Mitsubishi Electric MELSERVO MR-J5 Series User Manual page 363

Varistor for input power supply (recommended)
Varistors are effective to prevent exogenous noise and lightning surges 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,
TND20V-471K, and TND20V-102K manufactured by Nippon Chemi-Con are recommended. For detailed specification and
usage of the varistors, refer to the manufacturer catalog.
Power Varistor Maximum rating
supply
voltage
Permissible
circuit voltage
AC
[Vrms]
200 V TND20V-431K 275
TND20V-471K 300
400 V TND20V-102K 625
D
T
E
W
φd
[Unit: mm]
Model D Max.
TND20V-431K 21.5
TND20V-471K
TND20V-102K 22.5
*1 For special purpose items for lead length (L), contact the manufacturer.
Surge Energy
current immunit
immunity y
DC [V] 8/20 μs [A] 2 ms [J]
350 10000/1 time 195
7000/2 times
385 215
825 7500/1 time 400
6500/2 times
H Max. T Max.
24.5 6.4
6.6
25.5 9.5
Maximum
limit voltage
Rated [A] [V]
pulse
power
[W]
1.0 100 710
775
1.0 100 1650
*1
E ±1.0 L Min.
3.3 20
3.5
6.4 20
6 OPTIONS AND PERIPHERAL EQUIPMENT
6.15 Noise reduction techniques
Static Varistor voltage
capacity rating (range) V1
(referenc mA
e value)
[pF] [V]
1300 430 (387 to 473)
1200 470 (423 to 517)
560 1000 (900 to 1100)
φd ±0.05 W ±1.0
0.8 10.0
0.8 10.0
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