Original poster: Jim Lux <jimlux@xxxxxxxxxxxxx> At 05:55 AM 1/16/2006, you wrote:
Original poster: BunnyKiller <bunikllr@xxxxxxx> while we are on the subject....lets see if someone can explain the numeric code on very small ( physical size) caps....for example what is the value of a ceramic cap with "560" as the only marking on it or "100K 1KV"
3 digit codes are similar to resistor color codes. Two significant figures, and the number of zeros following: 560 is, therefore, 56. The question would then be whether it's 56 uF (unlikely), 56 nF or 56 pF, which you'd have to figure out some other way. pF is very common
For example, a 103 is a .01 uF (10,000 pF)100K is probably in pF... 0.1 uF, therefore. for 1kV, I assume it's a fairly good sized capacitor? (on the order of 1 cc)
good thing I have a cap meter but having to test 30 caps to find the one I need is a pain...some of the numerics dont even make sence to me from the meter reading test... Scot D Tesla list wrote:Original poster: "Gerry Reynolds" <gerryreynolds@xxxxxxxxxxxxx> Hi Al, You got most of it right. f = farads uf = microfarads (10^-6) nf = nanofarads (10^-9) pf = picofarads (10^-12) tf = themptofarad (10^-15) used in IC design (hope spelled right)MFD is also microfarads. I dont remember ever hearing of capacitance expressed in millifarads so I suspect MF is also microfarads (just not sure on this one).1000 tf = 1 pf 1000 pf = 1 nf 1000 nf = 1 uf 1000000 tf = 1 nf 1000000 pf = 1 uf 1000000 uf = 1 f Hopes this helps, Gerry R.