resistor comparison test - tantalum?

[Steve Eddy]

However...

...one could argue that the higher inductance results in greater susceptibility to noise and interference in the audio band.

se

 

[fdegrove]

GRIDSTOPPERS

Hi fellows,

Well put Steve.

I should have perhaps stated more clearly that these serve this particular purpose and will probably be pretty useless for anything else.
No harm done,but would have saved people from posting needlessly.
So my mistake I reckon.

Cheers,

 

[Steve Eddy]

Re: GRIDSTOPPERS

Hi fellows,

Well put Steve.

I should have perhaps stated more clearly that these serve this particular purpose and will probably be pretty useless for anything else.
No harm done,but would have saved people from posting needlessly.
So my mistake I reckon.

Oh don't be so hard on yourself. You were just quoting from their web site. Merely a pawn caught in the crossfire.

se

 

[PhopsonNY]

Hey Eagle1

yeah...long time no speak.

I have done a lot of the stuff we talked about way back when.

the AD8610/ad8620 has turned out to be a great option in all positions we talked about.

Believe me I tried a few options.

The situation at present demands that I use Angela's Tantallums because this is a throught hole application.

cheers

 

[fdegrove]

TANTS

Hi folk,

I notice people mentioning Cornig tantalum resistors.
Do any of you have a link for me so I can take a look at the datasheets.
A distributor would be fine too.

BTW,there is a company called IRC in Corpus Christi manufacturing tantalum nitride resistors (SMD) and making big claims for them.
Anyone experienced with those?

Thks.

Regards,

 

[dorkus]

haven't looked at the Corning tantalums but i have looked at the spec sheets for the IRC tantalum nitride SMD ones. will be getting a few for my resistor comparo definitely. also trying to find a source for the similar Venkel devices.

 

[fdegrove]

VENKEL

Dorkus,

I haven't actually tried it out,just an idea:

http://www.venkel.com/cr_series.htm

mailto:sales@venkel.com

Cheers,

 

[steve jones]

You beat me to it, Frank!

Here's the link to the tants: http://www.venkel.com/pdf/MELF_TFCR.pdf

And at their home page (http://www.venkel.com), there IS a Samples Request button....

BTW, they offer a palladium/silver end termination on their other SMT resistors (CR series). One could ask about this option with their tants. AFAICT, stock the Venkel tants have nickel plated end terminations like the IRCs.

Cheers,
Steve

 

[fdegrove]

SOUNDS EXPENSIVE

Hi folks,

BTW, they offer a palladium/silver end termination on their other SMT resistors (CR series). One could ask about this option with their tants

Wonder if they woulld send samples out on this one.

Cheers,


P.S.Hi Steve.

 

[Steve Eddy]

Re: TANTS

BTW,there is a company called IRC in Corpus Christi manufacturing tantalum nitride resistors (SMD) and making big claims for them.

Yes, those are the ones I mentioned way up top that Mouser recently started carrying.

se

 

[Steve Eddy]

BTW, they offer a palladium/silver end termination on their other SMT resistors (CR series). One could ask about this option with their tants. AFAICT, stock the Venkel tants have nickel plated end terminations like the IRCs.

Why are you worried about a few microns of nickel plating over copper but not worried about the tantalum nitride they're using for the actual resistive element? Or the palladium they're alloying the silver with?

se

 

[fdegrove]

TO STEVE 1 STEVE 2 AND SO ON.

Hi Steve,err.. Steve Eddy,

You have got a point there,shall we start a round on Peltier effects or is that a bad idea?
Ok,ok metal to metal is one thing,alloys quite an other.

Cheers,

 

[steve jones]

Why are you worried about a few microns of nickel plating over copper but not worried about the tantalum nitride they're using for the actual resistive element? Or the palladium they're alloying the silver with?

se

Nickel's magnetic. "Eddy" currents, doncha you know.

Not as prejudiced against the other nonmagnetic elements or alloys.

Steve

 

[steve jones]

From the lesser of two Steves...

Howdy Frank!

Good point on the material junction effects. I hadn't considered that.

Cheers,
Steve

 

[Steve Eddy]

Re: TO STEVE 1 STEVE 2 AND SO ON.

Hi Steve,err.. Steve Eddy,

You have got a point there,shall we start a round on Peltier effects or is that a bad idea?
Ok,ok metal to metal is one thing,alloys quite an other.

Ok. For me, the only "thing" is how the end result sounds and over the years I've learned not to prejudice myself against certain things even if I may have had bad experiences with them in other applications in the past. It's led to some rather interesting surprises.

se

 

[Steve Eddy]

Nickel's magnetic. "Eddy" currents, doncha you know.

Not as prejudiced against the other nonmagnetic elements or alloys.

Hate to break the news to you, but eddy currents are part and parcel of all electrical conductors. In fact, the better the conductor (i.e. the greater its electrical conductivity) the worse things are in terms of eddy currents. So if you're worried about eddy currents, stay away from the better conductors such as silver and copper. They're far far worse than nickel in terms of eddy currents.

se

 

[jteef]

I dont know much about the issue, but the Sept. 30 issue of elec design magazine caught my eye. on the inside cover of the back page, Vishay is advertising 0.15ppm/0.5ppm .01% SMT resistors.

Are these going to be unobtainable for quite some time? I would be interested to hear what other people think of them.

Datasheet link is:
www.vishay.com/doc?63083

jt

 

[fdegrove]

OUCH THAT'S SOBERING.

Any mod fabricated this?

Welcome Dave,BTW.
Knew it couldn't last...sigh.

jteef,

Vishay has always been good to my ears.Really need this kind of spec?

Regards,

 

[dorkus]

whoa

what the hell is going on here? i go away from the thread for a few days and i come back and look what happens...

anyway i'm rounding up resistors pretty soon, going to put orders in at Michael Percy, Mouser, Handmade Electronics, and digikey probably end of the week. last chance to nominate your favorite resistor.

btw: i originally had Vishay S102 on my list but took it off. i simply refuse to pay $6.75 for a single resistor, no matter how good it is. i'm too cheap. i did however include the cheaper VSH, which is still bulk foil but a more reasonble $3.75.

i'm sorry, but the icon is simply the gayest thing i have ever seen here. (no offense to gay people, i mean that in the popular american slang sense, you know, like in that TV show South Park... er, hm, i dunno if they show that in Belgium, i know they have it in France...) anyway that should be

 

[Fred Dieckmann]

Some more hand holding

Here goes for the I don't know how many times.....


http://www.surplussales.com/Resistors/MF7870-15k.html

For example:

RMF00010000R0RF 10k Ohm Vishay S102C .1% .6w 1.75
RMF00009100R0FB 9,100 Ohm Caddock MK132 1% .75w 1.50
RMF00018700R0RF 18.7k .1% .3w Vi 5ppm RNC90Y 3.50

There are lot's of resistors to try here for cheap.

I hear that the VSH are not very good and I would not pay that kind of money for them. Better to spend real money for something very good than half that for trash.

Nevermore,
Fred