the teflon that extrudes from the shield, then solder the connector to
it.  i know you are talking about the connector, but the same prodedure
could work there.  we reflow solder sma connectors to backpanels without any
problems.

phil

-----Original Message-----
From: Ken Patel [mailto:[log in to unmask]]
Sent: Wednesday, January 17, 2001 12:43 PM
To: [log in to unmask]
Subject: Re: [TN] Can RF connectors be reflowed?
Importance: High


Guys,
How RF connectors are soldered to the boards? This one is with teflon bead
for sure.

re,
ken patel

-----Original Message-----
From: Terveen, James @ NARDAEAST
[mailto:[log in to unmask]]
Sent: Wednesday, January 17, 2001 12:31 PM
To: 'TechNet E-Mail Forum.'; 'Ken Patel'
Subject: RE: [TN] Can RF connectors be reflowed?


You may have a problem with the teflon bead in the connector,  grow as it
sees the heat during reflow and that may (no it probably will effect the
performance of the connector.

-----Original Message-----
From: Ken Patel [mailto:[log in to unmask]]
Sent: Wednesday, January 17, 2001 2:41 PM
To: [log in to unmask]
Subject: [TN] Can RF connectors be reflowed?
Importance: High


All,
I am throwing this as a general question.
Can RF connectors be reflowed? This one is high frequency. We do not have
data sheet and are made in Germany.

re,
ken patel

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