[R-390] Caps

[KR4HV]

Doesn't the 716P have a different form factor?  Maybe a little flatter?

Walt
KR4HV

-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]
On Behalf Of David Wise
Sent: Tuesday, April 30, 2013 6:18 PM
To: r-390 at mailman.qth.net
Subject: Re: [R-390] Caps

I did a bit of shopping at Mouser, and found the following film/foil C553
candidates:

Wima FKP1 (five voltages, $1.13 at 1kV to $2.84 at 6kV) CDE DMT ($1.64,
630V) CDE WMF (axial leads!  $2.14, 630V) Vishay/Sprague or CDE 715P (three
voltages, $1.85 at 600V to $4.45 at 1.6kV)

Wima is the cheapest and most abundant.  Are they reliable?

The following are hybrid metalized/foil and therefore contraindicated:

CDE DPPM
CDE 942C (axial)
Wima FKP4

Dave Wise
SWL in Hillsboro OR

-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]
On Behalf Of Charles P. Steinmetz
Sent: Monday, April 29, 2013 4:29 PM
To: r-390 at mailman.qth.net
Subject: Re: [R-390] Caps

The only caps I can recommend for C553 are film-and-foil ODs of the
appropriate value (0.01 uF) and a voltage rating of 600 Vdc or above.
Series 225P, 715P, or PS will work (the Series is the first 3 digits of the
part number, or the second and third character in the case of Series PS):

225P10396X      600 Vdc
715P10396K      600 Vdc
716P10396J      600 Vdc
6PSS10          600 Vdc

I do not see any need to use caps rated at more than 600 Vdc.

Series 716P and 418P will also work, but they are special order items.  Some
of the higher voltage rated 715P caps are also special order items.
Sometimes distributors have specials in stock because a large customer
needed them, but they are generally rare.


Best regards,

Charles






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