Hi,
So I’ve been looking for a series of resistors that can suffice in the operating conditions that I need to put them in. They’re fairly low current (I’m usually dealing with less than 10 mA), but it’s high voltage (My current design assumes a max of 450 VDC, but I wold like to make it to where I can use this same design, and change a few parts to go to my max theoretical spec of 800V). And I need a wide range of values for resistance (I’m using them for voltage dividers). It doesn’t necessarily have to be from the same series, I just need to know what series that I can go for, because I can’t find them
It’d be especially good if I can find resistors that have values of 10k, 6.98k, and 280k, because that’s currently what I have in my build.
Thank you,
G
Hello godini514,
We do carry some resistors that are considered High Voltage. It is in the features as an option to search for. I am guessing that you are looking for Through hole Options. Here are the High Voltage Options that we list.
Looking at your Values that you need here is what I could find.
10K ohm option - A105819-ND This is what we had in stock.
6.98K ohm - This exact value we did not have. The Closest would be a 6.81K ohm or a 7.32K Ohm if those would work for you.
280K ohm - PPCQF280KCT-ND This is what we had in stock.
I did look at some data sheets for other options that were not considered High Voltage. It looks like if you go with a 1W or higher option they usually had a Max working voltage of 500V, so if you stay around the 450V they could work. Below that wattage it would be about 350V rating.
I hope this may help to get you started, If you need any other assistance on finding other resistors Please let us know.
Thanks,
Paul.
Note that the limiting element voltage rating for a resistor only needs to be greater than the actual voltage placed across it; also don’t forget about power ratings; 450V across 10K means upwards of 20 watts…
