Varistor Products
Radial Lead Varistors > C-III series
RoHS
C-III Varistor Series
Description
The C-III Series of Metal-Oxide Varistors (MOVs) are
specifically designed for applications requiring high surge
energy absorption ratings and superior multiple pulse
absorption rating. This is achieved through a special
dielectric material formulation which also results in
higher repetitive surge ratings than other MOV types.
The C-III Series is primarily intended for use in AC
line Transient Voltage Surge Suppressor (TVSS)
product environment and other similar applications
requiring high transient energy and peak current
capability in a relatively small package size.
Agency Approvals
Features
Agency
Agency File Number
E320116
LR91788
116895E
42201-006
• Lead–free and RoHS
compliant option
available. Please see
the device and ratings
specifications table
for more information
• High energy
absorption capability
W
TM
40J to 530J (2ms)
• High pulse life rating
• High peak pulse
current capability
I
TM
3500A to
9000A (8/20μs)
• Wide operating
voltage range
V
M(AC)RMS
130V to 680V
• Available in tape and
reel for automatic
insertion; Also available
with crimped and/or
trimmed lead styles
• No derating up to
85ºC ambient
• The C-III Series is
supplied in 10mm,
14mm and 20mm
disc versions with
various lead options
Absolute Maximum Ratings
• For ratings of individual members of a series, see Device Ratings and Specifications chart
Continuous
Steady State Applied Voltage:
DC Voltage Range (V
M(AC)RMS
)
Transients:
Single-Pulse Peak Current (I
TM
) 8/20μs Wave
(See
Peak Pulse Current Test Waveform)
C-III Series
130 to 660
Units
V
3500 to 9000
40 to 530
-55 to +85
-55 to +125
<0.0
5000
1000
A
J
ºC
ºC
%/ºC
V
MΩ
Single-Pulse Energy Range (W
TM
) 2ms Rectangular Wave
Operating Ambient Temperature Range (T
A
)
Storage Temperature Range (T
STG
)
Temperature Coefficient (a ) of Clamping Voltage (V
C
) at Specified Test Current
Hi-Pot Encapsulation (COATING Isolation Voltage Capability)
COATING Insulation Resistance
V
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.
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
Revision: October 29, 2009
C-III Varistor Series
C–III Series
Varistor Products
Radial Lead Varistors > C-III series
C-III Series Ratings
Lead–free and RoHS Compliant
Models
Part Number
V130LA5CP
V130LA10CP
V130LA20CP
V130LA20CPX325
V140LA5CP
V140LA10CP
V140LA20CP
V140LA20CPX340
V150LA5CP
V150LA10CP
V150LA20CP
V150LA20CPX360
V175LA5CP
V175LA10CP
V175LA20CP
V175LA20CPX425
V230LA10CP
V230LA20CP
V230LA40CP
V230LA40CPX570
V250LA10CP
V250LA20CP
V250LA40CP
V250LA40CPX620
V275LA10CP
V275LA20CP
V275LA40CP
V275LA40CPX680
V300LA10CP
V300LA20CP
V300LA40CP
V300LA40CPX745
V320LA10CP
V320LA20CP
V320LA40CP
V320LA40CPX810
V385LA20CP
V385LA40CP
V420LA20CP
V420LA40CP
V460LA10CP
V460LA20CP
V460LA40CP
V480LA80CP
V510LA80CP
V550LA80CP
V575LA80CP
V625LA80CP
V660LA80CP
V680LA100CP
C-III Varistor Series
Revision: October 29, 2009
Standard Models
Continuous
Maximum V
RMS
V
M(AC)
(V)
130
130
130
130
140
140
140
140
150
150
150
150
175
175
175
175
230
230
230
230
250
250
250
250
275
275
275
275
300
300
300
300
320
320
320
320
385
385
420
420
460
460
460
480
510
550
575
625
660
680
Maximum Ratings (85 °C)
Transient
Peak Current (8/20μs)
Withstanding
Energy (2ms)W
TM
(
(J)
40
80
200
200
45
90
210
210
50
100
215
215
55
110
220
220
60
125
280
280
65
135
300
300
70
145
320
320
75
155
335
335
80
165
345
345
175
370
185
390
95
190
430
420
440
450
460
490
510
520
) I
TM1
1 Pulse
(A)
3500
6000
9000
9000
3500
6000
9000
9000
3500
6000
9000
9000
3500
6000
9000
9000
3500
6000
9000
9000
3500
6000
9000
9000
3500
6000
9000
9000
3500
6000
9000
9000
3500
6000
9000
9000
6000
9000
6000
9000
3500
6000
9000
9000
9000
9000
9000
9000
9000
9000
I
TM2
2 Pulses
(A)
3000
5000
7000
7000
3000
5000
7000
7000
3000
5000
7000
7000
3000
5000
7000
7000
3000
5000
7000
7000
3000
5000
7000
7000
3000
5000
7000
7000
3000
5000
7000
7000
3000
5000
7000
7000
5000
7000
5000
7000
3000
5000
7000
7000
7000
7000
7000
7000
7000
7000
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
Branding
P130L5C
P130L10C
P130L20C
P130X325
P140L5C
P140L10C
P140L20C
P140X340
P150L5C
P150L10C
P150L20C
P150X360
P175L5C
P175L10C
P175L20C
P175X425
P230L10C
P230L20C
P230L40C
P230X570
P250L10C
P250L20C
P250L40C
P250X620
P275L10C
P275L20C
P275L40C
P275X680
P300L10C
P300L20C
P300L40C
P300X745
P320L10C
P320L20C
P320L40C
P320X810
P385L20C
P385L40C
P420L20C
P420L40C
V460L10C
V460L20C
P460L40C
P480L80C
P510L80C
P550L80C
P575L80C
P625L80C
P660L80C
P680L100C
Part Number
V130LA5C
V130LA10C
V130LA20C
V130LA20CX325
V140LA5C
V140LA10C
V140LA20C
V140LA20CX340
V150LA5C
V150LA10C
V150LA20C
V150LA20CX360
V175LA5C
V175LA10C
V175LA20C
V175LA20CX425
V230LA10C
V230LA20C
V230LA40C
V230LA40CX570
V250LA10C
V250LA20C
V250LA40C
V250LA40CX620
V275LA10C
V275LA20C
V275LA40C
V275LA40CX680
V300LA10C
V300LA20C
V300LA40C
V300LA40CX745
V320LA10C
V320LA20C
V320LA40C
V320LA40CX810
V385LA20C
V385LA40C
V420LA20C
V420LA40C
V460LA10C
V460LA20C
V460LA40C
V480LA80C
V510LA80C
V550LA80C
V575LA80C
V625LA80C
V660LA80C
V680LA100C
Branding
130L5C
130L10C
130L20C
130CX325
140L5C
140L10C
140L20C
140CX340
150L5C
150L10C
150L20C
150CX360
175L5C
175L10C
175L20C
175CX425
230L10C
230L20C
230L40C
230X570
250L10C
250L20C
250L40C
250CX620
275L10C
275L20C
275L40C
275CX680
300L10C
300L20C
300L40C
300CX745
320L10C
320L20C
320L40C
320CX810
385L20C
385L40C
420L20C
420L40C
460L10C
460L20C
460L40C
480L80C
510L80C
550L80C
575L80C
625L80C
660L80C
680L100C
Varistor Products
Radial Lead Varistors > C-III series
C-III Series Specifications
Lead–free And
RoHS Compliant
Models
Part Number
V130LA5CP
V130LA10CP
V130LA20CP
V130LA20CPX325
V140LA5CP
V140LA10CP
V140LA20CP
V140LA20CPX340
V150LA5CP
V150LA10CP
V150LA20CP
V150LA20CPX360
V175LA5CP
V175LA10CP
V175LA20CP
V175LA20CPX425
V230LA10CP
V230LA20CP
V230LA40CP
V230LA40CPX570
V250LA10CP
V250LA20CP
V250LA40CP
V250LA40CPX620
V275LA10CP
V275LA20CP
V275LA40CP
V275LA40CPX680
V300LA10CP
V300LA20CP
V300LA40CP
V300LA40CPX745
V320LA10CP
V320LA20CP
V320LA40CP
V320LA40CPX810
V385LA20CP
V385LA40CP
V420LA20CP
V420LA40CP
V460LA10CP
V460LA20CP
V460LA40CP
V480LA80CP
V510LA80CP
V550LA80CP
V575LA80CP
V625LA80CP
V660LA80CP
V680LA100CP
Specifications (25 °C)
Varistor Voltage at 1mA Maximum Clamping
Model Size
Duty Cycle Surge Rating
DC Test Current
Voltage (8/20μs)
Disc
Diameter (mm)
V
N
Max
V
C
I
p
V
N
Min
3kA (8/20μs) 750A (8/20μs)
# Pulses
# Pulses
(V)
(V)
(V)
(A)
10
184
228
340
25
2
100
14
184
228
340
50
40
600
20
184
228
340
100
80
1600
20
184
220
325
100
80
1600
10
198
242
360
25
2
100
14
198
242
360
50
40
600
20
198
242
360
100
80
1600
20
198
230
340
100
80
1600
10
212
268
395
25
2
100
14
212
268
395
50
40
600
20
212
268
395
100
80
1600
20
212
243
360
100
80
1600
10
247
303
455
25
2
100
14
247
303
455
50
40
600
20
247
303
455
100
80
1600
20
247
285
425
100
80
1600
10
324
396
595
25
2
100
14
324
396
595
50
40
600
20
324
396
595
100
80
1600
20
324
384
570
100
80
1600
10
354
429
650
25
2
100
14
354
429
650
50
40
600
20
354
429
650
100
80
600
20
354
413
620
100
80
1600
10
389
473
710
25
2
100
14
389
473
710
50
40
600
20
389
473
710
100
80
1600
20
389
453
680
100
80
1600
10
420
517
775
25
2
100
14
420
517
775
50
40
600
20
420
517
775
100
80
1600
20
420
490
745
100
80
1600
10
462
565
850
25
2
100
14
462
565
850
50
40
600
20
462
565
850
100
80
1600
20
462
540
810
100
80
1600
14
558
682
1025
50
40
600
20
558
682
1025
100
80
1600
14
610
748
1120
50
40
600
20
610
748
1120
100
80
1600
10
640
790
1190
25
2
100
14
640
790
1190
50
40
600
20
640
790
1190
100
80
1600
20
670
825
1240
100
80
1600
20
735
910
1350
100
80
1600
20
780
970
1435
100
80
1600
20
805
1000
1500
100
80
1600
20
900
1100
1725
100
80
1600
20
940
1210
1820
100
80
1600
20
990
1130
1700
100
80
1600
Standard Models
Part Number
V130LA5C
V130LA10C
V130LA20C
V130LA20CX325
V140LA5C
V140LA10C
V140LA20C
V140LA20CX340
V150LA5C
V150LA10C
V150LA20C
V150LA20CX360
V175LA5C
V175LA10C
V175LA20C
V175LA20CX425
V230LA10C
V230LA20C
V230LA40C
V230LA40CX570
V250LA10C
V250LA20C
V250LA40C
V250LA40CX620
V275LA10C
V275LA20C
V275LA40C
V275LA40CX680
V300LA10C
V300LA20C
V300LA40C
V300LA40CX745
V320LA10C
V320LA20C
V320LA40C
V320LA40CX810
V385LA20C
V385LA40C
V420LA20C
V420LA40C
V460L10C
V460L20C
V460LA40C
V480LA80C
V510LA80C
V550LA80C
V575LA80C
V625LA80C
V660LA80C
V680LA100C
1 Average power dissipation of transients not to exceed 0.6W and 1W for model sizes 14mm and 20mm, respectively.
2 7mm parts also available-contact factory for further information
3 For additional or intermediary voltage ratings contact factory
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
Revision: October 29, 2009
C-III Varistor Series
C–III Series
Varistor Products
Radial Lead Varistors > C-III series
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 above. 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.
Peak Pulse Current Test Waveform
PERCENT OF PEAK VALUE
100
90
50
10
O
1
T
T
1
T
2
TIME
Current Energy and Power Derating Curve
Figure 2
100
PERCENT OF RATED VALUE
90
80
70
60
50
40
30
20
10
0
-55
50
60
70
80
90 100 110 120
AMBIENT TEMPERATURE (
o
C)
130
140 150
0
1
= Virtual Origin of Wave
T = Time from 10% to 90% of Peak
T
1
= Rise Time = 1.25 x T
T
2
= Decay Time
Example
- For an 8/20
μs
Current Waveform:
8μs = T
1
= Rise Time
20μs = T
2
= Decay Time
Figure 1
Transient V-I Characteristics Curves
Maximum Clamping Voltage for 10mm Parts
V130LA5C(P) – V460LA10C(P)
10,000
MODEL SIZE = 10mm
Pulse Rating Curves
Repetitive Surge Capability for 10mm Parts
V130LA5C(P)-V320LA10C(P)
10,000
1
2
10
MODEL SIZE = 10mm
V460LA10C(P)
V320LA10C(P)
Peak Rated Surge Current (A)
1,000
10
2
10
3
10
4
Maximum Voltage (V)
V300LA10C(P)
V275LA10C(P)
V250LA10C(P)
1,000
V230LA10C(P)
100
10
V175LA5C(P)
V150LA5C(P)
V140LA5C(P)
V130LA5C(P)
100
0.001
0.01
0.1
1
10
Peak Amperes (A)
100
1000
10000
1
10
100
Surge Impulse Duration (μs)
1,000
10,000
Figure
4
Figure 3
8
C-III Varistor Series
Revision: October 29, 2009
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
Varistor Products
Radial Lead Varistors > C-III series
Transient V-I Characteristics Curves (continued)
Maximum Clamping Voltage for 14mm Parts
V130LA10C(P) – V420LA20C(P)
10,000
Pulse Rating Curves
Repetitive Surge Capability for 14mm Parts
V130LA10C(P)-V420LA20C(P)
10,000
1
MODEL SIZE = 14mm
2
MODEL SIZE = 14mm
10
10
V460LA20C(P)
V420LA20C(P)
V385LA20C(P)
Maximum Voltage (V)
V230LA20C(P)
10
2
Peak Rated Surge Current (A)
1,000
10
3
10
3
V320LA20C(P)
V300LA20C(P)
1,000
V275LA20C(P)
V250LA20C(P)
10
4
0
1
4
100
V175LA10C(P)
V150LA10C(P)
V140LA10C(P)
V130LA10C(P)
100
0.001
0.01
0.1
1
10
10
100
1000
10000
Figure
5
10
8
100
Surge Impulse Duration (μs)
1,000
10,000
Peak Amperes (A)
Figure 6
Maximum Clamping Voltage for 20mm Parts
V130LA5C(P) - V320LA10C (P)
10,000
V680LA100C(P)
V660LA100C(P)
MODEL SIZE = 20mm
V625LA80C(P)
V575LA80C(P)
Maximum Voltage (V)
V510LA80C(P)
V420LA40C(P) V460LA40C(P)
V480LA80C(P)
V385LA40C(P)
1,000
Repetitive Surge Capability for 20mm Parts
V130LA20C(P)-V680LA100C(P)
10,000
1
2
10
MODEL SIZE = 20mm
10
2
10
2
Peak Rated Surge Current (A)
1,000
10
3
10
3
10
4
100
V320LA40C(P)
V230LA40C(P)
V175LA20C(P)
V150LA20C(P)
V140LA20C(P)
V130LA20C(P)
100
10
V300LA40C(P)
V275LA40C(P)
V250LA40C(P)
8
Figure 7
0.001
0.01
0.1
1
10
100
1000
10000
10
100
Peak Amperes (A)
Figure 8
1,000
Surge Impulse Duration (μs)
10,000
Maximum Clamping Voltage for Low Clamping Voltage Parts
V130LA20CX325(P) - V300LA40CX245 (P)
10,000
V300LA40CX810(P)
Maximum Voltage (V)
V300LA40CX745(P)
V275LA40CX680(P)
V250LA40CX620(P)
1,000
V230LA40CX570(P)
V175LA20CX425(P)
V150LA20CX360(P)
V140LA20CX340(P)
V130LA20CX325(P)
100
Figure 9
0.001
0.01
0.1
1
10
Peak Amperes (A)
100
1000
10000
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
Revision: October 29, 2009
C-III Varistor Series
C–III Series
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