Re: gEDA-user: OT: High Temperature Connector
On Sat, Feb 12, 2011 at 7:00 PM, John Griessen wrote: > > PS the Zierick IDC connectors are all copper, and reflowable, so they can > do 150 deg C > forever. Copper doesn't have any annealing properties that change any lower > than > 400 deg F I am sure. Tin is also good at 400 deg F. That's 204 deg C... I don't expect the Zierick's to be a problem. I would like them to have a published spec that states this in case I need it for UL. I may have just missed it on the site. (* jcl *) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: OT: High Temperature Connector
On 02/12/2011 06:00 PM, John Griessen wrote: You know what a "low profile" spade connector would look like? It would be a flat bar of copper, plated with tin, and with a dogleg bend in it -- very machine placeable...at just the right spot near the edge of a board. You could also make a milled notch at the board edge where it goes to make it even more "finger assembly friendly". I just thought again, and why put a bend in it? Just chop off pieces of flat copper wire like is used in track light channels and motor and transformer windings and use mini spade terminals and very ordinary crimpers to put them on wire. Most contract manufacturers would already have a wire end stripper and a wire end crimper for such old fashioned parts. The novel idea is to put the "spade", (1.2 cm clipped from a roll of wire), at a notch in the edge of the board to protect it from bending/shorting. A rectangular hole milled in the board away from the edge would work too. If this happen to really be novel, I now license it to all of you as TAPR.org lic. open hardware. The mini spade wire terminal half is old old expired patent public domain now. John Griessen -- Ecosensory Austin TX ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: OT: High Temperature Connector
On 02/12/2011 03:57 PM, John Luciani wrote: The vertical tabs are too tall. Not sure about machine placeable R/A SMD tabs. You know what a "low profile" spade connector would look like? It would be a flat bar of copper, plated with tin, and with a dogleg bend in it -- very machine placeable...at just the right spot near the edge of a board. You could also make a milled notch at the board edge where it goes to make it even more "finger assembly friendly". If it doesn't exist as a standard product and you like the idea, I know where to ask to get it prototyped in days and samples in a week. It would be pure "finger assembly"! John PS the Zierick IDC connectors are all copper, and reflowable, so they can do 150 deg C forever. Copper doesn't have any annealing properties that change any lower than 400 deg F I am sure. Tin is also good at 400 deg F. That's 204 deg C... ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: OT: High Temperature Connector
On Sat, Feb 12, 2011 at 4:26 PM, Steven Michalske wrote: > Or 1/4 inch quick disconnects. > What about just soldering the wires? This is for volume production of MCPCB. Connectors are preferred. Are 1/4 inch quick disconnects the same as faston tabs? The vertical tabs are too tall. Not sure about machine placeable R/A SMD tabs. (* jcl *) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: OT: High Temperature Connector
Or 1/4 inch quick disconnects. On Feb 12, 2011, at 12:52 PM, John Luciani wrote: > Thanks to everyone for the suggestions. > > The Phoenix style are a bit too tall. > The Omnetics are too expensive but the Omnetics site did mention the materials > that the 125degC and 200degC rated were made of so I was able to find parts > at Tyco and Molex with the high temp materials. > > I had originally specified the Zierick 1245 IDC. Mfg is requesting a tool-less > option at final assembly so we started to look at different options. > The majority > of the low cost connectors have 85degC or 105degC operating ratings. > > The AVX looks similar to the Zierick (as far as function and installation). > The Zierick is probably less expensive. I will search the AVX site for > other options. > > I did not see operating temperature ranges for the Zierick so I have a call > into the Zierick salesman. > > Thanks again for the suggestions. > > (* jcl *) > > > ___ > geda-user mailing list > geda-user@moria.seul.org > http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: OT: High Temperature Connector
What about just soldering the wires? On Feb 12, 2011, at 12:52 PM, John Luciani wrote: > Thanks to everyone for the suggestions. > > The Phoenix style are a bit too tall. > The Omnetics are too expensive but the Omnetics site did mention the materials > that the 125degC and 200degC rated were made of so I was able to find parts > at Tyco and Molex with the high temp materials. > > I had originally specified the Zierick 1245 IDC. Mfg is requesting a tool-less > option at final assembly so we started to look at different options. > The majority > of the low cost connectors have 85degC or 105degC operating ratings. > > The AVX looks similar to the Zierick (as far as function and installation). > The Zierick is probably less expensive. I will search the AVX site for > other options. > > I did not see operating temperature ranges for the Zierick so I have a call > into the Zierick salesman. > > Thanks again for the suggestions. > > (* jcl *) > > > ___ > geda-user mailing list > geda-user@moria.seul.org > http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: OT: High Temperature Connector
Thanks to everyone for the suggestions. The Phoenix style are a bit too tall. The Omnetics are too expensive but the Omnetics site did mention the materials that the 125degC and 200degC rated were made of so I was able to find parts at Tyco and Molex with the high temp materials. I had originally specified the Zierick 1245 IDC. Mfg is requesting a tool-less option at final assembly so we started to look at different options. The majority of the low cost connectors have 85degC or 105degC operating ratings. The AVX looks similar to the Zierick (as far as function and installation). The Zierick is probably less expensive. I will search the AVX site for other options. I did not see operating temperature ranges for the Zierick so I have a call into the Zierick salesman. Thanks again for the suggestions. (* jcl *) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: OT: High Temperature Connector
On 02/12/2011 12:57 PM, John Griessen wrote: Seems really hard to find 1.25A rated and small wire to board...for your 4 wire version... John Oh, you wanted 2.5A per wire minimum...even harder to find...but my mind finally kicked in gear search engine-wise: http://www.avx.com/docs/Catalogs/9176.pdf For LED lamp wiring systems! and zierick makes a pick and place non-insulated connector that could be good: http://www.zierick.com/pages/sm_wireconn.php The IDC one needs no tooling for low volumes... The piercing one could be crimped with a low tolerace pliers modification... John Griessen -- Ecosensory Austin TX ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: OT: High Temperature Connector
On 02/11/2011 08:30 PM, John Luciani wrote: Being able to remove the wires would be nice but is not a requirement. We have been able to find 105degC rated connectors but nothing higher yet. Rig up a discharge spot welder and weld your wires to pads with enough area to take the welding heat and the welding area zone? Such a welder uses two heavy copper welding tips so the wire does not need to conduct the welding current, and the weld pulse stays fast. I If you're thinking of kit products, I'd search for surface mount wire connectors -- I seem to remember seeing something like that and can't recall it yet... Found molex panelmate connectors have 1.25mm pitch, reflowable, 1A per 28Ga conductor. Requires expensive crimp tool: Molex Manufacturers Part No. 63811-7900 Seems really hard to find 1.25A rated and small wire to board...for your 4 wire version... John -- Ecosensory Austin TX ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: OT: High Temperature Connector
John Luciani: > I am looking for a low profile wire to board connector - either two > contacts 5A per contact or four > contacts 2.5A per contact. I need a temperature rating of at least > 110degC (preferable >120degC). UL recognized is required. http://www.camdenelec.com/pdf/CTB92HECTB92VESCTB92VERp38.pdf says 110°C. Regards, /Karl Hammar --- Aspö Data Lilla Aspö 148 S-742 94 Östhammar Sweden +46 173 140 57 ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: OT: High Temperature Connector
John Luciani wrote: I am looking for a low profile wire to board connector - either two contacts 5A per contact or four contacts 2.5A per contact. I need a temperature rating of at least 110degC (preferable 120degC). UL recognized is required. Being able to remove the wires would be nice but is not a requirement. We have been able to find 105degC rated connectors but nothing higher yet. Take a look at omnetics connectors. Where I work, we routinely run them at 175C or more. They are expensive though. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: OT: High Temperature Connector
Might look into Phoenix contact and their reflow capable parts. On Feb 11, 2011, at 6:30 PM, John Luciani wrote: > I am looking for a low profile wire to board connector - either two > contacts 5A per contact or four > contacts 2.5A per contact. I need a temperature rating of at least > 110degC (preferable >> 120degC). UL recognized is required. > > Being able to remove the wires would be nice but is not a requirement. We have > been able to find 105degC rated connectors but nothing higher yet. > > Thanks. > > (* jcl *) > > > ___ > geda-user mailing list > geda-user@moria.seul.org > http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: OT: High Temperature Connector
I am looking for a low profile wire to board connector - either two contacts 5A per contact or four contacts 2.5A per contact. I need a temperature rating of at least 110degC (preferable >120degC). UL recognized is required. Being able to remove the wires would be nice but is not a requirement. We have been able to find 105degC rated connectors but nothing higher yet. Thanks. (* jcl *) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
