NJM4558D opamps will be discontinued...

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laurie
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NJM4558D opamps will be discontinued...

Post by laurie » Thu Sep 11, 2025 10:05 pm

https://www.mouser.com/PCN/Nisshinbo_Mi ... 5_0081.pdf

This means that no new designs using our favorite NJM4558D opamps in a couple of years.

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Re: NJM4558D opamps will be discontinued...

Post by Pepe » Fri Sep 12, 2025 6:09 am

WHAT?! :shock:

Well, these are on the market for around 50 years, so that was a very long life-span. But still ...
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fuzzbuzzfuzz
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Re: NJM4558D opamps will be discontinued...

Post by fuzzbuzzfuzz » Fri Oct 03, 2025 6:56 am

laurie wrote:
Thu Sep 11, 2025 10:05 pm
https://www.mouser.com/PCN/Nisshinbo_Mi ... 5_0081.pdf

This means that no new designs using our favorite NJM4558D opamps in a couple of years.
Interesting. I wonder how the “M” and “C” variants they will continue to manufacture sound?

Side note: I see already a hierarchy appearing in used sales of TS and SD-1s based on the specific 4558 chip installed with the more sought after chip variant commanding the higher price (presumably related to age dating the pedal AND sound).

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laurie
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Re: NJM4558D opamps will be discontinued...

Post by laurie » Sun Oct 05, 2025 7:12 pm

I just grabbed 250 of them, just in case they are in short supply in the future.

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Re: NJM4558D opamps will be discontinued...

Post by fuzzbuzzfuzz » Tue Oct 07, 2025 2:53 am

laurie wrote:
Sun Oct 05, 2025 7:12 pm
I just grabbed 250 of them, just in case they are in short supply in the future.
How did you purchase those Laurie?

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laurie
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Re: NJM4558D opamps will be discontinued...

Post by laurie » Tue Oct 07, 2025 8:19 am

fuzzbuzzfuzz wrote:
Tue Oct 07, 2025 2:53 am
laurie wrote:
Sun Oct 05, 2025 7:12 pm
I just grabbed 250 of them, just in case they are in short supply in the future.
How did you purchase those Laurie?
I used my account at mouser.ca

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