Post History
Certain high voltage resistors are fairly hard to get, such as the HVR37 series from Vishay. I'm looking at redesigning a board that produces 1000V via a transformer, but I want to use parts that ...
#2: Post edited
by
Lorenzo Donati
·
2023-07-28T20:01:42Z (9 months ago)
Reformatting for better readability.
Substituting multiple lower voltage resistors for a high voltage resistor.
- Substituting multiple lower voltage resistors for a high voltage resistor
Certain high voltage resistors are fairly hard to get, such as the [HVR37 series](http://www.vishay.com/docs/30260/hvr2537.pdf) from Vishay. I'm looking at redesigning a board that produces 1000V via a transformer, but I want to use parts that are more readily available.Is it reasonable and safe to replace, say, a 1MOhm axial resistor rated for 2000V with four 250KOhm surface mount resistors rated for 500V? What might I need to watch out for?
- Certain high voltage resistors are fairly hard to get, such as the [HVR37 series](http://www.vishay.com/docs/30260/hvr2537.pdf) from Vishay.
- I'm looking at redesigning a board that produces 1000V via a transformer, but I want to use parts that are more readily available.
- Is it reasonable and safe to replace, say, a 1MΩ axial resistor rated for 2000V with four 250kΩ surface mount resistors rated for 500V?
- What might I need to watch out for?
#1: Initial revision
by
TimH
·
2020-07-24T22:14:54Z (over 3 years ago)
Substituting multiple lower voltage resistors for a high voltage resistor.
Certain high voltage resistors are fairly hard to get, such as the [HVR37 series](http://www.vishay.com/docs/30260/hvr2537.pdf) from Vishay. I'm looking at redesigning a board that produces 1000V via a transformer, but I want to use parts that are more readily available. Is it reasonable and safe to replace, say, a 1MOhm axial resistor rated for 2000V with four 250KOhm surface mount resistors rated for 500V? What might I need to watch out for?