Is there any real difference between these two N-BNC adaptors?  - Page 1
Forum section: electronics / projects

author: 8086
author_rank: Super Contributor
timestamp: September 07, 2016, 01:47:23 pm
content: Aside from the obvious £75 difference, of course...Does anyone see any reason to buy the more expensive one? they seem to be almost identical. Being the cheapskate I am, I would rather get one for £12 than £86!http://uk.farnell.com/tektronix/103-0045-00/adaptor-mdo-mso-dpo-series-oscilloscope/dp/2400628?MER=bn_para_1TP_Echo_1http://uk.farnell.com/amphenol-rf/31-216/adaptor-bnc-jack-n-plug/dp/2396223

author: Dave
author_rank: Super Contributor
timestamp: September 07, 2016, 02:41:40 pm
content: Both Tek and Amphenol are very reputable manufacturers and you can be pretty sure that they both meet the strict tolerances of the N connector standard. It would be very likely that Amphenol is the OEM for Tektronix, because I doubt that Tek manufacture their own connectors. I'd go with the cheaper one.

author: tggzzz
author_rank: Super Contributor
timestamp: September 07, 2016, 03:47:00 pm
content: Ask the question on the RF forum and you may get a different answer. Doubly so on the Metrology forum, since metrologists are veryverycareful and picky about their connectors.Whether that is relevant to you and your application, or to the equipment you will be attaching it to, I have no idea - since you haven't defined either.

author: AF6LJ
author_rank: Unknown
timestamp: September 07, 2016, 03:53:41 pm
content: It wouldn't surprise me if the Tek one was made by Amphenol.

author: Mechatrommer
author_rank: Super Contributor
timestamp: September 07, 2016, 05:28:21 pm
content: Quote from: AF6LJ on September 07, 2016, 03:53:41 pmno need surprise. zoom the tek picture, it has amphenol name on it, and probably same model UG-20xxx something... $75 you pay is because you can brag you have a tektronix name and approved connector. weight difference is only 0.3 gram. thats worth only $14 difference if its gold, but its not.

author: JPortici
author_rank: Super Contributor
timestamp: September 07, 2016, 06:00:08 pm
content: So.. yes there is difference. The first one has 0.3 gram of Tek Mojo in it

author: rastro
author_rank: Frequent Contributor
timestamp: September 07, 2016, 08:21:02 pm
content: If I recall correctly N-type connectors are originally rated for 11GHz and later N-Type (precision) are rated for 18GHz. So there is some difference in the design but they should be interchangeable. I believe the N (precision) male has a solid sleeve around the center pin as opposed to (4 to 6) slits in the lower sleeve of the lower N grade. Both items look like a standard N-type connector from what I see.However since BNC typically is not expected to carry over 3GHz - it's the weak link of the adapter. So it would not make sense to worry about an N precision performance.As someone already indicated they are both quality suppliers so you are probably OK with the less expensive.-rastro

author: 8086
author_rank: Super Contributor
timestamp: September 07, 2016, 10:49:08 pm
content: Thanks, I went for the cheaper one. Got a RSA306B spectrum analyser and it apparently doesn't come with the adaptor/antenna like the RSA306 did. So it only needs to work up to 6.2GHz.