audio-talk

Ha Yes got a phone call from Rapid today regarding a back order for four 4u7 10V OSCON SC Electrolytic Capacitors of which ii received one with order
So three to come the caller said there suppliers would only supply a minimum batch of 500 but rapid said no so turns out I won't get the other three cap now I would have though rapid would order 500 no problem or I wonder do they know that OSCON Caps are no longer made

I fear this is a sign of things to come.

pre65 wrote:I fear this is a sign of things to come.

What, in the Book of revelations sense?

And lo it came to pass that from the east came no solid electrolite caps, the sky became dark, and film caps were all around. And so on.

No, silly !

I mean that the supply of standard descrete (ie non SM) components might start to dry up before too long.

The opposite could be true, they can't make them fast enough to fill demand. Seen that happen as well.

Although does sound odd, min. qty of 500 is "too many", unless of course they mean to discontinue those items

If it's any consolation I'm still waiting on 1 x 1mF originally meant for the power controller, and a couple of other things made it too late to get onto the board as well, so have become "spares"

 

Mike H wrote:The opposite could be true, they can't make them fast enough to fill demand. Seen that happen as well.

Although does sound odd, min. qty of 500 is "too many", unless of course they mean to discontinue those items

If it's any consolation I'm still waiting on 1 x 1mF originally meant for the power controller, and a couple of other things made it too late to get onto the board as well, so have become "spares"

Perhaps
I have often wondered if these Caps the likes of the oscon and black gate for example if they are as good as the press and user reviews seem to claim why are they still not being make the Oscons are raved about in digital devices well we are in a digital world what happened it does look like the world is going SM and don't forget the resistors like the AN Tants and the Holco H4/H8 series and many more
PS anyone got one or three 4u7uf Oscon SC 10 volt

pre65 wrote:No, silly !

I mean that the supply of standard descrete (ie non SM) components might start to dry up before too long.

Nah. There was a discussion about this on diyAudio.

Capacitors will continue to get physically smaller, but resistors... A SMD resistor is usually rated at ~1/8w. For small-signal stuff, then yeah, I'd expect them to start creeping in, but their power ratings are tiny, so big aluminium clad resistors are here to stay.

They're not too difficult to solder anyway, so long as you can see the damn things... (try finding one on carpet).

chris661 wrote:
Capacitors will continue to get physically smaller

are you sure?

but the idea of a plague of film caps paints a sexy mental picture.......yeah, bring it on if you dare!

I thought there already was "a plague of film caps", but the "wrong sort", i.e. not suitable for audio signals.

Chris is right SMD won't do high power. So I reckon there's always going to be axials etc. as required. Although just recently I found 1 Watt SMD's on RS, not too tiny either.

 

Mike H wrote:I thought there already was "a plague of film caps", but the "wrong sort", i.e. not suitable for audio signals.

Chris is right SMD won't do high power. So I reckon there's always going to be axials etc. as required. Although just recently I found 1 Watt SMD's on RS, not too tiny either.

are you sure you've got the right end of the stick......

Chris said they would get smaller........

'n I thought capacitance relied on surface area...perhaps I've got the wrong end of the stick

Its surface area AND distance between plates, so if they are closer together they dont need to be bigger.

Its surface area AND distance between plates, so if they are closer together they dont need to be bigger.

yeahhhh that was my point....

chris661 wrote:


Capacitors will continue to get physically smaller

how can they get smaller if you need the surface area....or are we going into the nth dimension

Nano technology ?

I was mostly talking about resistors BTW.

Didn't want to get involved in capacitors

 

I've no idea where I've been this afternoon but I've certainly missed half the meaning of the posts I've been responding to.......


back to:

Its surface area AND distance between plates, so if they are closer together they dont need to be bigger.

is it possible to get a 10000uf 63v cap in smd format? for example. Or, will it be possible in the future by getting the plates closer together, with the application of Moore's law or some such?