Circuits beginner... help... What is meant by S when written on resistance?

Question

I know that resistance unit is ohm , kohm,etc.....
but what is meant ,for example, by 4S resistance....
What is that S ???

You don't have to answer the next question::
How can we write S in pspice?

If i am asking the question in the wrong category , please let me know...

Answer 1

The 4S (Super-Safe, Small and Simple)

If you have a resistor network Then >
Some resistor networks have a "4S" printed on the top of the resistor network. The 4S indicates that the package contains 4 independent resistors that are not wired together inside. The housing has eight leads instead of nine.

Regards.

Answer 2

Siemens or mhos, the inverse of the resistance. 4S = 1/4 ohm. current that flows per volt applied.