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Capacitor Array?

H

Hammy

Jan 1, 1970
0
When they specify a capacitance for say a 4 element array of 56pF
does this mean there are four 56pf caps or the total capacitance of
the array is 56pf?
 
H

Hammy

Jan 1, 1970
0
What's the context?

I'm placing an order at dig key some of which is for an elliptic LPF.

I would like to use the arrays to make up the capacitors in the
filter. The data sheets I've been looking at Digikey don't state if
it's total array capacitance or each elements capacitance.

I'm searching under capacitor arrays at Digikey.Here is an example TDK
data sheet.

http://www.tdk.co.jp/tefe02/e4182_ckc.pdf

I've alaways assumed it was specified for each element now I'm not
sure.
 
H

Hammy

Jan 1, 1970
0
I'm placing an order at dig key some of which is for an elliptic LPF.

I would like to use the arrays to make up the capacitors in the
filter. The data sheets I've been looking at Digikey don't state if
it's total array capacitance or each elements capacitance.

I'm searching under capacitor arrays at Digikey.Here is an example TDK
data sheet.

http://www.tdk.co.jp/tefe02/e4182_ckc.pdf

I've alaways assumed it was specified for each element now I'm not
sure.

Forgot here is where I'm searching

http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=capacitor&stock=1

Under Capacitors ---> Arrays
 
H

Hammy

Jan 1, 1970
0
It is amusing that in the above TDK data sheet, and the Panasoinc one at
http://industrial.panasonic.com/www-data/pdf/AEH0000/AEH0000CE4.pdf they
manage to avoid actually stating that the capacitance value is for each
individual capacitor, but this does follow from the performance of the
'measurement circuit' in the Panasonic note. It's also rather likely in the
case of the TDK part - in fact, much more likely than the given value being
the sum of the individual values.

Why not ask Digikey?

Chris
I have some of these on hand 0.1uf 4 element array.

http://www.newark.com/taiyo-yuden/e4k212b7104kd-t/ceramic-capacitor-array/dp/08P5136?Ntt=08P5136

I soldered one into a blank PCB and measured 428nf. So it is 4
elements times the specified value.
 
U

Uwe Hercksen

Jan 1, 1970
0
Hammy said:
When they specify a capacitance for say a 4 element array of 56pF
does this mean there are four 56pf caps or the total capacitance of
the array is 56pf?

Hello,

for resistor arrays they usually specify the value of each single
resistor, especially if those are independent resistors not connected
together.

Bye
 
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