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Varistor Products
2
VARISTOR
PRODUCTS
Low Profile
RA V aristor Series
The RA Series transient surge suppressors are varistors (MOVs)
supplied in a low-profile box that features a precise seating plane to
increase mechanical stability for secure circuit-board mounting.This
feature makes these devices suitable for industrial applications critical
to vibration.Their construction permits operation up to 125oC (ambient)
without derating.
The RA series are available in voltage ratings up to 275V V
M(AC)RMS
,
and energy levels up to 140J.These varistors are used in automotive,
motor-control, telecommunication, and military applications.
See RA Series Device Ratings and Specifications table for part number
and brand information.
Features
• Low Profile Outline with Precise Seating Plane
• No Derating up to 125oC Ambient
• Wide Operating Voltage Range
V
M(AC)RMS
.....................................4V to 275V
V
M(DC
)........................................5.5V to 369V
• High Energy Absorption Capability W TM .............up to 140J
• 3 Model Sizes Available . ........RA8, RA16, and RA22
• In-Line Leads
AGENCY APPROV ALS: Recognized under the components program of
Underwriters Laboratories. Certified by CSA.
AGENCY FILE NUMBERS: UL E75961, E56529, E135010;
CSA LR91788.
®
®
查询V100RA16供应商
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Varistor Products
RA V aristor 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
M(AC)RMS
). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 to 275 10to 275 4 to 275 V
DC Voltage Range (V
M(DC
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 to 369 14 to 369 18 to 369 V
Transient:
Peak Pulse Current (ITM)
For 8/20µs Current Wave (See Figure 2).. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 to1200 1000 to 4500 2000 to 6500 A
Single Pulse Energy Range (
Note 1
)
For 10/1000µs Current Wave (WTM). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.4 to 23 3.5 to 75 70 to 160 J
Operating Ambient Temperature Range (TA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 125 -55 to -125 -55 to -125
O
C
Storage Temperature Range (T
STG
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 150 -55 to 150 -55 to 150
O
C
Temperature Coefficient (αV) of Clamping Voltage
(VC) at Specified Test Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <0.01 <0.01 <0.01 %/OC
Hi-Pot Encapsulation (Isolation Voltage Capability)
(Dielectric must withstand indicated DC voltage for
one minute per MIL-STD 202, Method 301)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5000 5000 5000 V
Insulation Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000 1000 1000 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)
RA8 SERIES RA16 SERIES RA22 SERIES UNITS
Low Profile
PART
NUMBER BRAND
MAXIMUM RATINGS (125
o
C) SPECIFICATIONS (25oC)
CONTINUOUS TRANSIENT
VARISTOR VOLTAGE AT
1mA DC TEST
CURRENT
MAX CLAMPING
VOLTAGE V
C
AT
TEST CURRENT
(8/20µs)
TYPICAL
CAPACI-
TANCEV
RMS
V
DC
ENERGY
(10/1000µs)
PEAK
CURRENT
(8/20µs)
V
M(AC)VM(DC)
W
TM
I
TM
MIN V
N(DC)
MAX V
C
I
P
f = 1MHz
(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
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2
VARISTOR
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Low Profile
RA V aristor Series
Device Ratings and Specifications (Note 1) (Continued)
†
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
†
V200RA16 200R16 130 175 38.0 4500 184 200 228 340 50 1000
† V220RA16 220R16 140 180 42.0 4500 198 220 242 360 50 900
†
V240RA16 240R16 150 200 45.0 4500 212 240 268 395 50 800
†
V270RA16 270R16 175 225 55.0 4500 247 270 303 455 50 700
†
V360RA16 360R16 230 300 70.0 4500 324 360 396 595 50 550
†
V390RA16 390R16 250 330 72.0 4500 354 390 429 650 50 500
†
V430RA16 430R16 275 369 75.0 4500 389 430 473 710 50 450
†
RA22 SERIES
V24RA22 24R22 14 18
(Note 3)
100.0
(Note 2)
2000 19.2 24
(Note 4)
26 43 20 18000
V36RA22 36R22 23 31 160.0
(Note 2)
2000 32 36
(Note 4)
40 63 20 12000
†
V200RA22 200R22 130 175 70.0 6500 184 200 228 340 100 1900
†
V240RA22 240R22 150 200 80.0 6500 212 240 268 395 100 1600
†
V270RA22 270R22 175 225 90.0 6500 247 270 303 455 100 1400
†
V390RA22 390R22 250 330 130.0 6500 354 390 429 650 100 1000
†
V430RA22 430R22 275 369 140.0 6500 389 430 473 710 100 900
NOTES:
1. A verage power dissipation of transients not to exceed 0.25W for RA8 Series, 0.60W for RA16 Series, or 1.0W for RA22 Series.
2. Energy ratings for impulse duration of 30ms minimum to one half of peak current value.
3. Also rated to withstand 24V for 5 minutes.
4. 10mA DC Test Current.
†
Under UL File No. E75961 as a recognized component. CSA approved File No. LR91788.
PART
NUMBER BRAND
MAXIMUM RATINGS (125
o
C) SPECIFICATIONS (25oC)
CONTINUOUS TRANSIENT
VARISTOR VOLTAGE AT
1mA DC TEST
CURRENT
MAX CLAMPING
VOLTAGE V
C
AT
TEST CURRENT
(8/20µs)
TYPICAL
CAPACI-
TANCEV
RMS
V
DC
ENERGY
(10/1000µs)
PEAK
CURRENT
(8/20µs)
V
M(AC)VM(DC)
W
TM
I
TM
MIN V
N(DC)
MAX V
C
I
P
f = 1MHz
(V) (V) (J) (A) (V) (V) (V) (V) (A) (pF)
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Varistor Products
RA V aristor Series
Power Dissipation Ratings
Should transients occur in rapid succession, the average power dissipation
required is simply the energy (watt-seconds) per pulse times the number
of pulses per second.The power so developed must be within the specifications shown on the Device Ratings and Specifications table for the
specific device.Further more, the operating values need to be derated
at high temperatures as shown in Figure 1.Because varistors can only
dissipate a relatively small amount of average power they are, therefore,
not suitable for repetitive applications that involve substantial amounts of
average power dissipation.
FIGURE 1. CURRENT, ENERGY AND POWER DERATING
CURVE
100
90
80
70
60
50
40
30
20
10
0
-55 50 60 70 80 90 100 110 120 130 140 150
AMBIENT TEMPERA TURE (
o
C)
PERCENT OF RATED VALUE
100
90
50
10
O
1
T
T
1
T
2
TIME
PERCENT OF PEAK VALUE
Low Profile
O1 = Virtual Origin of Wave
T = Time From 10% to 90% of Peak
T
1
= Virtual Front time = 1.25 • t
T
2
= Virtual Time to Half Value (Impulse Duration)
Example: For an 8/20µs Current Waveform:
8µs = T
1
= Virtual Front Time
20µs = T
2
= Virtual Time to Half Value
FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM
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VARISTOR
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Low Profile
RA V aristor Series
Transient V-I Characteristics Curves
(Continued)
FIGURE 5. CLAMPING VOLTAGE FOR V18RA16 - V68RA16
600
500
400
300
200
100
90
80
70
60
50
40
30
20
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
PEAK AMPERES (A)
MAXIMUM PEAK VOLTS (V)
V68RA16
V56RA16
V47RA16
V39RA16
V33RA16
V27RA16
V22RA16
V18RA16
MAXIMUM CLAMPING VOLTAGE
18 TO 68V
N(DC)
RATING
T
A
= -55oC TO 125oC
FIGURE 3. CLAMPING VOLTAGE FOR V8RA8 - V68RA8
600
500
400
300
200
100
90
80
70
60
50
40
30
20
10
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
PEAK AMPERES (A)
MAXIMUM PEAK VOLTS (V)
V68RA8
V56RA8
V47RA8
V39RA8
V33RA8
V27RA8
V22RA8
V18RA8
V12RA8
V8RA8
MAXIMUM CLAMPING VOLTAGE
8 T
O
68V
N(DC)
RATING
T
A
= -55oC TO 125oC
FIGURE 4. CLAMPING VOLTAGE FOR V82RA8 - V430RA8
MAXIMUM PEAK VOLTS (V)
PEAK AMPERES (A)
10
-2
10-110010
1
10210
3
10
-3
V180RA8
V150RA8
V120RA8
V100RA8
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 5 x 8mm
82 TO 430V
N(DC)
RATING
T
A
= -55oC TO 125oC
4,000
3,000
2,000
1,000
900
800
700
600
500
400
300
200
100
10
4
V82RA8
V270RA8
V360RA8
V220RA8
V200RA8
V240RA8
V430RA8
V390RA8
FIGURE 6. CLAMPING VOLTAGE FOR V82RA16 - V430RA16
MAXIMUM PEAK VOLTS (V)
PEAK AMPERES (A)
10
-2
10-110010
1
10210
3
10
-3
V180RA16
V150RA16
V120RA16
V100RA16
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 5 x 8mm
82 TO 430V
N(DC)
RATING
T
A
= -55oC TO 125oC
4,000
3,000
2,000
1,000
900
800
700
600
500
400
300
200
100
10
4
V82RA16
V270RA16
V360RA16
V220RA8
V200RA8
V240RA16
V430RA16
V390RA16
FIGURE 7. CLAMPING VOLTAGE FOR V24RA22 - V36RA22
300
200
100
90
80
70
60
50
40
30
20
MAXIMUM PEAK VOLTS (V)
PEAK AMPERES (A)
10
-2
10-110010
1
10210
3
10
-3
10
4
V36RA22
V24RA22
MAXIMUM CLAMPING VOLTAGE
24 TO 36V
N(DC)
RATING
T
A
= -55oC TO 125oC
FIGURE 8. CLAMPING VOLTAGE FOR V200RA22 - V430RA22
MAXIMUM PEAK VOLTS (V)
PEAK AMPERES (A)
10
-2
10-110010
1
10210
3
10
-3
4,000
3,000
2,000
1,000
900
800
700
600
500
400
300
200
100
10
4
MAXIMUM CLAMPING VOLTAGE
200 TO 430V
N(DC)
RATING
T
A
= -55oC TO 125oC
V430RA22
V390RA22
V270RA22
V240RA22
V200RA22
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RA V aristor Series
Pulse Rating Curves (Continued)
FIGURE 11. SURGE CURRENT RATING CURVES FOR
V82RA8 - V430RA8
FIGURE 12. SURGE CURRENT RATING CURVES FOR
V18RA16 - V68RA16
2,000
1,000
200
100
50
20
10
5
1
2
500
20 100 1,000 10,000
IMPULSE DURATION (µs)
SURGE CURRENT (A)
1
2
10
10
2
10
4
10
5
10
6
V82RA8 - V430RA8
10
3
INDEFINITE
200
100
50
20
10
5
1
2
20 100 1,000 10,000
IMPULSE DURATION (µs)
SURGE CURRENT (A)
1
2
10
10
2
10
4
10
5
10
6
V18RA16 - V68RA16
10
3
INDEFINITE
1,000
500
NOTE:If pulse ratings are exceeded, a shift of V
N(DC)
(at specified current) of more than ±10% could result.This type of shift, which normally results in a decrease of V
N(DC)
,
may result in the device not meeting the original published specifications, but it does not prevent the device from continuing to function, and to provide ample protection.
Low Profile
FIGURE 9. SURGE CURRENT RATING CURVES FOR
V8RA8 - V12RA8
FIGURE 10. SURGE CURRENT RATING CURVES FOR
V18RA8 - V68RA8
20 100 1,000 10,000
IMPULSE DURATION (µs)
SURGE CURRENT (A)
1
10
10
2
V8RA8 - V12RA8
2
10
3
INDEFINITE
10
4
10
5
10
6
200
100
50
20
10
5
2
1
0.5
0.2
20 100 1,000 10,000
IMPULSE DURATION (µs)
SURGE CURRENT (A)
1
10
10
2
V18RA8 - V68RA8
2
10
3
INDEFINITE
500
200
100
50
20
10
2
1
0.5
0.2
10
4
10
5
10
6
5
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2
VARISTOR
PRODUCTS
FIGURE 13. SURGE CURRENT RATING CURVES FOR
V82RA16 - V430RA16
FIGURE 14. SURGE CURRENT RATING CURVES FOR
V24RA22 - V36RA22
5,000
2,000
200
100
50
20
10
5
2
500
20 100 1,000 10,000
IMPULSE DURATION (µs)
SURGE CURRENT (A)
1
2
10
10
4
10
5
10
6
V82RA16 - V430RA16
10
3
INDEFINITE
1,000
10
2
2,000
200
100
50
20
10
5
2
500
20 100 1,000 10,000
IMPULSE DURATION (µs)
SURGE CURRENT (A)
1
2
10
V24RA22 - V36RA22
1,000
10
2
10
3
10
4
10
5
10
6
INDEFINITE
Low Profile
RA V aristor Series
FIGURE 15. SURGE CURRENT RATING CURVES FOR V200RA22 - V430RA22
10,000
2,000
200
100
50
20
10
5
2
500
20 100 1,000 10,000
IMPULSE DURATION (µs)
SURGE CURRENT (A)
1
2
10
4
10
5
10
6
V200RA22 - V430RA22
10
3
INDEFINITE
1,000
10
2
10
5,000
1
Pulse Rating Curves (Continued)
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Low Profile
RA V aristor Series
Mechanical Dimensions
Ordering Information
The RA Series is supplied in bulk pack.
D MAX
Y
n
MIN
A MAX
SEATING
PLANE
5.0 MIN
(0.197 MIN)
Øb
± 0.05
(± 0.002)
E
MAX
e
± 1.0
(± 0.039)
0.5 MAX
OFFSET
(0.020 MAX)
X
SYMBOL
RA8
SERIES
RA16
SERIES
RA22
SERIES
A MAX 8.85
(0.348)
15.1
(0.594)
19.1
(0.752)
D MAX 11.45
(0.450)
19.7
(0.776)
25.5
(1.004)
e5
(0.197)
7.5
(0.295)
7.5
(0.295)
E MAX 5.2
(0.205)
6.3
(0.248)
6.3
(0.248)
n MAX 0.7
(0.027)
0.7
(0.027)
0.7
(0.027)
Øb 0.635
(0.025)
0.81
(0.032)
0.81
(0.032)
WEIGHT
TYP
1 Gram 3.4 Grams 4.4 Grams
X2.2
(0.087)
2.2
(0.087)
4.4
(0.173)
Y 3.1 ± 0.5
(0.122 ± 0.02)
6 ± 1
(0.236 ± 0.04)
8.9 ± 1
(0.35 ± 0.04)
NOTES:
5. Dimensions in mm, dimensions in inches in parentheses.
6. Inches for reference only.
V 200 RA 16
Relative Device Size Indicator
Varistor Technology
Series Designator
Nominal Varistor V oltage
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