Products > Test Equipment
Oscilloscope BNC mating cycle ratings ?
<< < (4/6) > >>
PixieDust:
Wow! I had no idea these things succumb to mating cycles. I thought you could plug you probes in as many times as you want!
S57UUU:
Probably you can. I'm an ee with 40 years practice, and newer saw a BNC fail (save mechanical abuse), neither at work nor at my home lab, where I went through a lot of ancient scopes, way past their warranty period.

Note than even when new,  BNCs are not considered stable phase connections - but they were never meant to be microwave connectors.

As someone already wrote, for low frequencies (<100MHz) and high impedance, you do not need microwave class connections.

Just treat them gently, and keep them clean, and don't count the connections.  :-)

Maybe in some high volume production line, where thy are connected 100 times per day, 250 days per year, they will eventually degrade (gold plating scratched off), so the manufacturer is just covering his back.

Marko Cebokli
vk6zgo:

--- Quote from: Bob Sava on April 24, 2018, 04:34:50 pm ---Only 500 mating cycles?  This makes me wonder if 3 year scope warranty covers BNC connectors.

--- End quote ---
Professional BNC connectors are more likely to have "mating cycles" in the 10s, or even 100s of thousands.

The cruddy little things shown in the links earlier may well have vanishingly small mating cycles.
jonpaul:

Check Amphenol BNC types and specs.
Since, 1960s as an EE, never had a BNC fail on scope or cable, except when mechanically abused, instrument drop, junk off ebay, etc.

But we use Tektronix, Yokogawa and Hameg scopes, no experience with recent crop of Chinese, nor the Picos.

J
BillyO:
The way BNC connectors are designed the contacts are aligned before they connect.  They should last a good long time.  My over 40 year old Tek 465 is still going strong and a 12 year old UNI-T has had no issues either despite having probes connected and disconnect nearly every day.
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod