620PCS 31 Values 0805 SMD Ceramic Capacitor Assortment Kit 1pF-1uF

I use them to fine adjust the digital clock slowing it down if running too fast by soldering in parallel with the quartz.I use values from 1 to 10 pF to slow it down from running 5 seconds fast per month

No problems with these caps

I wanted cheap variety for a project that was going to involve trial and error, so I ordered two sets of these (40 each value) and tested every one of them.Labeled and Measured values (1kHz) with standard deviations were as follows:226 (22uF): 11.2 +/- 0.4 uF106 (10uF): 7.05 +/- 0.4 uF475 (4.7uF): 2.99 +/- 0.4 uF225 (2.2uF): 1.52 +/- 0.03 uF105 (1uF): 830 +/- 39 nF474 (470nF): 357 +/- 19 nF104 (100nF): 175 +/- 10 nF103 (10nF): 10.6 +/- 2.6 nF but these were distinctly bimodal with a group at 8nF and a group at 12nF 20 and 20 each222 (2.2nF): 1.36 +/- .01 nF these appear to be identical to the next group102 (1nF): 1.36 +/- .01 nF as above appear to be identical to the preceding group471 (470pF): 612 +/- 5 pF221 (220pF): 197 +/- 13pF470 (47pF): 44.9 +/- 4 pF also bimodal 20/20330 (33pF): 34.6 +/- 4 pF also bimodal 20/20220 (22pF): 27.6 +/- 0.2 pF100 (10pF): 10.3 +/- 0.5 pF also bimodal 20/20So I am going to split the four bimodal groups and lump the two clearly identical groups and end up with 19 groups instead of 16.The lower values are closer to spec than the higher ones, but there is clearly some sloppiness in how these packages are put together. As before without a way to measure capacitance you are going to be lost.

The labeling is a little odd. No units, had to guess that "226" was 22×10^6 picofarads.Got me out of a jam, but I highly recommend one of the "Sample Book" assortments over a zippoc bag of cut tape.If you need the values listed, go for it, they were quality parts, just didn't fit my workflow as well as I'd like.

The contacts are very inconsistent in terms of size and placement. Some barely have any metal on one end. One contact peeled off the cap when I soldered it to the board. Save yourself potential headaches due to failures and buy name brand capacitors.

There were a couple of values that I needed. But the kit stops at 1uF and its time consuming to search. Some are identified by a peelable stuck-on label which falls off easily.

I tested the10pF =37pf22pf =48pf33pf =51pf47pf =71pfi randomly tested the 1 uf cap and came back at 994nf this seemed reasonable i also tested other cap that i already had to see if maybe my tester was the issue, my tester is fine. either the first four were mislabeled but even than the numbers don't make sense. other cap sets i purchased have tested within a few digits these all test almost 100% high. FYI

Many values are repeats and THE VALUES I NEEDED WEREN'T INCLUDED. Many values are so far out of tolerance that I couldn't use them for anything.