Capacitor shortage?

  • Thread starter Dave Plowman (News)
  • Start date

D

Dave Plowman (News)

Wanted some low ESR caps, and RS, CPC and Rapid were all out of stock. Is
there a production problem?
 
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A

Andrew Gabriel

Wanted some low ESR caps, and RS, CPC and Rapid were all out of stock. Is
there a production problem?
I bought several from CPC a couple of months ago.

What has certainly happened is that everyone has cut back on their stock
holding over the last few years, so a tiny supply feed glitch is much
more likely to hit everyone.
 
M

Martin Brown

Wanted some low ESR caps, and RS, CPC and Rapid were all out of stock. Is
there a production problem?
I don't think so - delivery problem maybe?
Just bad luck but I see what you mean today. Many on back order.

Some of the Nichicons with ESR 0.01R are in stock.
I wish there was a button for only show me items "in stock now".

I had some from RS not long since.
 
M

Mike Tomlinson

Andrew Gabriel said:
What has certainly happened is that everyone has cut back on their stock
holding over the last few years
Seems an odd thing to do for such a ubiquitous component.
 
T

tony sayer

Mike Tomlinson said:
Seems an odd thing to do for such a ubiquitous component.
Have you seen the amount of stuff that RS now keep in stock?.

There are many and several such components;!...
 
A

Andrew Gabriel

Seems an odd thing to do for such a ubiquitous component.
The other thing is that so much fewer appliances are manufactured
here - you pretty much can't do it anymore for tax reasons.
(You have to pay duty on imported components, but not if they're
already assembled into a product.) Therefore, there's probably
much less stock held here for manufacturing, and that's where the
bulk of the component stock will have been used years back.
 
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W

whisky-dave

Seems an odd thing to do for such a ubiquitous component.
Maybe no one wants to risk buying a load of possibly 'fake'
capacitors from china,
that's what happene da few years ago showing up in failed mother
boards and PSUs .
Although I've been ordering a few hundred for student projects and I
assume other teaching establishments have too,
not sure that's enough for a shortage, but maybe they are made in the
smae places as the hard drives.
 
G

geoff

Mike Tomlinson said:
Seems an odd thing to do for such a ubiquitous component.
I've been experiencing it on a regular basis from RS for the past few
years
 
M

Mike Tomlinson

geoff <[email protected] said:
I've been experiencing it on a regular basis from RS for the past few
years
Odd. I order low ESR caps from RS quite often (probably not as much as
you though) to fix computer motherboards and switching power supplies
with capacitor plague and they have only been out of stock once or
twice. I usually get the Panasonic ones, as they do the small sizes and
odd values that are sometimes needed.
 
T

tony sayer

Frank Erskine said:
Are condensers still manufactured in Britain, or are they all made in
Japan or China?

TCC
Dubilier
Hunts (aka wire-ended short circuits!)
Plessey
Formo-denser
STC


...are all British makes that spring to mind.
I remember working at a company called Audiolab back in around the late
80's making upmarket audio hi-fi equipment and the designer there Derek
Scotland was always going on about getting -anything- sourced from the
UK components, metalwork, plastic finishing, transformers, PCB's that
had some holes drilled and tracks in place etc etc..

But they used a British made cap for the HF compensation circuits in
their power amps. They I believe were made in Wales somewhere and you
could take them apart unwind them and find that the connecting leads
weren't welded onto the ally foil.

Caused no end of warranty returns usually after the power output
transistors self destructed.

Was quite a revelation working in that industry at the time i.e.
consumer goods after coming form a pro audio Broadcast environment where
quality was paramount, and price wasn't a problem..

I could soon see why after a while sod all came from the UK 'tho the
products were built here the components weren't. He once wanted a
particular spec power transistor. Brit makers wanted around 8 quid each
for them and were very snotty about dealing with a domestic manufacturer
whereas Sanken in Japan said yes, they'll be 1.8123456 pounds each, how
many you take, 10,000 pieces a month minimum;?..

The root cause was in the educational establishment according to Dr
Scotland all to do with the best brains being encouraged to do Medicine,
accountancy and Law, NOT engineering. Citing as usual the cosmetic
finishes on their control knobs, and having to go to Bayer in Germany
for them, where plastics engineering was considered a worthwhile well
paid and well socially regarded job.

Where all the UK could do was mould children's piss pots;!.

I hope thats changed nowadays;!...
 
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tony sayer

Mike Tomlinson said:
Odd. I order low ESR caps from RS quite often (probably not as much as
you though) to fix computer motherboards and switching power supplies
with capacitor plague and they have only been out of stock once or
twice. I usually get the Panasonic ones, as they do the small sizes and
odd values that are sometimes needed.

Do you find it worthwhile do in that nowadays Mike?. The last one I did
took quite sometime clearing the holes out, solder sucker and or wicking
braiding making a rather tedious job of it?..
 
A

Andrew Gabriel

Do you find it worthwhile do in that nowadays Mike?. The last one I did
took quite sometime clearing the holes out, solder sucker and or wicking
braiding making a rather tedious job of it?..
I do it for things I own (and immediate family).
Recently did two 5V 2A SMPSU wall warts, 7 years old.
I don't offer it as a service, as it would never be worth it time-wise.
Even on minimum wage for labour alone, it would be cheaper to buy new ones.
The time consuming bit was initial diagnosis, and opening the case
non-destructively, and reclosing it afterwards. It was ultrasonic welded
originally. The component replacement was the easy bit.
 
D

Dave Plowman (News)

Odd. I order low ESR caps from RS quite often (probably not as much as
you though) to fix computer motherboards and switching power supplies
with capacitor plague and they have only been out of stock once or
twice. I usually get the Panasonic ones, as they do the small sizes and
odd values that are sometimes needed.
That's what I was after - perhaps odd sizes since I didn't already have
them. Only 3 different values - but was surprised when they were listed
by all of them but no-one had stock.
 
D

Dave Plowman (News)

Do you find it worthwhile do in that nowadays Mike?. The last one I did
took quite sometime clearing the holes out, solder sucker and or wicking
braiding making a rather tedious job of it?..
You might find the de-solder station from CPC Geoff mentioned at a now
affordable price worthwhile?

I find my Pace based one indispensable. It's one of those things you
simply don't know what you're missing until you have one. ;-)
 
A

Andy Wade

On 22/03/2012 08:20, tony sayer wrote:
[...]
But they used a British made cap for the HF compensation circuits in
their power amps. They I believe were made in Wales somewhere and you
could take them apart unwind them and find that the connecting leads
weren't welded onto the ally foil.
MFD Capacitors, Wrexham, or LCR Components, Ebbw Vale, are both still in
business, as are BHC Aerovox in Weymouth and Syfer in Norwich (the last
remnant of Erie, I think):

http://www.mfdcapacitors.co.uk/index.htm
http://www.lcrcapacitors.co.uk/
http://www.protonltd.com/bhc1eng.htm
http://www.syfer.com/

So yes Frank, we do still make condensers in the UK. [C|H]unts are long
gone though (good riddance) as are TCC (AFAIK) and many others (remember
Pye Capacitors, Tony?).
 
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T

tony sayer

Andy Wade <[email protected] said:
On 22/03/2012 08:20, tony sayer wrote:
[...]
But they used a British made cap for the HF compensation circuits in
their power amps. They I believe were made in Wales somewhere and you
could take them apart unwind them and find that the connecting leads
weren't welded onto the ally foil.
MFD Capacitors, Wrexham, or LCR Components, Ebbw Vale, are both still in
business, as are BHC Aerovox in Weymouth and Syfer in Norwich (the last
remnant of Erie, I think):

http://www.mfdcapacitors.co.uk/index.htm
http://www.lcrcapacitors.co.uk/
http://www.protonltd.com/bhc1eng.htm
http://www.syfer.com/

So yes Frank, we do still make condensers in the UK. [C|H]unts are long
gone though (good riddance) as are TCC (AFAIK) and many others (remember
Pye Capacitors, Tony?).
Just about;!. The LCR ones were the make that gave the problem, soon
after changed to a Jap one;!...
 
T

tony sayer

Dave Plowman (News) said:
You might find the de-solder station from CPC Geoff mentioned at a now
affordable price worthwhile?
OK .. Might get one of they..
I find my Pace based one indispensable. It's one of those things you
simply don't know what you're missing until you have one. ;-)
Bin there .. not got that;!!..
 
M

Mike Tomlinson

tony sayer said:
Do you find it worthwhile do in that nowadays Mike?
Hell yeah. I hate throwing good working hardware out for the sake of a
handful of caps and a few minutes' soldering. Plus you get the
satisfaction that comes from fixing something.
. The last one I did
took quite sometime clearing the holes out, solder sucker and or wicking
braiding making a rather tedious job of it?
It can be tricky as one or both pins of the cap can be soldered to a
power plane which conducts heat away from the iron and prevents the
solder melting totally, so the sucker fails to clear the hole. I use
two irons - a 25W one for 'normal' pads and a 50W one for those on a
power plane.

On a related topic, I had to order a few caps in today to repair the
power supply for a Topfield PVR. All were in stock from RS.
 
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