
© 2013 Littelfuse, Inc.
244
Revised: May 8, 2013
Varistor Products
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/smov34s.html for current information.
SMOV34S Varistor Series
Thermally Protected Varistors > SMOV34S Series
Part
Number
Maximum Rating (75°C) Specifications (25 °C)
Continuous Transient
Varistor
Voltage at
1mA Test
Current
Maximum
Clamping
Voltage
8/20μs
Typical
Capacitance
f = 1MHz
AC
Volts
DC
Volts
Energy
2ms
Peak
Surge
Current
8/20μs
Nominal
Discharge
Current
V
M (AC)
RMS
V
M(DC)
W
TM
I
TM
1 × Pulse
In
V
N(DC)
Min
V
N(DC)
Max
Vc I
PK
C
(V) (V) (J) (A) (A) (V) (V) (A) (pF)
SMOV34S111MP
115 150 280 40000 20000 163 202 305 200 11500
SMOV34S111NP
SMOV34S131MP
130 175 310 40000 20000 184 228 345 200 10000
SMOV34S131NP
SMOV34S151MP
150 200 360 40000 20000 212 268 405 200 8000
SMOV34S151NP
SMOV34S181MP
180 240 400 40000 20000 254 312 488 200 6800
SMOV34S181NP
SMOV34S251MP
250 320 490 40000 20000 354 429 650 200 5000
SMOV34S251NP
SMOV34S271MP
275 350 550 40000 20000 389 473 730 200 4500
SMOV34S271NP
SMOV34S301MP
300 385 590 40000 20000 433 528 780 200 4050
SMOV34S301NP
SMOV34S321MP
320 420 640 40000 20000 462 561 830 200 3800
SMOV34S321NP
SMOV34S421MP
420 560 910 40000 20000 610 748 1130 200 3000
SMOV34S421NP
SMOV34S461MP
460 610 960 40000 10000 642 783 1188 200 2800
SMOV34S461NP
SMOV34S511MP
510 675 960 40000 10000 735 910 1350 200 2500
SMOV34S511NP
SMOV34S551MP
550 700 965 40000 10000 770 939 1415 200 2250
SMOV34S551NP
SMOV34S621MP
620 80 0 1010 40000 10000 900 1100 1625 200 2100
SMOV34S621NP
SMOV34S751MP
750 970 1200 40000 10000 1080 1320 2000 200 1800
SMOV34S751NP
SMOV34S Series Ratings & Specifications
Average power dissipation of transients should not exceed 2.0 watts
Same ratings and specifications apply to Non Isolated Monitored Switch alternative design. Replace "M" with "N" in the part number. e.g.: SMOV34S111NP.
Refer to Part Number System at the end of this document.
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