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Varistor Products
©2009 Littelfuse, Inc.
Revision: November 11, 2009
RA Varistor Series
Low Profile / Application Specific Varistors > RA Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/ra.html for current information.
RA Series Ratings & Specifications
Part
Number
Brand
Maximum Rating (125°C) Specifications (25°C)
Continuous Transient
Varistor Voltage at 1mA
DC Test Current
Max Clamping
Volt V
C
at 2.0A
(8/20μs)
Typical
Capacitance
V
RMS
V
DC
Energy
(10/1000μs)
Peak
Current
(8/20μs)
V
M(AC)
V
M(DC)
W
TM
I
TM
Min V
N(DC)
Max V
C
I
p
f = 1MHz
(mm) (V) (V) (J) (A) (V) (V) (V) (V) (A) (pF)
† RA8 Series
V8RA8 8R 4 5.5 0.4 150 6 8.2 11.2 22 5 3000
V12RA8 12R 6 8 0.6 150 9 12 16 34 5 2500
V18RA8 18R 10 14 0.8 250 14.4 18 21.6 42 5 2000
V22RA8 22R 14
18
(Note 3)
10
(Note 2)
250 18.7 22 26 47 5 1600
V27RA8 27R 17 22 1.0 250 23 27 31.1 57 5 1300
V33RA8 33R 20 26 1.2 250 29.5 33 36.5 68 5 1100
V39RA8 39R 25 31 1.5 250 35 39 43 79 5 900
V47RA8 47R 30 38 1.8 250 42 47 52 92 5 800
V56RA8 56R 35 45 2.3 250 50 56 62 107 5 700
V68RA8 68R 40 56 3.0 250 61 68 75 127 5 600
V82RA8 82R 50 66 4.0 1200 74 82 91 135 10 500
V100RA8 100R 60 81 5.0 1200 90 100 110 165 10 400
V120RA8 120R 75 102 6.0 1200 108 120 132 205 10 300
V150RA8 150R 95 127 8.0 1200 135 150 165 250 10 250
V180RA8 180R 115 153 10.0 1200 162 180 198 295 10 200
V200RA8 200R 130 175 11.0 1200 184 200 228 340 10 180
† V220RA8 220R 140 180 12.0 1200 198 220 242 360 10 160
† V240RA8 240R 150 200 13.0 1200 212 240 268 395 10 150
† V270RA8 270R 175 225 15.0 1200 247 270 303 455 10 130
† V360RA8 360R 230 300 20.0 1200 324 360 396 595 10 100
† V390RA8 390R 250 330 21.0 1200 354 390 429 650 10 90
† V430RA8 430R 275 369 23.0 1200 389 430 473 710 10 80
† RA16 Series
V18RA16 18R16 10 14 3.5 1000 14.4 18 21.6 39 10 11000
V22RA16 22R16 14
18 (Note
3)
50 (Note
2)
1000 18.7 22 26 43 10 9000
V27RA16 27R16 17 22 5.0 1000 23 27 31.1 53 10 7000
V33RA16 33R16 20 26 6.0 1000 29.5 33 36.5 64 10 6000
V39RA16 39R16 25 31 7.2 1000 35 39 43 76 10 5000
V47RA16 47R16 30 38 8.8 1000 42 47 52 89 10 4500
V56RA16 56R16 35 45 10.0 1000 50 56 62 103 10 3900
V68RA16 68R16 40 56 13.0 1000 61 68 75 123 10 3300
V82RA16 82R16 50 66 15.0 4500 74 82 91 145 50 2500
V100RA16 100R16 60 81 20.0 4500 90 100 110 175 50 2000
V120RA16 120R16 75 102 22.0 4500 108 120 132 205 50 1700
V150RA16 150R16 95 127 30.0 4500 135 150 165 255 50 1400
V180RA16 180R16 115 153 35.0 4500 162 180 198 300 50 1100