Help finding a cap from Mouser

Try here:

Hi, Rob. The rest of the question is one reason why you're having trouble:

• Relevant frequency / ESR requirements

• Thru-hole or SMT?

• Axial or radial?

• Aluminum electrolytic or other?

• Tolerance?

• Temperature?

• Maximum cost?

If you're just looking for an inexpensive 85C Radial aluminum electrolytic that's +/-20% tolerance, go to the website and punch in:

140-XRL-16V4.7

which are $0.06 in single quantity. There's 25,562 in stock, ready and waiting for your CD4060's tender ministrations. (Hi, Rich ;-)

If this is for a timing circuit requiring stability, you're not going to be too happy with these. They will have quite a bit of leakage current, and will drift with temperature, and over time. But 5% or better tolerance caps get pretty expensive at this size. It might be time to look at that

1/(2.2RxCx)

again, and try to bring Cx down to a smaller value. If you can get it down by an order of magnitude or so, you'll have a number of choices.

While you're at the website, be sure to sign up for a free catalog. Sometimes, the "dead tree" method has its advantages, not the least of which that you don't have to depend on the kindnesses of strangers.

Good luck Chris

At

, you can try searching for the following part numbers and then download the datasheets to see if you like the specs. (Note: Any prices I give might be slightly out of date, but are for qty

1.)

Some of the through-hole 4.7uF Film Capacitors at Mouser.com:

Polyester:

5989-100V4.7-F (10% tolerance, $2.14) 146-250V4.7K (10% tolerance, $2.06) 1430-1475 (10% tolerance, $1.83)

Mixed Film:

505-MKM44.7/250/5 (5% tolerance, "almost linear C/T", $5.26) 581-FFB56L0475K (10% tolerance, $11.43)

Polypropylene:

1429-2475 (DF 0.1% max, 10% tolerance, $3.49)

(If 5 uF would do, there are more choices.)

Polycarbonate:

75-632P475X5050 (5%, but a tad expensive at $143.50)

Good luck.

You could also just do a search for "4.7uF" (without the quotes).

Tom Gootee

circuit.

Thanks all :-)