M
markp
Hi All,
I have a pair of signals that can be +/-75V (it's actually a pair of
squarewave signals of opposite phase, when one signal is +75V the other is
0V, and when it is 0V the other is +75V). The question is, can I use a
connector with a floating pin between them, even if the creepage and
clearance calculations for each pin are, say, only 60V? My guess is you can,
but do you have to allow some kind of de-rating?
For a hypothetical example, let's say I have two signals of +/-75V. I work
out that ideally I could use two pads on the PCB, say a minimum of 1.5mm
apart. However, I have only got a 1mm connector, but I have got 3 pins on it
so the middle one can be left floating and not connected to anything. I'm
guessing it depends on the toital *clearance* between the two outer pads,
and so the width of the middle pad has to be subtracted from the distance
between the two outer pads before the calculation is made.
Any views?
Mark.
I have a pair of signals that can be +/-75V (it's actually a pair of
squarewave signals of opposite phase, when one signal is +75V the other is
0V, and when it is 0V the other is +75V). The question is, can I use a
connector with a floating pin between them, even if the creepage and
clearance calculations for each pin are, say, only 60V? My guess is you can,
but do you have to allow some kind of de-rating?
For a hypothetical example, let's say I have two signals of +/-75V. I work
out that ideally I could use two pads on the PCB, say a minimum of 1.5mm
apart. However, I have only got a 1mm connector, but I have got 3 pins on it
so the middle one can be left floating and not connected to anything. I'm
guessing it depends on the toital *clearance* between the two outer pads,
and so the width of the middle pad has to be subtracted from the distance
between the two outer pads before the calculation is made.
Any views?
Mark.