Large capacitance varicaps, where are thee?

Correction on that:

ON issued a massive product discontinuance notice (PD16800) which included Sony parts SVC233, SVC383 and SVC389 on 17 Jan of this year.

This was due to the catastrophic flooding in Thailand at that time.

US contact for existing inventory inquiries is listed as

Mark Gabrielle (email is snipped-for-privacy@onsemi.com)

RL

I doubt flooding is the real reason. There just is no market of sufficient size for these anymore.

They shut down the manufacturing facility.

"SANYO Semiconductor Thailand Co., Ltd. (SSTH)"

PD16800 covered over 200 discrete and integrated line items, half of which had no recommended substitute, regardless of supplier ( other sources' replacement products listed in this PD included Sanken, Toshiba, NXP, Rohm, STMicro, Renesas, IR, Fairchild, MPS, Maxim and ASAHIKASEI ).

The question is - Is there enough market to reopen or transfer the product from the Sanyo subsidiary to an ON/Sanyo subsidiary. Supposedly, they can get this info from inventory enquiries.....

RL

Quite obviously they weren't worth the effort to restart the lines, there or elsewhere.

It won't be obvious until regular distributors actually stop listing the parts, but it makes use of them an unlikely choice for new product development.

RL

Huh? You wait until the distys run out before you stop designing with obsolete parts? As soon as there is a whiff that a part is going down, I'm outta here. We have one now that the supplier decided to get out of the market until we told them why we picked their part. They decided to stay in the market but there is a 75% chance that we'll dump them anyway. Just can't take those chances.

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doesn't parts(that are actually used) on the way out tend to have some exponential price increase?

Does tend to make sure that the ones who really need them get them, not some one who just picked it because it was the first they found

-Lasse

After the production halts, sure. Those who didn't prepare pay the scalpers. Unless you're so small that you buy only off the Internet from DigiKey, and such, you do get discontinuance notices. Sometimes they fall through the cracks (no system is perfect) but there are warnings.

Doesn't anyone look at the NOT FOR USE IN NEW DESIGNS warnings?

Doesn't anyone require multiple sourcing any more?

My boms tend to require THREE inependently sourced parts, as purchasing options. I relax at home, though, by building stuff from unobtanium.

RL

No warning on this one, just the PD.

RL

Good grief, how many parts *have* multiple sources. Many companies are sourcing from multiple locations and even pay TSMC, for example, as a hot standby. That doesn't stop them from discontinuing a part.

You must do *really* boring s*it.

Things like uPs, FPGAs, ADCs, equalizers, PHYs, high-end analog chips, DDSs, fast opamps, switching regulators, all sorts of high-end stuff is sole-source.

And you must spend a lot of time waitng for somebody else to do it for you.

RL

...but occasionally not irreplaceable. If you don't even consider it, you'll never know. If you do, it may be (it used to be....) worth the effort.

How many posts does S.E.D. get, with just this issue?

If the 'end' is high, then so should be the engineering standards. That's what you get paid for.

RL

You've obviously been bored to the point of being brain dead.

...switching power supplies, most linear power supplies, audio amplifiers, and just about everything else I've used in the past few years outside of resistors and capacitors.

The software is worth more than the hardware. It's not worth the effort anymore.

No one said you were alone doing boring s*it.

Red herring.