EEVblog Electronics Community Forum
Products => Test Equipment => Topic started by: Weston on October 20, 2021, 06:46:10 am
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I am helping out with a student power electronics lab and I have found that a large number of the current probes using the Agilent/Keysight AutoProbe 1 interface due not work due to damaged pins. I was hoping to replace the damaged pins and restore the probe functionality.
Has anyone ever identified the type of pogo pin that the Autprobe 1 interface uses and found a replacement? This is the interface used for most Agilent active probes: https://prc.keysight.com/Content/ProbeInterfaces.html
I searched for old forum posts and was surprised when I did not find any info on this. The pins are easily damaged, so it seems like it should be a pretty common problem.
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Those are most likely Keysight proprietary pins.
I would contact Keysight and ask, if these pins are available for sale.
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Did you check pogo pins?
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Shariar did a teardown of one of these probes. These were standard 100mil pogo pins.
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As a very late update, I have tracked down an exact replacement pogo pin and have confirmed it works!
https://www.mouser.com/ProductDetail/Smiths-Interconnect-IDI/S-2-J-4-G?qs=Uzd%2Fwh%252BZzhCupKIOd%2F7fvQ%3D%3D (https://www.mouser.com/ProductDetail/Smiths-Interconnect-IDI/S-2-J-4-G?qs=Uzd%2Fwh%252BZzhCupKIOd%2F7fvQ%3D%3D)
Also, if the pogo pin gets pushed in all the way it can be impossible to remove with pliers. I have discovered you can effectively bond a small wire (30AWG wire bond wire works best) to the tip of the pogo pin and pull it out by capacitively spot welding a wire to the tip with a ~60V lab power supply. If you take apart the probe connector you can remove the whole pogo pin assembly and make a connection to the back side with an alligator clip.
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Depending on how they get stuck, you might want to use shorter or longer pins, with higher or lower force. There are other manufacturers out there beside IDI - Mill-max, QM Tech, Ingun and few others.
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Nice to know, that you got it to work.