Why electrolytic capacitors are kinda sh**ty

RustySpoons

Sleepy Hollow
Joined
Jan 31, 2018
Messages
2,345
Reaction score
1,278
Points
113
Age
42
My Satellite Setup
50E - 30W
2x CM 1.2m Polar Mount/Jack
65E- 65W
Gibertini 1m OP100 - STAB HH100 - Inverto Black Ultra 0.2 Twin
Mutant HD51
Edision Primo IP S2
Dreambox DM800HD
Venton Unibox HD2
Sony Bravia 55" 4K
My Location
South Wales
Interesting video, this and other videos were originally part of the YouTube Rental system.
But as that's now abolished he's released them:
 

2cvbloke

Regular Member
Joined
Jan 5, 2006
Messages
9,768
Reaction score
1,808
Points
113
Age
38
My Satellite Setup
No satellite stuff for the moment (aside from a 43cm minidish that was on the house already), Samsung SyncMaster T27B550 Smart TV & Monitor, and a few computers...
My Location
Near Pontop Pike, Co. Durham
Not to mention, crappy electrolytic capacitors have a bad habit of vomiting their contents due to poor manufacturing techniques... :)
 

RustySpoons

Sleepy Hollow
Joined
Jan 31, 2018
Messages
2,345
Reaction score
1,278
Points
113
Age
42
My Satellite Setup
50E - 30W
2x CM 1.2m Polar Mount/Jack
65E- 65W
Gibertini 1m OP100 - STAB HH100 - Inverto Black Ultra 0.2 Twin
Mutant HD51
Edision Primo IP S2
Dreambox DM800HD
Venton Unibox HD2
Sony Bravia 55" 4K
My Location
South Wales
Not to mention, crappy electrolytic capacitors have a bad habit of vomiting their contents due to poor manufacturing techniques... :)
Or incomplete stolen chemical formulas...
AND, they wouldn't possibly put a lower temp cap in a high temp area for built in obsolescence would they :-rofl2
 

2cvbloke

Regular Member
Joined
Jan 5, 2006
Messages
9,768
Reaction score
1,808
Points
113
Age
38
My Satellite Setup
No satellite stuff for the moment (aside from a 43cm minidish that was on the house already), Samsung SyncMaster T27B550 Smart TV & Monitor, and a few computers...
My Location
Near Pontop Pike, Co. Durham
Or incomplete stolen chemical formulas...

Hence poor manufacturing techniques, cos it's a pretty poor job if they can't steal the right recipe in full... :-rofl2
 

dig deep

Prince of Birthdays
Staff member
Joined
Sep 28, 2005
Messages
8,972
Reaction score
424
Points
83
My Satellite Setup
Dream7020 and AZ Elite and a few DM800
My Location
Sweden
You get what You pay for me think.
 
A

Archive7

Guest
There are reliable electrolytic capacitors manufactured by reputable manufacturers. Always insist on knowing the name of the manufacturer and check their specs. If you think the capacitor can get hot in your application, buy the 105C instead of 85C and check the date code.
Of course storage conditions are important.
 

Terryl

Specialist Contributor
Joined
Apr 14, 2011
Messages
3,246
Reaction score
1,932
Points
113
Age
82
My Satellite Setup
OpenBox X5 on a 1 meter motorized dish.
And now a 10 foot "C" band dish.

Custom built PC
My Location
Deep in the Boonies in the central Sierra Nevada mountains of California.
I always replace them with a better quality and a higher voltage and temperature range on the caps, remember these hummers are built from stuff bought from the lowest bidder.
 

RustySpoons

Sleepy Hollow
Joined
Jan 31, 2018
Messages
2,345
Reaction score
1,278
Points
113
Age
42
My Satellite Setup
50E - 30W
2x CM 1.2m Polar Mount/Jack
65E- 65W
Gibertini 1m OP100 - STAB HH100 - Inverto Black Ultra 0.2 Twin
Mutant HD51
Edision Primo IP S2
Dreambox DM800HD
Venton Unibox HD2
Sony Bravia 55" 4K
My Location
South Wales
I only order Panasonic, Nippon Chemicon or Rubicon mainly, I NEVER use cheap brands.
 

RustySpoons

Sleepy Hollow
Joined
Jan 31, 2018
Messages
2,345
Reaction score
1,278
Points
113
Age
42
My Satellite Setup
50E - 30W
2x CM 1.2m Polar Mount/Jack
65E- 65W
Gibertini 1m OP100 - STAB HH100 - Inverto Black Ultra 0.2 Twin
Mutant HD51
Edision Primo IP S2
Dreambox DM800HD
Venton Unibox HD2
Sony Bravia 55" 4K
My Location
South Wales
There are reliable electrolytic capacitors manufactured by reputable manufacturers. Always insist on knowing the name of the manufacturer and check their specs. If you think the capacitor can get hot in your application, buy the 105C instead of 85C and check the date code.
Of course storage conditions are important.
I worked for a large worldwide known electronics company that put 85c in the SMPS on purpose. To break after a year lol
 

Terryl

Specialist Contributor
Joined
Apr 14, 2011
Messages
3,246
Reaction score
1,932
Points
113
Age
82
My Satellite Setup
OpenBox X5 on a 1 meter motorized dish.
And now a 10 foot "C" band dish.

Custom built PC
My Location
Deep in the Boonies in the central Sierra Nevada mountains of California.
We would all still be back in the horse and buggy days if someone hadn't come up with "Design Obsolesance" and also figured out how to make things break a few months after the warrenty runs out, keeps the factory's turning.
 

RustySpoons

Sleepy Hollow
Joined
Jan 31, 2018
Messages
2,345
Reaction score
1,278
Points
113
Age
42
My Satellite Setup
50E - 30W
2x CM 1.2m Polar Mount/Jack
65E- 65W
Gibertini 1m OP100 - STAB HH100 - Inverto Black Ultra 0.2 Twin
Mutant HD51
Edision Primo IP S2
Dreambox DM800HD
Venton Unibox HD2
Sony Bravia 55" 4K
My Location
South Wales

Terryl

Specialist Contributor
Joined
Apr 14, 2011
Messages
3,246
Reaction score
1,932
Points
113
Age
82
My Satellite Setup
OpenBox X5 on a 1 meter motorized dish.
And now a 10 foot "C" band dish.

Custom built PC
My Location
Deep in the Boonies in the central Sierra Nevada mountains of California.
Hey...A ride through window...And is there something for the horse???
 

Lazarus

Retired Moderator
Joined
May 29, 2009
Messages
27,078
Reaction score
8,664
Points
113
My Satellite Setup
80cm Motorised.
Several small Dishes.
Much else.
My Location
North York Moors
Good job that wasn't in France or Belgium - or the horse might have finished on the menu ("Burger, stek cheval" anyone?? :D)


I don't understand why we can't get it (openly!) in the UK.
 

Tururu

Assembled with recycled parts
Joined
Jun 3, 2006
Messages
2,849
Reaction score
964
Points
113
My Satellite Setup
90cm motorised dishes(98x90)+fixed+multiLNB+24Unicable.
Currently 56 satellites, 61°West to 57°East.

Octagon SF8008 4K Twin, VU+Duo², VU+Ultimo4K.
Recycled as the owner.
My Location
North of Madrid (28703 Spain) -3Km of IKEA (40.545847, -3.612012).:-)
In 1980-82 the theft of the dielectric formula of the electrolytic capacitors was rumored, the joke was then that they took a beta that lasts very little,
As you could see, almost all the brands stung those years by putting cheap capacitors, Panasonic also, changed many in the sources of wireless home phones (of the time), had professional equipment and very cheap equipment then.
Change from curro in the 88 and pass to reliable designs at 150% and with more than 30 years old (Digital Equipment Corporation).
The great use "bom" by Spain of these capacitors was for the year 2000-5 problems with cheap equipment of all kinds.
The funny thing is that now there is no cheating, you have what you buy.
Look at the specifications of the electrolytic capacitors for switching power supplies of 105ºC and everything is ok and last (MBTF) as indicated by the manufacturer, if it is correct, they last as indicated and much more.
The life expectancy (MBFT) is 5000 hours.
More than half a year on 24 hours (208days on average), some of them up to 550.
If you turn it off after use, perfect, it can last for many years.
As always, quality material and well-known distributors, nobody gives anything almost free if it's good.
---------
En 1980-82 se rumoreo el robo de la formula del dielectrico de los condensadores electroliticos, el chiste entonces fue que se llevaron una beta que dura muy poco,
como se pudo ver, casi todas las marcas picaron esos años al poner condensadores baratos, Panasonic tambien, cambie muchos en las fuentes de telefonos de casa sin hilos (de la epoca), tenias equipos profesionales y equipos muy baratos entonces.
Cambie de curro en el 88 y pase a diseños fiables al 150% y con mas de 30 años de antiguedad (Digital Equipment Corporation).
El gran uso "bom" por España de estos condensadores fue por el año 2000-5 problemas con equipos baratos de todo tipo.
Lo gracioso es que ahora no hay trampa, tienes lo que compras.
Mire las especificaciones de los condensadores electroliticos para fuentes de alimentacion conmutadas de 105ºC y todo es ok y duran (MBTF) lo indicado por el fabricante, si es correcto, duran lo indicado y mucho mas.
La esperanza de vida (MBFT) es de 5000 horas.
Mas de medio año encendido 24Horas (208dias de media), algunos aguantan hasta 550.
Si lo apagas despues de usar, perfecto, puede durar muchos años.
Como siempre, material de calidad y distribuidores conocidos, nadie da nada casi gratis si es bueno.
 

RimaNTSS

Super Moderator
Staff member
Joined
Jan 7, 2009
Messages
5,601
Reaction score
6,079
Points
113
Age
58
My Satellite Setup
Some SAT-related hardware.
My Location
N-E from Riga
Folks! I've got basket full of capacitors, and can send some samples to you for experiments :-rofl2
 

Attachments

  • Capacitors.jpg
    Capacitors.jpg
    665.6 KB · Views: 13

Lazarus

Retired Moderator
Joined
May 29, 2009
Messages
27,078
Reaction score
8,664
Points
113
My Satellite Setup
80cm Motorised.
Several small Dishes.
Much else.
My Location
North York Moors
^^^^^

Reversed Polarity Tantalums are fun .....
 

Tururu

Assembled with recycled parts
Joined
Jun 3, 2006
Messages
2,849
Reaction score
964
Points
113
My Satellite Setup
90cm motorised dishes(98x90)+fixed+multiLNB+24Unicable.
Currently 56 satellites, 61°West to 57°East.

Octagon SF8008 4K Twin, VU+Duo², VU+Ultimo4K.
Recycled as the owner.
My Location
North of Madrid (28703 Spain) -3Km of IKEA (40.545847, -3.612012).:-)
Tantalo, muy pequeños, mejor algo mas gordos para la "traca final", simil mascletà Fallas Valencianas.
Tantalo, so very small, better something fatter for the "very fat firecrackers", resembled Fallas Valencianas.

Condensador_traca_final.jpg
Condensador_traca_final.jpg
 

RustySpoons

Sleepy Hollow
Joined
Jan 31, 2018
Messages
2,345
Reaction score
1,278
Points
113
Age
42
My Satellite Setup
50E - 30W
2x CM 1.2m Polar Mount/Jack
65E- 65W
Gibertini 1m OP100 - STAB HH100 - Inverto Black Ultra 0.2 Twin
Mutant HD51
Edision Primo IP S2
Dreambox DM800HD
Venton Unibox HD2
Sony Bravia 55" 4K
My Location
South Wales
Folks! I've got basket full of capacitors, and can send some samples to you for experiments :-rofl2
Those brown capacitors, Nippon Chemicon :wub::wub::wub:
They are the best imho

Did you remove all of those from equipment?
 
Top