Author Topic: What is your longest lead-time wait?  (Read 2271 times)

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Offline olkipukki

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What is your longest lead-time wait?
« on: April 28, 2018, 11:41:47 pm »
Recently a new placed order and lead-time 21 weeks to wait :popcorn:
Well, this is my record. Hope that they can delivery early since a chip is appeared in other suppliers... we will see.


What about you?
 

Offline HHaase

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Re: What is your longest lead-time wait?
« Reply #1 on: April 29, 2018, 08:52:51 am »
I've seen 52 weeks recently.  Supposedly some parts from Micron are currently listed as even longer.
 

Offline jmelson

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Re: What is your longest lead-time wait?
« Reply #2 on: April 29, 2018, 12:52:58 pm »
Over a decade ago, I had a Burr-Brown part that I'd used for some time, but there was no stock.  The distributor showed a 2.5 YEAR lead time, but they could tell me the exact day the part would be manufactured.  I got frantic, and found that TI made an equivalent part for 1/4th the cost, and reviewing the datasheet, it sure seemed compatible.  I wasn't totally convinced until I actually put them in the circuit, and it worked fine.

Jon
 

Online JPortici

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Re: What is your longest lead-time wait?
« Reply #3 on: April 29, 2018, 10:43:40 pm »
100nf capacitors are around 40 weeks
our assemblers keep asking to plan orders ahead for one to two years
 

Offline ar__systems

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Re: What is your longest lead-time wait?
« Reply #4 on: April 30, 2018, 03:00:04 am »
100nf capacitors are around 40 weeks
our assemblers keep asking to plan orders ahead for one to two years
LOL did you specifically search for the 100nf with the longest possible lead time? It is the most common cap after all...
 

Offline mairo

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Re: What is your longest lead-time wait?
« Reply #5 on: April 30, 2018, 10:46:28 am »
25 weeks has been the longest I had to wait for a part, otherwise often the assembly houses I work with come to me saying that a particular part has long lead time, but for most parts I try to have several alternatives to compensate for this.
 

Offline olkipukki

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Re: What is your longest lead-time wait?
« Reply #6 on: April 30, 2018, 11:40:08 am »
100nf capacitors are around 40 weeks

Are you after some fancy caps that made once per year and you just missed a time slot?
 

Offline jmelson

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Re: What is your longest lead-time wait?
« Reply #7 on: April 30, 2018, 12:11:48 pm »
100nf capacitors are around 40 weeks
our assemblers keep asking to plan orders ahead for one to two years
Digi-key shows over 2 million components in stock of just ONE part # in 0805 size (their part # 490-4789-2)

Jon
 

Offline filssavi

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Re: What is your longest lead-time wait?
« Reply #8 on: April 30, 2018, 12:27:52 pm »
I guess you guys have been living under a rock or something XD

there is currently a huge shortage of capacitor, the worst is 100nF it seems, it is apparently due to a consumer market grow in demand  (my guess is that to keep the production lines open they are buying anything that even resembles a capacitor unregarding of cost or higher than needed specs) unmet by producers that are at full capacity and unwilling to expand capacity for fear of another economic crisis...

and ok the distributors have something in stock but, first not all MLCC have been created equal, second in certains market substituting a component for another could be extremely difficult, in aerospace for example it probably requires mountains of paper to be reviewed by FAA or equivalent, medical is probably similar, etc
 

Online ataradov

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Re: What is your longest lead-time wait?
« Reply #9 on: April 30, 2018, 12:37:43 pm »
Digi-key shows over 2 million components in stock of just ONE part # in 0805 size (their part # 490-4789-2)
A few weeks back I had a pretty basic 1uF 16V capacitor in my list, and I specifically cheeked that all positions had at least 100K in stock, since I was aware of the shortages (and DK warns you as well).

I ordered 500, and only got 200. So I don't know how accurate their stock numbers are on those parts. It is possible that someone else bought the rest of them, but I kind of doubt it.
Alex
 

Online tggzzz

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Re: What is your longest lead-time wait?
« Reply #10 on: April 30, 2018, 05:11:14 pm »
I had Avnet change an item from "in stock" to 4 months after they confirmed the order and shipping date.

Plonk.
There are lies, damned lies, statistics - and ADC/DAC specs.
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Offline rx8pilot

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Re: What is your longest lead-time wait?
« Reply #11 on: June 23, 2018, 02:23:22 pm »
Is there any relief for the capacitor shortage?

My latest project is fairly complicated power electronics and I am wondering how in the world I am going to keep the BOM cost under control. Caps that were $.75 are now $3.00.  Those are caps that I have about 30pcs in the design adding $65+ just for that part.  Many are not available at any cost.

This is nuts.
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Online tggzzz

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Re: What is your longest lead-time wait?
« Reply #12 on: June 23, 2018, 04:45:06 pm »
Is there any relief for the capacitor shortage?

My latest project is fairly complicated power electronics and I am wondering how in the world I am going to keep the BOM cost under control. Caps that were $.75 are now $3.00.  Those are caps that I have about 30pcs in the design adding $65+ just for that part.  Many are not available at any cost.

This is nuts.

Maybe you will have to add 25% due to the approaching trade war. https://www.bunniestudios.com/blog/?p=5349
There are lies, damned lies, statistics - and ADC/DAC specs.
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Offline ChristopherN

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Re: What is your longest lead-time wait?
« Reply #13 on: June 23, 2018, 08:10:30 pm »
17 to 19 weeks for certain batteries.

Some other stuff like Li* Charger ICs for specialized applications fluctuates a lot, one day you have a lead time of 30 weeks, the next day they appear in stock. I guess many people are putting sales orders in with multiple distributors and only buy the first batch that is available.

We're currently upgrading our ERP system to notify us when something we want is back in stock so we can order directly.
 

Offline Floopy

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Re: What is your longest lead-time wait?
« Reply #14 on: June 29, 2018, 07:13:31 am »
6 Months for a few ICs. I don't know what happened. I just know I got refunded a few months prior.
-Floopy
 

Offline Kean

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Re: What is your longest lead-time wait?
« Reply #15 on: June 29, 2018, 08:48:11 pm »
In March I was quoted 54 weeks by element14 for some capacitors.  I assume it was a typo as I received them just over 2 weeks later.   ;)

Edit: This list published by Future Electronics is quite handy http://www.futureelectronics.com/EN/MARKETCONDITIONS/Pages/index.aspx
« Last Edit: June 29, 2018, 08:49:45 pm by Kean »
 

Offline David Hess

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Re: What is your longest lead-time wait?
« Reply #16 on: July 01, 2018, 01:20:37 am »
For a couple years lead times on many International Rectifier power MOSFETs were indefinite.  We did the same thing many others did and just moved right up the voltage curve to more expensive devices and as time went on, more and more parts became unavailable.
 

Offline SparkyBruce

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Re: What is your longest lead-time wait?
« Reply #17 on: July 12, 2018, 07:28:29 am »
Back in my Alertme days (now Hive) we had a quote through from Texas Instruments for one of their micros that was shown as 246 weeks. I still have a copy of it somewhere.
The reps blamed the computer system of course...
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Offline David Hess

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Re: What is your longest lead-time wait?
« Reply #18 on: July 12, 2018, 08:08:16 am »
Back in my Alertme days (now Hive) we had a quote through from Texas Instruments for one of their micros that was shown as 246 weeks.

Oh, that reminds me of dealing with Motorola.  We were interested in using the 68HC11 series of microcontrollers and got 68HC811s in PLCCs for development but gave up after evaluating availability and lead times and went with Microchip PIC instead.  Several years later, the 68HC24 port replacement units in PLCCs that I ordered were delivered.
 

Offline Kean

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Re: What is your longest lead-time wait?
« Reply #19 on: July 12, 2018, 10:56:57 pm »
...68HC24 port replacement units...
Wow, that brings back memories.  My first experience with vapourware parts.  The only ones I ever saw were on eval boards from Motorola.
 

Offline Neilm

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Re: What is your longest lead-time wait?
« Reply #20 on: July 13, 2018, 04:36:48 am »
Many years ago, I was quoted 62 weeks for a resolver to digital converter chip and the associated laser trimmed resistor pack. Got a few as samples and promptly changed how we were going positional monitoring.
Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe. - Albert Einstein
 

Offline olkipukki

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Re: What is your longest lead-time wait?
« Reply #21 on: July 13, 2018, 05:42:11 am »
Just preparing for a worst... put all current-active and expected BOMs together with some basic math & stats to predict a future  >:D

New order placed for "common" 0.1uF  part...  "Estimated Dispatch Date: 31-Dec-18"* :palm: - seems like a busy 2019 ahead  ;D

The current situation is not really so bad, I can still be "loyal" to same manufacturer and pay a triple cost for same component, but there is always option if you have a time!

* - new record for me
 

Offline David Hess

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Re: What is your longest lead-time wait?
« Reply #22 on: July 13, 2018, 08:48:25 am »
...68HC24 port replacement units...

Wow, that brings back memories.  My first experience with vapourware parts.  The only ones I ever saw were on eval boards from Motorola.

I still have them in a parts cabinet along with the other parts for that project.
 

Offline flasonsmts

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Re: What is your longest lead-time wait?
« Reply #23 on: July 20, 2018, 08:13:26 pm »
normally the consumer electronic products delivery time is one week, the equipments products spend one or 2 month.  too long time will lost customer.
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Online exe

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Re: What is your longest lead-time wait?
« Reply #24 on: July 22, 2018, 10:06:44 pm »
Holy moly, what's happening to capacitors? I went to my supplier to check these ubiquitous 0.1uF 0805 caps. Guess what, most of them out of stock...

PS A few years ago I bought 100 caps for a couple of euros. Does this mean I made a good investment? If someone needs one or two I'm open for offers :)
 


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