LCR-8000G Series User Manual 
44 
Reactance (X) and Susceptance (B = 1/X) 
 
Reactance measures the imaginary part of 
Impedance (Z) caused by capacitors or inductors. 
Susceptance is the reciprocal of Reactance and 
measures the imaginary part of Admittance (Y), 
which is also the reciprocal of Impedance. 
Series Reactance (X
S
) 
Note: Reactance is 
available only in series 
circuit model. 
Parallel Susceptance (B
P
) 
Note: Susceptance is 
available only in parallel 
circuit model. 
  X
S
 + Q 
  X
S
 + D 
  X
S
 + R
S
 
  B
P
 + Q 
  B
P
 + D 
  B
P
 + R
P
 
  B
P
 + G
P
 
w ww . . co m
information@itm.com1.800.561.8187