Gold or silver-plated 3.5mm (1/8") stereo jacks?
Nov 19, 2004 at 2:31 PM Thread Starter Post #1 of 7

roadbuster

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Who makes these, who sells them, and how much is this going to cost me?

Silver-plating would be better as the resistance is lower and the durability will
be higher (harder than gold).

Options?
 
Nov 19, 2004 at 2:39 PM Post #2 of 7
Are you looking for panel mount, pcb mount or inline jacks?

I will presume panel mount. Nice 1/8" jacks are hard to come by. If this is for a Pimeta or PPA they will also need to be isolated. I have never seen silver jacks, probably due to corrosion issues.

These are the jacks I used in my Pimeta: Link.

The jack area is gold plated, but the terminals are not. It is the only gold plated jack I have seen. If you don't need something isolated some of the jacks tangent recommends in his Pimeta parts list are probably better. Not gold plated, but I don't think there is much of a selection.
 
Nov 19, 2004 at 2:56 PM Post #3 of 7
Quote:

Originally Posted by bg4533
Are you looking for panel mount, pcb mount or inline jacks?


Panel or PC mount. Anything but surface-mount, really.

Quote:

These are the jacks I used in my Pimeta: Link.

The jack area is gold plated, but the terminals are not. It is the only gold plated jack I have seen.


I was just looking at that jack. I didn't see anything which indicated that it
was gold-plated, though -- thanks for the info. I have a question, though:
the front of the jack looks like it has a hex nut on it. Does the jack have a
threaded bushing where I can use the hex nut to mount the jack to a panel
securely? I can't find that information on Mouser's website, and the
manufacturer's website is only a CAD drawing of the part.

Quote:

If you don't need something isolated some of the jacks tangent recommends in his Pimeta parts list are probably better. Not gold plated, but I don't think there is much of a selection.


By isolated, do you mean a jack where the case is electrically separated from
the terminals? It's ok if the ground terminal is attached to the casing.
 
Nov 19, 2004 at 4:46 PM Post #4 of 7
Quote:

By isolated, do you mean a jack where the case is electrically separated from the terminals?


Yes. It's important for the output jack in a PIMETA or PPA to be isolated when you're using a metal case, because otherwise input and output grounds are shorted together, which causes problems.
 
Nov 19, 2004 at 6:40 PM Post #5 of 7
Quote:

Originally Posted by roadbuster
Panel or PC mount. Anything but surface-mount, really.


I was just looking at that jack. I didn't see anything which indicated that it
was gold-plated, though -- thanks for the info. I have a question, though:
the front of the jack looks like it has a hex nut on it. Does the jack have a
threaded bushing where I can use the hex nut to mount the jack to a panel
securely? I can't find that information on Mouser's website, and the
manufacturer's website is only a CAD drawing of the part.


By isolated, do you mean a jack where the case is electrically separated from
the terminals? It's ok if the ground terminal is attached to the casing.



Below is a picture of my Pimeta with the jack I linked to earlier. The jack is threaded and has a plastic nut that screws onto the back of it.
front.jpg


What is this jack going to be used for?
 
Nov 20, 2004 at 5:06 AM Post #6 of 7
Quote:

Originally Posted by tangent
Yes. It's important for the output jack in a PIMETA or PPA to be isolated when you're using a metal case, because otherwise input and output grounds are shorted together, which causes problems.


oic.

Quote:

Originally Posted by bg4533
What is this jack going to be used for?


Supplying a differential clock signal to a prototype, digital, synchronous
circuit. I don't want to use screw terminals since plugs/jacks are a lot more
convenient. The t_rise and t_fall signals are slow enough (~10MHz) that the
additional parasitics from a mini RCA jack can be tolerated.

Thanks for including an image of your amplifier. Is the black material
surrounding the jack a plastic bushing, a plastic nut, or the threading on the
bushing?
 
Nov 20, 2004 at 5:21 AM Post #7 of 7
Quote:

Originally Posted by roadbuster
Thanks for including an image of your amplifier. Is the black material
surrounding the jack a plastic bushing, a plastic nut, or the threading on the
bushing?



The black material is plastic. The plastic you see is part of the one piece mold that makes up the outside of jack. On the other side of the amp is threaded.
 

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