[Elecraft] SO-239 Connector Selection
Ok figured I'd ask here and see if someone had some input on the differences here. Hopefully someone has done more design with these than I... My application is that I'm looking for connectors to install on some high end home made band-pass filters. 83-1R; http://www.mouser.com/ProductDetail/Amphenol-RF/83-1R-SO-239/?qs=sGAEpiMZZMtqi3rrGzC6kucWGwVoNS6TyriIimuNw9A%3d 83-1R-RFX: http://www.mouser.com/ProductDetail/Amphenol-RF/83-1R-RFX/?qs=sGAEpiMZZMtqi3rrGzC6kqBNVAfbUIcAaUNmqqZ3zpA%3d 83-798: http://www.mouser.com/ProductDetail/Amphenol-RF/83-798/?qs=sGAEpiMZZMtqi3rrGzC6kptFUq3vT%252bWoMcHyGEmWyaU%3d The 83-1R is a number I've seen a lot in usage and its the connector I'm leaning toward. It is also the cheapest of the 3. I know they are all going to be good connectors but is there any benefit to going with the other two versions? I believe that the RFX version is a commercial version of the same thing (at only 20 cents more) but I don't know what the difference is. Finally the 83-798 claims to be an SO-239A connector... I tried doing a search for SO-239 vs SO-239A and in a quick gander didn't turn up much... Any input would be appreciated. Thanks ~Brett (N7MG) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SO-239 Connector Selection
The 83-798A has a Teflon insulator - this is what makes it different. They're all equivalent for low frequency, low power (200w) work which I presume your bandpass filters will be. High-End? What design? -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brett Howard Sent: Thursday, July 22, 2010 8:22 AM To: elecraft Subject: [Elecraft] SO-239 Connector Selection Ok figured I'd ask here and see if someone had some input on the differences here. Hopefully someone has done more design with these than I... My application is that I'm looking for connectors to install on some high end home made band-pass filters. 83-1R; http://www.mouser.com/ProductDetail/Amphenol-RF/83-1R-SO-239/?qs=sGAEpiMZZMt qi3rrGzC6kucWGwVoNS6TyriIimuNw9A%3d 83-1R-RFX: http://www.mouser.com/ProductDetail/Amphenol-RF/83-1R-RFX/?qs=sGAEpiMZZMtqi3 rrGzC6kqBNVAfbUIcAaUNmqqZ3zpA%3d 83-798: http://www.mouser.com/ProductDetail/Amphenol-RF/83-798/?qs=sGAEpiMZZMtqi3rrG zC6kptFUq3vT%252bWoMcHyGEmWyaU%3d The 83-1R is a number I've seen a lot in usage and its the connector I'm leaning toward. It is also the cheapest of the 3. I know they are all going to be good connectors but is there any benefit to going with the other two versions? I believe that the RFX version is a commercial version of the same thing (at only 20 cents more) but I don't know what the difference is. Finally the 83-798 claims to be an SO-239A connector... I tried doing a search for SO-239 vs SO-239A and in a quick gander didn't turn up much... Any input would be appreciated. Thanks ~Brett (N7MG) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SO-239 Connector Selection
Based on W3NQN's filters and rated for 200W. Makes sense on the teflon insulator... I assume that that only makes the difference when doing higher power? I do think that whenever I'm making an antenna that is to have a connector blow torch soldered to a copper pipe or something I'm going to buy one of those! Now I just wonder what the difference in the small price jump delta between RFX and non RFX is... ~Brett (N7MG) On Thu, Jul 22, 2010 at 6:34 AM, Bob Naumann w...@w5ov.com wrote: The 83-798A has a Teflon insulator - this is what makes it different. They're all equivalent for low frequency, low power (200w) work which I presume your bandpass filters will be. High-End? What design? -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brett Howard Sent: Thursday, July 22, 2010 8:22 AM To: elecraft Subject: [Elecraft] SO-239 Connector Selection Ok figured I'd ask here and see if someone had some input on the differences here. Hopefully someone has done more design with these than I... My application is that I'm looking for connectors to install on some high end home made band-pass filters. 83-1R; http://www.mouser.com/ProductDetail/Amphenol-RF/83-1R-SO-239/?qs=sGAEpiMZZMt qi3rrGzC6kucWGwVoNS6TyriIimuNw9A%3d 83-1R-RFX: http://www.mouser.com/ProductDetail/Amphenol-RF/83-1R-RFX/?qs=sGAEpiMZZMtqi3 rrGzC6kqBNVAfbUIcAaUNmqqZ3zpA%3d 83-798: http://www.mouser.com/ProductDetail/Amphenol-RF/83-798/?qs=sGAEpiMZZMtqi3rrG zC6kptFUq3vT%252bWoMcHyGEmWyaU%3d The 83-1R is a number I've seen a lot in usage and its the connector I'm leaning toward. It is also the cheapest of the 3. I know they are all going to be good connectors but is there any benefit to going with the other two versions? I believe that the RFX version is a commercial version of the same thing (at only 20 cents more) but I don't know what the difference is. Finally the 83-798 claims to be an SO-239A connector... I tried doing a search for SO-239 vs SO-239A and in a quick gander didn't turn up much... Any input would be appreciated. Thanks ~Brett (N7MG) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] SO-239 Connector Selection
Makes sense on the teflon insulator... I assume that that only makes the difference when doing higher power? It mostly makes a difference in soldering. The measured voltage breakdown of a standard Amphenol SO-239 is well over 5000 volts peak. The arc point is normally the air gap between the end of the female and the connector shell over the face of the dielectric, provided the pin soldering is smooth and without points or accidental closure of the air gap at the pin area with sloppy wiring or soldering. I normally high-pot my PL259 installations to 5000 volts or higher as a cable test to check for stray shield strands or other problems. SO-239's test just as high or higher, and all of my 1:1 baluns are tested that way before installation and they use UHF females. Other then the fact some plastics in cheap connectors heat a bit at extreme voltage and high frequency, I can't imagine any need for Teflon other than soldering or reduced carbon tracking from lightning or arcs. I mainly use Teflon because I torch solder SO239's and 259's on my homebrew hardline connectors, and it is better with lightning arcs or 1500 watts into open terminated cables when a switch is wrong. For your filter application, you could use anything. 73 Tom __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
