[TowerTalk] N connector, Re: UHF (PL259) soldered center with braid

Zivney, Terry 00tlzivney at bsu.edu
Wed Jun 27 18:38:18 EDT 2018


Jim Lux said:

Actually not - the center conductor in an N is 0.120" - you might be thinking of the pointy locator pin in the middle (0.063"), but in a "properly mated" N connector, that's not carrying any power. 

In a BNC plug, the center pin is 0.053" in diameter (slightly smaller than the locator on an N) although i confess, having just looked through a variety of drawings on google (BNC dimension image), there is a HUGE variation. Just like in an N connector, you're counting on the mating surface at the shoulder of that pin to carry the RF current (and set the impedance) (typically 0.081 to 0.087") and that's about 70% of the size of the N connector's center pin

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So, if the connection on the N is just the flat donut contact, that is even less surface area than the BNC pin! So, e N have a lower power rating than the BNC?  

Terry N4TZ


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