EEVblog Electronics Community Forum
Electronics => Manufacturing & Assembly => Topic started by: olkipukki on April 28, 2018, 01:41:47 pm
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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?
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I've seen 52 weeks recently. Supposedly some parts from Micron are currently listed as even longer.
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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
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100nf capacitors are around 40 weeks
our assemblers keep asking to plan orders ahead for one to two years
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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...
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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.
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100nf capacitors are around 40 weeks
Are you after some fancy caps that made once per year and you just missed a time slot?
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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
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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
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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.
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I had Avnet change an item from "in stock" to 4 months after they confirmed the order and shipping date.
Plonk.
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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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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 (https://www.bunniestudios.com/blog/?p=5349)
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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.
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6 Months for a few ICs. I don't know what happened. I just know I got refunded a few months prior.
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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 (http://www.futureelectronics.com/EN/MARKETCONDITIONS/Pages/index.aspx)
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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.
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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...
|O
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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.
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...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.
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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.
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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
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...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.
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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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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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Our usual supplier mma0204 10R melf resistor week commencing 04/05/2020!
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I went to my supplier to check these ubiquitous 0.1uF 0805 caps. Guess what, most of them out of stock...
Not saying there isn't a shortage problem with MLCC. Yes, there is, but there's also another problem at play here.
0.1uF 0805 (if I'm guessing right, probably X7R or similar, in low voltage, for power decoupling) is far from ubiquitous. This massive package size is almost never used in power decoupling in most electronics design where voltages are below 50V. This is the source of your problem. If you ask for a niche part almost no one uses, in a situation where the manufacturers have problems delivering even the widely used parts, you'll be out of luck.
Most of the world uses 01005, 0201 or 0402 these days, depending on the integration level. Try 0402, which is still big enough not to be too problematic in P&P or manual soldering.
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Most of the world uses 01005, 0201 or 0402 these days, depending on the integration level. Try 0402, which is still big enough not to be too problematic in P&P or manual soldering.
I'm building a power supply with up to 20V rails. Capacitors in small form factor suffer a lot from DC bias capacity reduction, unfortunately. Although, I might be able to put a few in parallel...
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You won't need 0805 to get around 100nF effective at 20V DC bias.
Also, are you sure you really need exactly 100nF? The point in these small caps is to be of low inductance, in which regard the smaller packages work much better - so less capacitance can be just fine. Paralleling multiple small gives you the inductance benefit as well.
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I bought a few 'classic' 0.1uF reels mid summer and price now increased...(wait,wait,wait) 8x (!!!) :wtf: from same distributor (approx 30 vs 250 now per reel). This is insane...
Back to the topic: a new record has been broken with a lead-time June 2019 >:D
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Just got a mail from Farnell about some Yageo 10uF X5R 0605 MLCC: 52 weeks lead time, expected delivery is 18/11/20 :palm:19