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 File Number
t -FBEoGSFFBOE3P)4
compliant option
available. Please see
the device and ratings
specifications table
for more information
E75961
-3
116895E
t )Jgh energy
absorption capability
WTM 40J to 530J (2ms)
42201-006
t Wide operating
voltage range
V. "$
3.4 130V to 680V
t "WBJMBCMFJOUBQFBOE
reel for automatic
insertion; Also available
with crimped and/or
trimmed lead styles
t )JHIQVMTFMJGFSBUJOH
t /PEFSBUJOHVQUP
85ºC ambient
t )JHIQFBLQVMTF
current capability
ITM 3500A to
9000A (8/20μs)
t The C-III Series is
supplied in 10mm,
14mm and 20mm
disc versions with
various lead options
Absolute Maximum Ratings
t'PSSBUJOHTPGJOEJWJEVBMNFNCFSTPGBTFSJFT
TFF%FWJDF3BUJOHTBOE4QFDJmDBUJPOTDIBSU
Continuous
C-III Series
Units
130 to 660
V
3500 to 9000
A
Steady State Applied Voltage:
%$7PMUBHF3BOHF 7. "$
3.4)
Transients:
Single-Pulse Peak Current (ITM) 8/20μs Wave
(See Peak Pulse Current Test Waveform)
4JOHMF1VMTF&OFSHZ3BOHF 8TM
NT3FDUBOHVMBS8BWF
40 to 530
J
0QFSBUJOH"NCJFOU5FNQFSBUVSF3BOHF 5A)
-55 to +85
ºC
4UPSBHF5FNQFSBUVSF3BOHF 5STG)
-55 to +125
ºC
Temperature Coefficient (aV) of Clamping Voltage (VC) at Specified Test Current
C-III series
C-III Series Ratings
Lead–free and RoHS Compliant
Models
Part Number
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
C-III Varistor Series
Branding
1-$
1-$
1-$
19
1-$
1-$
1-$
19
1-$
1-$
1-$
19
1-$
1-$
1-$
19
1-$
1-$
1-$
19
1-$
1-$
1-$
19
1-$
1-$
1-$
19
1-$
1-$
1-$
19
1-$
1-$
1-$
19
1-$
1-$
1-$
1-$
7-$
7-$
1-$
1-$
1-$
1-$
1-$
1-$
1-$
1-$
Standard Models
Part Number
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$
7-"$
7-"$
7-"$
7-"$
7-"$
7-"$
7-"$
7-"$
7-"$
7-"$
Continuous
Maximum V3.4
VM(AC)
Branding
(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
-$
-$
-$
$9
-$
-$
-$
$9
-$
-$
-$
$9
-$
-$
-$
$9
-$
-$
-$
9
-$
-$
-$
$9
-$
-$
-$
$9
-$
-$
-$
$9
-$
-$
-$
$9
-$
-$
-$
-$
-$
-$
-$
-$
-$
-$
-$
-$
-$
-$
102
Revision: June 3, 2009
Maximum Ratings (85 °C)
Transient
Peak Current (8/20μs)
Withstanding
Energy (2ms)WTM (
(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
) ITM1 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
ITM2 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.
Varistor Products
Radial Lead Varistors > C-III series
Lead–free And
RoHS Compliant
Models
Standard Models
Part Number
Part Number
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$19
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$1
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$9
7-"$
7-"$
7-"$
7-"$
7-$
7-$
7-"$
7-"$
7-"$
7-"$
7-"$
7-"$
7-"$
7-"$
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/ Max
VC
Ip
V/ 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
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
'PSBEEJUJPOBMPSJOUFSNFEJBSZWPMUBHFSBUJOHTDPOUBDUGBDUPSZ
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
103
Revision: June 3, 2009
C-III Varistor Series
C–III Series
C-III Series Specifications
Varistor Products
Radial Lead Varistors > C-III series
Peak Pulse Current Test Waveform
Power Dissipation Ratings
PERCENT OF PEAK VALUE
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
%FWJDF3BUJOHTBOE4QFDJmDBUJPOT5BCMFGPSUIFTQFDJmD
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.
100
90
50
10
O1
TIME
T1
Current Energy and Power Derating Curve
Figure 2
T2
01 = Virtual Origin of Wave
T = Time from 10% to 90% of Peak
T1 3JTF5JNF Y5
T2 %FDBZ5JNF
Example 'PSBOμs Current Waveform:
8μs = T1 3JTF5JNF
20μs = T2 %FDBZ5JNF
100
PERCENT OF RATED VALUE
T
90
80
70
60
50
40
30
20
10
0
-55
50
60
Figure 1
70
80
90 100 110 120
AMBIENT TEMPERATURE ( oC)
130
140 150
Transient V-I Characteristics Curves
Pulse Rating Curves
Maximum Clamping Voltage for 10mm Parts
Repetitive Surge Capability for 10mm Parts
V130LA5C(P)-V320LA10C(P)
V130LA5C(P) – V460LA10C(P)
10,000
10,000
MODEL SIZE = 10mm
1
2
10
V460LA10C(P)
Maximum Voltage (V)
V300LA10C(P)
V275LA10C(P)
V250LA10C(P)
1,000
V230LA10C(P)
10 2
10 3
10 4
100
8
Peak Rated Surge Current (A)
1,000
V320LA10C(P)
MODEL SIZE = 10mm
10
V175LA5C(P)
V150LA5C(P)
V140LA5C(P)
1
V130LA5C(P)
10
100
100
1,000
10,000
Surge Impulse Duration (μs)
0.001
Figure 3
C-III Varistor Series
0.01
0.1
1
1.0
Peak Amperes (A)
100
1000
Figure 4
10000
104
Revision: June 3, 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)
Pulse Rating Curves
Maximum Clamping Voltage for 14mm Parts
Repetitive Surge Capability for 14mm Parts
V130LA10C(P) – V420LA20C(P)
V130LA10C(P)-V420LA20C(P)
10,000
10,000
1
MODEL SIZE = 14mm
2
10
10
MODEL SIZE = 14mm
V460LA20C(P)
10 2
V230LA20C(P)
V320LA20C(P)
V300LA20C(P)
V275LA20C(P)
1,000
V250LA20C(P)
1,000
3
10
10
3
10140
100
4
8
Peak Rated Surge Current (A)
Maximum Voltage (V)
V420LA20C(P)
V385LA20C(P)
V175LA10C(P)
V150LA10C(P)
V140LA10C(P)
V130LA10C(P)
100
10
0.01
0.1
1
100
1.0
10000
1000
10
100
Figure 6
Peak Amperes (A)
Maximum Clamping Voltage for 20mm Parts
1,000
10,000
Surge Impulse Duration (μs)
Repetitive Surge Capability for 20mm Parts
V130LA20C(P)-V680LA100C(P)
V130LA5C(P) - V320LA10C (P)
10,000
V680LA100C(P)
V660LA100C(P)
10,000
1
C–III Series
0.001
Figure 5
2
10
V625LA80C(P)
MODEL SIZE = 20mm
V510LA80C(P)
V420LA40C(P) V460LA40C(P)
V480LA80C(P)
V385LA40C(P)
1,000
10 3
1,000
10 3
10 4
100
8
Peak Rated Surge Current (A)
Maximum Voltage (V)
MODEL SIZE = 20mm
10 2
10 2
V575LA80C(P)
V320LA40C(P)
V300LA40C(P)
V275LA40C(P)
V250LA40C(P)
V230LA40C(P)
V175LA20C(P)
V140LA20C(P)
V130LA20C(P)
V150LA20C(P)
10
100
Figure 7
0.001
0.01
0.1
1
100
1.0
1000
10
10000
Figure 8
Peak Amperes (A)
100
1,000
Surge Impulse Duration (μs)
10,000
Maximum Clamping Voltage for Low Clamping Voltage Parts
V130LA20CX325(P) - V300LA40CX245 (P)
10,000
Maximum Voltage (V)
V300LA40CX810(P)
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
1.0
Peak Amperes (A)
100
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
1000
10000
105
Revision: June 3, 2009
C-III Varistor Series
Varistor Products
Radial Lead Varistors > C-III series
Wave Solder Profile
Lead–free Profile
Non Lead–free Profile
300
300
250
TEMPERATURE (ºC)
250
TEMPERATURE (ºC)
Maximum Wave 260C
Maximum Wave 240C
200
150
100
200
150
100
50
50
0
0
0
0.5
1
Figure 10
1.5
2
2.5
3
3.5
0
4
0.5
Figure 11
TIME(MINUTES)
1
1.5
2
2.5
3
3.5
4
TIME(MINUTES)
Physical Specifications
Environmental Specifications
Lead Material
5JOo$PBUFE$PQQFS8JSF
Operating/Storage
Temperature
-55°C to +85°C/-55°C to +125°C
Soldering
Characteristics
4PMEFSBCJMJUZQFS.*-o45%o
Method 208E
Humidity Aging
¡$
3)
IPVST
+/-10% typical voltage change
Insulating Material
Cured, flame retardant epoxy polymer
NFFUT6-7oSFRVJSFNFOUT
Device Labeling
.BSLFEXJUI-'
WPMUBHF
6-$4"-PHPT
and date code
+85°C to -40°C 10 times
+/-10% typical voltage change
Solvent Resistance
.*-o45%o
.FUIPE'
Moisture Sensitivity
-FWFM
+o45%o$
C-III Series Varistors for Hi-Temperature Operating Conditions:
t 1IFOPMJD$PBUFE$***4FSJFTEFWJDFTBSFBWBJMBCMFXJUIJNQSPWFENBYJNVNPQFSBUJOHNBYJNVNUFNQFSBUVSF$
t 5IFTFEFWJDFTBMTPIBWFJNQSPWFEUFNQFSBUVSFDZDMJOHQFSGPSNBODFDBQBCJMJUZ
t 3BUJOHTBOE4QFDJmDBUJPOTBSFBTQFSTUBOEBSE$***4FSJFTFYDFQU)Jo1PU
Encapsulation (Isolation Voltage Capability)=500V.
t 5PPSEFSBEE9UPQBSUOVNCFS FH7-"$9
t 5IFTFEFWJDFTBSFOPU6-
$4"
7%&PS$&$$DFSUJmFE
t $POUBDUGBDUPSZGPSGVSUIFSEFUBJMT
C-III Varistor Series
106
Revision: June 3, 2009
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
Varistor Products
Radial Lead Varistors > C-III series
AC Bias Reliability
The C-III Series MOVs were designed for use on the AC
line. The varistor is connected across the AC line and is
biased with a constant amplitude sinusoidal voltage. It
should be noted that the definition of failure is a shift in the
nominal varistor voltage (V/) exceeding +/-10%. Although
this type of varistor is still functioning normally after this
magnitude of shift, devices at the lower extremities of V/
tolerance will begin to dissipate more power.
High Temperature Operating Life 125ºC for 1000 Hours
at Rated Bias
300
VNOM AT 1mA (V)
V130LA20C
Because of this possibility, an extensive series of
statistically designed tests were performed to determine
the reliability of the C-III type of varistor under AC bias
combined with high levels of temperature stress. To
date, this test has generated over 50,000 device hours of
operation at a temperature of 125ºC, although only rated at
85ºC. Changes in the nominal varistor voltage, measured at
1mA, of less than 2% have been recorded, as displayed in
the diagram at right.
250
200
150
100
0
100
200
300
Figure 12
400 500 600 700
TIME (HOURS)
800
900 1000 1100
Transient Surge Current/Energy Transient Capability
The transient surge rating serves as an excellent figure
of merit for the C-III varistor. This inherent surge handling
capability is one of the C-III varistor’s best features.
The enhanced surge absorption capability results from
improved process uniformity and enhanced construction.
The homogeneity of the raw material powder and
improved control over the sintering and assembly
processes are contributing factors to this improvement.
In the low power AC mains environment, industry
TUBOEBSET 6-
*&$
/&."BOE*&&&
BMMTVHHFTUUIBUUIF
worst case surge occurrence will be 3kA. Such a transient
event may occur up to five times over the equipment life
time (approximately 10 years). While the occurences of
five 3kA transients is the required capability, the rated,
repetitive surge current for the C-III Series is 80 pulses
for the 20mm units and 40 pulses for the 14mm Series.
500
V130LA20C
3kA (8/20μs)
450
400
350
(RATED FOR 80 PULSES)
300
0
10
20
30
Figure 13
CLAMPING VOLTAGE AT 750A
As a measure of the inherent device capability, samples
PGUIFNN7-"$EFWJDFTXFSFTVCKFDUFEUPB
worst case repetitive transient surges test. After 100
pulses, each of 3kA, there was negligible change in
the device characteristics. Changes in the clamping
voltage, measured at 100A, of less than 3% were
recorded, as shown in the upper diagram at right.
4BNQMFTPGUIFNN4FSJFT7-"$XFSFTVCKFDUFE
to repetitive surge occurrences of 750A. Again, there was
negligible changes in any of the device characteristics after
2000 pulses, as shown in the lower diagram at right.
C–III Series
CLAMPING VOLTAGE AT 3kA
Typical Repetitive Surge Current Capability of
C-III Series MOVs
40 50 60 70 80
NUMBER OF SURGES
600
90 100 110 120
V175LA20C
750A (8/20μs)
550
500
450
400
350
300
(RATED FOR 1600 PULSES)
0
Figure 14
200
400
600
800
1000
1200 1400
1600
2000
NUMBER OF SURGES
In both cases the inherent device capability is far
in excess of the expected worst case scenario.
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
107
Revision: June 3, 2009
C-III Varistor Series
Varistor Products
Radial Lead Varistors > C-III series
Product Dimensions (mm)
ØD
A
*SEATING
ATRIM
PLANE
LTRIM
25.4
(1.00)
Øb
CRIMPED AND
LEAD
CRIMPED
ANDTRIMMED
TRIMMED
LEADS
3BEJBMMFBEUZQFTDBOCFTVQQMJFEXJUIDPNCJOBUJPOQSFGPSNFE
crimp and trimmed leads. This option is supplied to the
dimensions shown below.
e
e1
E
*Seating plane interpretation per IEC-60717
10mm Size
14mm Size
20mm Size
Dimension
V3.4 Voltage
Model
Min.
Max.
Min.
Max.
Min.
Max.
A
All
12.0 (0.472)
16.0 (0.630)
13.5 (0.531)
20.0 (0.787)
17.5 (0.689)
28.0 (1.102)
ØD
All
10.0 (0.394)
12.5 (0.492)
13.5 (0.531)
17.0 (0.669)
17.5 (0.689)
23.0 (0.906)
e
All
6.5 (0.256)
8.5 (0.335)
6.5 (0.256)
8.5 (0.335)
6.5 (0.256)
8.5 (0.335)
2.5 (0.098)
5.5 (0.216)
2.5 (0.098)
5.5 (0.216)
2.5 (0.098)
5.5 (0.216)
4.5 (0.177)
9.0 (0.354)
4.5 (0.177)
9.0 (0.354)
o
7.3 (0.287)
o
0.76 (0.030)
0.86 (0.034)
0.76 (0.030)
0.86 (0.034)
e1
E
Øb
130 - 320
>320
130 - 320
>320
130 - 320
>660
7.3 (0.287)
11.0 (0.433)
o
7.3 (0.287)
11.0 (0.433)
0.76 (0.030)
0.86 (0.034)
0.95 (0.037)
1.05 (0.041)
ATRIM
All
o
19.5 (0.768)
o
23.5 (0.925)
o
30.0 (1.18)
LTRIM
All
2.41 (0.095)
4.69 (0.185)
2.41 (0.095)
4.69 (0.185)
2.41 (0.095)
4.69 (0.185)
%JNFOTJPOTBSFJONJMMJNFUFST JODIFT
1. 10mm lead spacing also available. See additional lead style options.
2. 7mm and 12mm devices also available upon request. Contact factory for details.
C-III Varistor Series
108
Revision: June 3, 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
Tape and Reel Specifications
t BWBJMBCMFGPSWPMUBHFSBUJOHTVQUP7POMZ
Symbol
$3*.1&%-&"%4-5
P
E
DP
DP
DH
DH
C
SEATING
PLANE
H1
W0 W2 W1
H0
b
W
D0
P1
t
F
P
P2
Pitch of Component
P0
'FFE)PMF1JUDI
12.7 -/+ 0.2
P1
'FFE)PMF$FOUFSUP1JUDI
8.85 -/+ 0.8
P2
)PMF$FOUFSUP$PNQPOFOU
Center
12.7 -/+ 0.7
F
-FBEUP-FBE%JTUBODF
7.50 -/+ 0.8
h
Component Alignment
W
Tape Width
W0
)PME%PXO5BQF8JEUI
W1
)PMF1PTJUJPO
W2
)PME%PXO5BQF1PTJUJPO
25.4 -/+1.0
2.00 Max
18.25 -/+ 0.75
12.0 -/+ 0.3
9.125 -/+ 0.625
0.5 Max
H
)FJHIU'SPN5BQF$FOUFS5P
Component Base
19.0 -/+1.0
H0
4FBUJOH1MBOF)FJHIU
16.0 -/+ 0.5
H1
$PNQPOFOU)FJHIU
D0
'FFE)PMF%JBNFUFS
4.0 -/+ 0.2
0.7 -/+ 0.2
36 Max
40 Max
t
Total Tape Thickness
p
Component Alignment
3° Max
U
Under crimp Width
8.0 Max
E
DP
Model Size
14mm 20mm
P
P1
453"*()5-&"%4-4
10mm
46.5
Max
DP
DH
DH
H1
W0 W2 W1
H
b
W
D0
P1
t
F
P0
6/%&3$3*.1&%-&"%4-6
P
P2
E
DP
DP
DH
DH
U
H1
W0 W2 W1
Ho
b
W
D0
P1
F
t
P0
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
109
Revision: June 3, 2009
C-III Varistor Series
C–III Series
P2
Description
Varistor Products
Radial Lead Varistors > C-III series
Part Numbering System
BASE PART CODES
(See Ratings & Specifications tables and notes below)
V XXXX LA XX C
P
OPTION CODES
(See notes below)
XXXXX
See OPTIONS CODES notes below
For “VARISTOR”
V M(AC)
(Three or four digits -- 130V to 1,000V)
P: LEAD-FREE AND RoHS
COMPLIANT OPTION
SERIES + PACKAGING / LEAD STYLE
DESIGNATOR
(See BASE PART CODES notes below)
LA = Bulk Pack / Straight Leads (standard)
LC = Bulk Pack / Crimped and Trimmed Leads
LS = Tape and Reel / Straight Leads
LT = Tape and Reel / Crimped Leads
LU = Tape and Reel / Under-Crimped Leads
RELATIVE ENERGY INDICATOR
(One or Two Digits)
'PSTUBOEBSEQBSUT
VTFUIFBASE PART designator only.
'PSQBSUTXJUIOPOTUBOEBSEPQUJPOT TVDIBTBEEJUJPOBMGPSN
QBDLBHJOH
and lead space options), use BASE PART + OPTION CODE.
OPTION CODEJUFNTBSFTVCKFDUUPBWBJMBCJMJUZBOENJOJNVNPSEFS
SFRVJSFNFOUT1MFBTFDPOUBDUB-JUUFMGVTFQSPEVDUTSFQSFTFOUBUJWFGPS
additional information or questions
C-III SERIES DESIGNATOR
Ordering Notes:
BASE PART CODES:
OPTION CODES:
Series + Packaging / Lead Style Designators:
X10:..-&"%41"$*/(015*0/
Ordering examples:
'PS
NNMFBETQBDJOH BWBJMBCMFPONN
diameter models only), append standard model
#"4&1"35OVNCFSXJUI9&YBNQMF
Straight
Lead
Bulk Pack
(standard)
Straight
Lead
Tape &
Reel
Crimped
Lead
Tape &
Reel
V130LA20C
V130LS20C
V130LT20C
Crimped &
UnderTrimmed Crimp Lead
Lead
Tape &
Bulk Pack
Reel
V130LC20C
Standard Model
Order As
7-"$
7-"$X10
V130LU20C
X2855:/JDLFM#BSSJFS$0"5&%8*3&015*0/
$SJNQFEMFBETBSFTUBOEBSEPO-"4FSJFTWBSJTUPSTTVQQMJFEJO
UBQFBOESFFM
EFOPUFEXJUI-5
"MMTUBOEBSEQBSUTVTF5JOo$PBUFE$PQQFSXJSF/JDLFM
Barrier Coated wire is available as an option, consisting
PG$PQQFSXJSFXJUIBnBTIJOHPG/JDLFMGPMMPXFECZ
a top coating of Tin. To order append standard model
#"4&1"35OVNCFSXJUI9&YBNQMF
-$TUZMFJTTVQQMJFEJOCVMLPOMZ
-6TUZMFJTTVQQMJFEJOUBQFSFFMPOMZ
'PSDSJNQFEMFBETXJUIPVUUSJNNJOHBOEBOZWBSJUJPOTPUIFSUIBO
UIBUEFTDSJCFEBCPWF
QMFBTFDPOUBDU-JUUFMGVTF
Standard Model
Order As
7-"$
7-"$X2855
Lead–free / RoHS Designator:
-JUUFMGVTF$***4FSJFTWBSJTUPSTBSFTIJQQFETUBOEBSEJOCVMLQBDL
with straight leads and lead spacing outlined in the Package
%JNFOTJPOTTFDUJPOPGUIJTEBUBTIFFU$POUBDUB-JUUFMGVTF
representative to discuss non-standard options.
'PS-FBEoGSFFBOE3P)4DPNQMJBOUQBSUTBEE1BGUFSUIFBASE
PART number and before any other OPTION CODE:
Standard Model
Order As
7-"$
7-"$P
TAPE & REEL QUANTITIES:
Device Size
Voltage
"--
≤ 275V
≥ 275V
≤ 275V
≥ 275V
Standard Model
with Option
Order As
10mm
7-"$9
7-"$P9
14mm
20mm
C-III Varistor Series
110
Revision: June 3, 2009
"T" Reel
500
500
400
500
400
Quantity Per Reel
"S" Reel
"U"Reel
500
500
500
500
400
400
500
500
400
400
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Littelfuse:
V320LS40CP V150LT20AP V175LT20CP V130LT20CP V150LT20BP V320LT20CP V300LT20CP V150LT10AP
V175LT10CP V130LT1P V275LS40CP V575LA80C V150LC10CP V150LC10AP V320LS20CP V150LS2P
V150LS5P V150LC5P V150LS20CP V150LS20AP V150LC2P V150LS20BP V230LA40CPX570 V130LA10C
V150LC20A V150LT10A V320LT20C V150LS20B V550LA80C V250LA40CP V150LS20A V230LA40CP
V320LS40C V150LT5 V150LU2 V320LA40CP V150LXR100 V140LA10C V300LA40CP V300LT20C V300LA20CP
V150LA20CP V150LTX10A V320LS20C V300LA20C V150LT20B V150LC5 V150LT20A V230LA20C
V150LXR1245 V510LA80CP V140LA20C V275LS40C V130LT20C V175LA20CP V175LT20C V140LA20CP
V150LT2 V320LA20CP V175LA10CP V150LT1 V150LXR1311 V150LS2 V250LA20CP V250LA40C V275LA20CP
V130LA20CP V230LA20CP V140LA10CP V275LA40CP V320LA20C V150LC20B V150LTX20B V510LA80C
V150LS5 V175LA10C V150LXR1265 V150LA10CP V150LXR1192 V130LA10CP V150LA10C V150LC10A
V175LT10C V250LA20C V320LC40C V175LC20C V230LA40C V150LC10C V150LS1P V150LA20CPX360
V175LA20CX425 V275LA10CP V275LA40CPX680 V300LA40CPX745 V385LA40CP V420LA40CP V625LA80CP
V150LA20CX360 V150LS1 V150LS10C
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