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.
Series LA Varistors are certified by VDE under License Number 116895E.
Series LA Varistors are listed under UL file #E75961 and E56529 as a recognized component.
Series LA Varistors are listed under CSA file #LR91788 as a recognized component.
Device Ratings and Specifications
MAXIMUM RATING (85
o
C)
CONTINUOUS
TRANSIENT
ENERGY
10 x 1000µs
W
TM
(J)
11
11
20
38
70
70
12
22
42
75
13
13
25
45
80
80
15
30
55
90
20
35
70
122
PEAK
CURRENT
8 x 20µs
I
TM
(A)
1200
1200
2500
4500
6500
6500
1200
2500
4500
6500
1200
1200
2500
4500
6500
6500
1200
2500
4500
6500
1200
2500
4500
6500
184
184
184
184
184
184
198
198
198
198
212
212
212
212
212
212
247
247
247
247
324
324
324
324
VARISTOR VOLT-
AGE AT 1mA DC
TEST CURRENT
V
NOM
MIN
(V)
255
228
228
228
228
220
242
242
242
242
284
268
268
268
268
243
303
303
303
303
396
396
396
396
V
NOM
MAX
SPECIFICATIONS (25
o
C)
MAXIMUM
CLAMPING
VOLTAGE
8 x 20µs
V
C
(V)
390
340
340
340
340
325
360
360
360
340
430
395
395
395
395
360
455
455
455
455
595
595
595
595
I
PK
(A)
10
10
25
50
100
100
10
25
50
100
10
10
25
50
100
100
10
25
50
100
10
25
50
100
TYPICAL
CAPACI-
TANCE
f = 1MHz
C
(pF)
180
180
450
1000
1900
1900
160
400
900
1750
150
150
360
800
1600
1600
130
350
700
1400
100
250
550
1100
PART
NUMBER
V130LA1
V130LA2
V130LA5
V130LA10A
V130LA20A
V130LA20B
V140LA2
V140LA5
V140LA10A
V140LA20A
V150LA1
V150LA2
V150LA5
V150LA10A
V150LA20A
V150LA20B
V175LA2
V175LA5
V175LA10A
V175LA20A
V230LA4
V230LA10
V230LA20A
V230LA40A
MODEL
SIZE
DISC
DIA.
(mm)
7
7
10
14
20
20
7
10
14
20
7
7
10
14
20
20
7
10
14
20
7
10
14
20
DEVICE
MODEL
NUMBER
BRAND-
ING
1301
1302
1305
130L10
130L20
130L20B
1402
1405
140L10
140L20
1501
1502
1505
150L10
150L20
150L20B
1752
1755
175L10
175L20
2304
230L
230L20
230L40
V
RMS
V
M(AC)
(V)
130
130
130
130
130
130
140
140
140
140
150
150
150
150
150
150
175
175
175
175
230
230
230
230
V
DC
V
M(DC)
(V)
175
175
175
175
175
175
180
180
180
180
200
200
200
200
200
200
225
225
225
225
300
300
300
300
4-25
LA Series
Device Ratings and Specifications
(Continued)
MAXIMUM RATING (85
o
C)
CONTINUOUS
TRANSIENT
ENERGY
10 x 1000µs
W
TM
(J)
21
21
40
72
130
130
23
23
45
75
140
140
25
25
46
77
165
25
48
80
150
27
51
85
160
30
55
90
160
37
35
60
105
180
63
110
190
65
120
220
67
125
230
PEAK
CURRENT
8 x 20µs
I
TM
(A)
1200
1200
2500
4500
6500
6500
1200
1200
2500
4500
6500
6500
1200
1200
2500
4500
6500
1200
2500
4500
6500
1200
2500
4500
6500
1200
2500
4500
6500
1200
1200
2500
4500
6500
2500
4500
6500
2500
4500
6500
2500
4500
6500
354
354
354
354
354
354
389
389
389
389
389
389
420
420
420
420
420
462
462
462
462
558
558
558
558
610
610
610
610
702
670
670
670
670
735
735
735
805
805
805
940
940
940
VARISTOR VOLT-
AGE AT 1mA DC
TEST CURRENT
V
NOM
MIN
(V)
473
429
429
429
429
413
515
473
473
473
473
453
565
517
517
517
517
565
565
565
540
682
682
682
682
748
748
748
720
858
825
825
825
790
910
910
860
1000
1000
960
1210
1210
1100
V
NOM
MAX
SPECIFICATIONS (25
o
C)
MAXIMUM
CLAMPING
VOLTAGE
8 x 20µs
V
C
(V)
730
650
650
650
650
620
775
710
710
710
710
680
870
775
775
775
775
850
850
850
810
1025
1025
1025
1025
1120
1120
1120
1060
1130
1240
1240
1240
1160
1350
1350
1280
1500
1500
1410
1820
1820
1650
I
PK
(A)
10
10
25
50
100
100
10
10
25
50
100
100
10
10
25
50
100
10
25
50
100
10
25
50
100
10
25
50
100
10
10
25
50
100
25
50
100
25
50
100
25
50
100
TYPICAL
CAPACI-
TANCE
f = 1MHz
C
(pF)
90
90
220
500
1000
1000
80
80
200
450
900
900
70
70
180
400
800
65
170
380
750
60
160
360
700
55
140
300
600
55
270
120
270
550
100
250
500
90
220
450
80
210
425
PART
NUMBER
V250LA2
V250LA4
V250LA10
V250LA20A
V250LA40A
V250LA40B
V275LA2
V275LA4
V275LA10
V275LA20A
V275LA40A
V275LA40B
V300LA2
V300LA4
V300LA10
V300LA20A
V300LA40A
V320LA7
V320LA10
V320LA20A
V320LA40B
V385LA7
V385LA10
V385LA20A
V385LA40B
V420LA7
V420LA10
V420LA20A
V420LA40B
V460LA7
V480LA7
V480LA10
V480LA40A
V480LA80B
V510LA10
V510LA40A
V510LA80B
V575LA10
V575LA40A
V575LA80B
V625LA10
V625LA40A
V625LA80B
MODEL
SIZE
DISC
DIA.
(mm)
7
7
10
14
20
20
7
7
10
14
20
20
7
7
10
14
20
7
10
14
20
7
10
14
20
7
10
14
20
7
7
10
14
20
10
14
20
10
14
20
10
14
20
DEVICE
MODEL
NUMBER
BRAND-
ING
2502
2504
250L
250L20
250L40
250L40B
2752
2754
275L
275L20
275L40
275L40B
3002
3004
300L
300L20
300L40
3207
320L
320L20
320L40
3857
385L
385L20
385L40
4207
420L
420L20
420L40
4607
4807
480L
480L40
480L80
510L
510L40
510L80
575L
575L40
575L80
625L
625L40
625L80
V
RMS
V
M(AC)
(V)
250
250
250
250
250
250
275
275
275
275
275
275
300
300
300
300
300
320
320
320
320
385
385
385
385
420
420
420
420
460
480
480
480
480
510
510
510
575
575
575
625
625
625
V
DC
V
M(DC)
(V)
330
330
330
330
330
330
369
369
369
369
369
369
405
405
405
405
405
420
420
420
420
505
505
505
505
560
560
560
560
615
640
640
640
640
675
675
675
730
730
730
825
825
825
4-26
LA Series
Device Ratings and Specifications
(Continued)
MAXIMUM RATING (85
o
C)
CONTINUOUS
TRANSIENT
ENERGY
10 x 1000µs
W
TM
(J)
70
140
250
220
360
PEAK
CURRENT
8 x 20µs
I
TM
(A)
2500
4500
6500
4500
6500
940
940
940
1425
1425
VARISTOR VOLT-
AGE AT 1mA DC
TEST CURRENT
V
NOM
MIN
(V)
1210
1210
1100
1800
1600
V
NOM
MAX
SPECIFICATIONS (25
o
C)
MAXIMUM
CLAMPING
VOLTAGE
8 x 20µs
V
C
(V)
1820
1820
1650
2700
2420
I
PK
(A)
50
50
100
50
100
TYPICAL
CAPACI-
TANCE
f = 1MHz
C
(pF)
70
200
400
130
250
PART
NUMBER
V660LA10
V660LA50A
V660LA100B
V1000LA80A
V1000LA160B
MODEL
SIZE
DISC
DIA.
(mm)
10
14
20
14
20
DEVICE
MODEL
NUMBER
BRAND-
ING
660L
660L50
660L100
1000L80
1000L160
V
RMS
V
M(AC)
(V)
660
660
660
1000
1000
V
DC
V
M(DC)
(V)
850
850
850
1200
1200
NOTE: Average power dissipation of transients not to exceed 0.25W, 0.4W, 0.6W or 1W for model sizes 7mm, 10mm, 14mm and 20mm, respectively.
Power Dissipation Ratings
Should transients occur in rapid succession, the average
power dissipation is 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. The operating values of a MOV need to be derated at
high temperatures as shown in Figure 1. Because varistors
only dissipate a relatively small amount of average power
they are not suitable for repetitive applications that involve
substantial amounts of average power dissipation.
1.
100
PERCENT OF RATED VALUE
90
80
70
60
50
40
30
20
10
0
-55
50
60
70
80
90
100
110
120
130
140 150
AMBIENT TEMPERATURE (
o
C)
FIGURE 1. CURRENT, ENERGY AND POWER DERATING
CURVE
PERCENT OF PEAK VALUE
100
90
50
O
1
= 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
10
O
1
T
T
1
T
2
TIME
FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM
4-27
LA Series
Transient V-I Characteristics Curves
6,000
5,000
4,000
MAXIMUM PEAK VOLTS (V)
3,000
2,000
V275LA2
V250LA2
1,000
900
800
700
600
500
400
300
V130LA1
200
10
-3
10
-2
10
-1
10
0
10
1
10
2
PEAK AMPERES (A)
10
3
10
4
100
10
-3
10
-2
10
-1
V300LA2
4,000
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 7mm
130 TO 300V
M(AC)
RATING
T
A
= -55
o
C TO 85
o
C
3,000
MAXIMUM PEAK VOLTS (V)
2,000
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 7mm
130 TO 300V
M(AC)
RATING
T
A
= -55
o
C TO 85
o
C
V300LA4
V275LA4
V250LA4
V230LA4
1,000
900
800
700
600
500
400
300
200
V175LA2
V150LA2
V140LA2
V130LA2
10
0
10
1
10
2
PEAK AMPERES (A)
10
3
10
4
V150LA1
FIGURE 3. CLAMPING VOLTAGE FOR V130LA1 - V300LA2
FIGURE 4. CLAMPING VOLTAGE FOR V130LA2 - V300LA4
MAXIMUM PEAK VOLTS (V)
3,000
MAXIMUM PEAK VOLTS (V)
MAXIMUM CLAMPING VOLTAGE
5,000 MODEL SIZE 7mm
320 TO 480V
M(AC)
RATING
T
A
= -55
o
C TO 85
o
C
6,000
5,000
4,000
3,000
2,000
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 10mm
130 TO 420V
M(AC)
RATING
T
A
= -55
o
C TO 85
o
C
V275LA10
V250LA10
V230LA10
V420LA10
2,000
V460LA7
V480LA7
1,000
V420LA7
V385LA7
V320LA7
500
10
-3
10
-2
10
-1
10
0
10
1
PEAK AMPERES (A)
10
2
10
3
10
4
1,000
900
800
700
600
500
400
300
V175LA5
V150LA5
V140LA5
V130LA5
10
-2
10
-1
10
0
10
1
10
2
PEAK AMPERES (A)
10
3
10
4
200
10
-3
FIGURE 5. CLAMPING VOLTAGE FOR V320LA7 - V480LA7
FIGURE 6. CLAMPING VOLTAGE FOR V130LA5 - V420LA10
MAXIMUM PEAK VOLTS (V)
3,000
2,000
V300LA10
V320LA10
V625LA10
V660LA10
MAXIMUM PEAK VOLTS (V)
MAXIMUM CLAMPING VOLTAGE
5,000 MODEL SIZE 10mm
300 TO 660V
M(AC)
RATING
T
A
= -55
o
C TO 85
o
C
6,000
5,000
4,000
3,000
2,000
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 14mm
130 TO 320V
M(AC)
RATING
T
A
= -55
o
C TO 85
o
C
V275LA20A
V250LA20A
V230LA20A
V300LA20A
V320LA20A
1,000
900
800
700
600
500
400
300
200
10
-3
1,000
V575LA10
V510LA10
V480LA10
V385LA10
10
-3
10
-2
10
-1
10
0
10
1
PEAK AMPERES (A)
10
2
10
3
10
4
V175LA10A
V150LA10A
V140LA10A
V130LA10A
10
-2
10
-1
10
0
10
1
10
2
PEAK AMPERES (A)
10
3
10
4
500
FIGURE 7. CLAMPING VOLTAGE FOR V300LA10 - V660LA10
FIGURE 8. CLAMPING VOLTAGE FOR V130LA10A - V320LA20A
