Varistor Products
Low Profile
RA Varistor Series
Absolute Maximum Ratings For ratings of individual members of a series, see Device Ratings and Specifications chart
Continuous:
Steady State Applied Voltage:
AC Voltage Range (V
DC Voltage Range (V
Transient:
Peak Pulse Current (I
RA8 SERIES RA16 SERIES RA22 SERIES UNITS
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 to 275
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 to 369
10to 275
14 to 369
4 to 275
18 to 369
V
V
M(AC)RMS
M(DC
)
TM
For 8/20µs Current Wave (See Figure 2).. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 to1200
1000 to 4500
2000 to 6500
A
Single Pulse Energy Range (
For 10/1000µs Current Wave (W ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.4 to 23
Operating Ambient Temperature Range (T ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 125
)
Note 1
3.5 to 75
-55 to -125
-55 to 150
70 to 160
-55 to -125
-55 to 150
J
OC
OC
TM
A
Storage Temperature Range (T
Temperature Coefficient (αV) of Clamping Voltage
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 150
STG
(V ) at Specified Test Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <0.01
Hi-Pot Encapsulation (Isolation Voltage Capability)
<0.01
<0.01
%/OC
C
(Dielectric must withstand indicated DC voltage for
one minute per MIL-STD 202, Method 301) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5000
Insulation Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000
5000
1000
5000
1000
V
MΩ
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device
at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Device Ratings and Specifications (Note 1)
o
o
MAXIMUM RATINGS (125 C)
CONTINUOUS TRANSIENT
PEAK
SPECIFICATIONS (25 C)
MAX CLAMPING
VOLTAGE V AT
C
TEST CURRENT
VARISTOR VOLTAGE AT
1mADC TEST
TYPICAL
CAPACI-
TANCE
ENERGY
CURRENT
V
V
(10/1000µs)
(8/20µs)
CURRENT
(8/20µs)
RMS
DC
V
V
W
I
MIN
(V)
V
MAX
(V)
V
I
P
f = 1MHz
(pF)
M(AC)
(V)
M(DC)
(V)
TM
TM
N(DC)
(V)
C
PART
NUMBER
BRAND
(J)
(A)
(V)
(A)
† RA8 SERIES
V8RA8
8R
4
6
5.5
8
0.4
0.6
0.8
150
150
250
250
6
8.2
12
18
22
11.2
16
22
34
42
47
5
5
5
5
3000
2500
2000
1600
V12RA8
12R
18R
22R
9
V18RA8
10
14
14
18
14.4
18.7
21.6
26
V22RA8
10
(Note 3)
(Note 2)
V27RA8
V33RA8
27R
33R
17
20
22
1.0
1.2
250
250
23
29.5
35
27
33
31.1
36.5
43
57
5
5
1300
1100
900
800
700
600
500
400
300
250
200
180
160
150
130
100
26
68
V39RA8
39R
25
31
1.5
250
39
79
5
V47RA8
47R
30
38
1.8
250
42
47
52
92
5
V56RA8
56R
35
45
2.3
250
50
56
62
107
127
135
165
205
250
295
340
360
395
455
595
5
V68RA8
68R
40
56
3.0
250
61
68
75
5
V82RA8
82R
50
66
4.0
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
74
82
91
10
10
10
10
10
10
10
10
10
10
V100RA8
V120RA8
V150RA8
V180RA8
V200RA8
† V220RA8
† V240RA8
† V270RA8
100R
120R
150R
180R
200R
220R
240R
270R
360R
60
81
5.0
90
100
120
150
180
200
220
240
270
360
110
132
165
198
228
242
268
303
396
75
102
127
153
175
180
200
225
300
6.0
108
135
162
184
198
212
247
324
95
8.0
115
130
140
150
175
230
10.0
11.0
12.0
13.0
15.0
20.0
V360RA8
†
138
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