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Author Topic: CTIA/AHJ 3.5mm plugs  (Read 751 times)

Andrew Broughton

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CTIA/AHJ 3.5mm plugs
« on: October 21, 2019, 02:34:58 pm »

Anyone know a place that sells these? Looking for some quality ones with metal shells.
Most that I have found online have ground connected to shield. Iím looking for ones following the CTIA/AHJ standard with ground (and case) connected to R2.
« Last Edit: October 21, 2019, 03:09:35 pm by Andrew Broughton »
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Andrew Broughton

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Re: CTIA/AHJ 3.5mm plugs
« Reply #1 on: October 21, 2019, 02:36:51 pm »

Neutrik doesnít seem to have one and I didnít see a SC one either.
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Dave Garoutte

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Re: CTIA/AHJ 3.5mm plugs
« Reply #2 on: October 21, 2019, 03:41:33 pm »

Have you looked at Mouser?  They seem to have everything in the world. ::)
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Andrew Broughton

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Re: CTIA/AHJ 3.5mm plugs
« Reply #3 on: October 21, 2019, 04:34:59 pm »

Have you looked at Mouser?  They seem to have everything in the world. ::)
Yeah, theirs have the same issue that the other "common" ones have, not built for CTIA/AHJ wiring.

I'm not even sure if such a beast exists...
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Tim McCulloch

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Re: CTIA/AHJ 3.5mm plugs
« Reply #4 on: October 21, 2019, 07:45:43 pm »

CTIA = Canadian Tourists In Amsterdam?
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Andrew Broughton

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Pete Erskine

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Re: CTIA/AHJ 3.5mm plugs
« Reply #6 on: October 21, 2019, 09:49:22 pm »

Anyone know a place that sells these? Looking for some quality ones with metal shells.
Most that I have found online have ground connected to shield. Iím looking for ones following the CTIA/AHJ standard with ground (and case) connected to R2.


https://www.aliexpress.com/item/32843629979.html?aff_platform=dynamic-window&cpt=1571708581282&sk=AMnm2vF&aff_trace_key=c1b57924d0ae43a6a7e21c69b6501651-1571708581282-07150-AMnm2vF&terminal_id=e9b17d8775c3423999742cf0b0babd42
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Pete Erskine
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Andrew Broughton

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Re: CTIA/AHJ 3.5mm plugs
« Reply #7 on: October 21, 2019, 09:55:17 pm »

Hey Pete;

Have you gotten one of these, and can confirm the shell is connected to R2, not sleeve?

So far, I've never seen one that was built "as I feel it should be".
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-Andy

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Pete Erskine

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Re: CTIA/AHJ 3.5mm plugs
« Reply #8 on: October 22, 2019, 02:23:44 pm »

Hey Pete;

Have you gotten one of these, and can confirm the shell is connected to R2, not sleeve?

So far, I've never seen one that was built "as I feel it should be".

I Have no idea but picture seems to have shell connected to top ckt

What you want is second line of second pix, I assume
« Last Edit: October 22, 2019, 02:26:59 pm by Pete Erskine »
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Andrew Broughton

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Re: CTIA/AHJ 3.5mm plugs
« Reply #9 on: October 22, 2019, 06:46:17 pm »

The conductors are named, from Tip to Shell:
Tip
Ring 1
Ring 2
Sleeve

Sleeve on any normal connection is ground, attached to the shell. The CTIA/AHJ standard, used on all Apple Products and all modern notebooks has the Sleeve connected to Mic+. Ring 2 (R2) is connected to ground. A metal shell on any 3.5mm TRRS connectors I've seen would then also connect to the Mic+. Likely causing a hum when you grip the connector, and certainly not offering any shielding.
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-Andy

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ProSoundWeb Community

Re: CTIA/AHJ 3.5mm plugs
¬ę Reply #9 on: October 22, 2019, 06:46:17 pm ¬Ľ


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