Horrible lead times on some MOSFETs

Sep 28, 2021 Last reply: 4 years ago 42 Replies

Ouch:



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A lot of the inexpensive low Vgs high-voltage MOSFETs are like that, even singles :(


just collateral damage for taking out Trump

Why do you post on an electronics group ?

Because I am a practicing EE.

Welcome to the new normal. I was yanked out of retirement a couple of weeks ago by clients who suddenly could no longer buy this, that and the other part. Still working on one case.

My assumption is that this will continue for another 2-3 years and never quite settle back to the "good old days". Then again, it's often the same with lawn mower parts, toilet paper, ...

The pattern is

Shortage, real or not.

Panic.

Multiple over-buying.

Ramp up production.

Glut. Garages full of toilet paper.

The semi industry does this pattern now and then.

That and the fear of Bidenflation. Next year the same chip could cost

20% more.

I know a guy who has four (!) bulk packages in his walk-in closet.

This time it's more serious. There are parts my clients need that have the next scheduled delivery in December 2022. And even then there is a substantial risk that they'd get blown out of the water a month before via an "Oh, so sorry" email. Which just happened to one of my clients so I might get to do a redesign of a perfectly fine circuit.

I only have 200 ATTiny84s in a box under my bed

Well, it's good to exercise more than your legs. ;)

Cheers

Phil Hobbs

Yes, but the plan was to invest my brain exercises in my newly rekindled hobby of ham radio. So many ideas, so much stuff to build, but not much time (yet).

Bitrex: If you keep those 200 ATTiny you might be able sell them for an ounce of gold in three years :-)

Today's crisis: LM337 in dpak.

500 should be showing up any second now, have someone watch the site round the clock:
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Thanks, but that's a D2PAK.

We might have to try to hack it in, but it looks too big. Maybe a SOT-223 would work. I think we can get them.

  • Very useful in feeding that fire burning the garage...

Maybe build the world's smallest HF transceiver. Under a square inch maybe.

That's already done.

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I've seen one in SMT and with just wires coming off the board. It was the size of a (small) postage stamp.

Chip 1 Exchange supposedly has 1787 of the LM337KVURG3 in stock but it's RFQ.

Darn. Maybe moonbounce next?

Bonnie already got a quote from them. $10.13 ea for 400 pieces.

We already did that almost half a century ago. That was never my thing though. I am an HF guy and nowadays mostly CW (morse code).

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Now, Mars bounce, that would be ... but we'd first have to re-start the Rancho Seco nuclear plant and then hold a major fund drive for the expected electricity bills.

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