Mitsubishi Electric MR-J2S B Series Instruction Manual page 217

12. OPTIONS AND AUXILIARY EQUIPMENT
(f) Varistors for input power supply (Recommended)
Varistors are effective to prevent exogenous noise and lightning surge from entering the servo
amplifier. When using a varistor, connect it between each phase of the input power supply of the
equipment. For varistors, the TND20V-431K and TND20V-471K manufactured by Nippon Chemi-
con, are recommended. For detailed specification and usage of the varistors, refer to the
manufacturer catalog.
Varistor
TND20V-431K
TND20V-471K
D
W E
d
Maximum rating
Permissible circuit Surge current
voltage immunity
AC[V ] DC[V] 8/20 s[A]
rms
275 350 10000/1 time
300 385 7000/2 time
T
Model
TND20V-431K
TND20V-471K
Note. For special purpose items for lead length (L), contact the manufacturer.
Maximum limit
Rated
Energy
pulse
immunity
power
2ms[J] [W]
195
1.0
215
D H
Max. Max. Max.
21.5 24.5
12 - 58
Static
capacity
voltage (reference
value)
[A] [V] [pF]
710 1300 430(387 to 473)
100
775 1200 470(423 to 517)
T E (Note)L
1.0 min.
6.4 3.3
20
6.6 3.5
Varistor voltage
rating (range)
V1mA
[V]
[Unit: mm]
d W
0.05 1.0
0.8 10.0