101
Varistor Products
Revision: June 3, 2009
©2009 Littelfuse, Inc. C-III Varistor Series
Radial Lead Varistors > C-III series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
C–III Series
C-III Varistor Series
RoHS
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.
Features
t -FBEoGSFFBOE3P)4
compliant option
available. Please see
the device and ratings
specifications table
for more information
t )Jgh energy
absorption capability
W
TM 40J to 530J (2ms)
t )JHIQVMTFMJGFSBUJOH
t )JHIQFBLQVMTF
current capability
I
TM 3500A to
9000A (8/20μs)
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 /PEFSBUJOHVQUP
85ºC ambient
t The C-III Series is
supplied in 10mm,
14mm and 20mm
disc versions with
various lead options
Agency Approvals
Absolute Maximum Ratings
t'PSSBUJOHTPGJOEJWJEVBMNFNCFSTPGBTFSJFTTFF%FWJDF3BUJOHTBOE4QFDJmDBUJPOTDIBSU
Agency Agency File Number
E75961
-3
116895E
42201-006
Continuous C-III Series Units
Steady State Applied Voltage:
%$7PMUBHF3BOHF7."$3.4) 130 to 660 V
Transients:
Single-Pulse Peak Current (ITM) 8/20μs Wave
(See Peak Pulse Current Test Waveform)
3500 to 9000 A
4JOHMF1VMTF&OFSHZ3BOHF8TMNT3FDUBOHVMBS8BWF 40 to 530 J
0QFSBUJOH"NCJFOU5FNQFSBUVSF3BOHF5A) -55 to +85 ºC
4UPSBHF5FNQFSBUVSF3BOHF5STG) -55 to +125 ºC
Temperature Coefficient (aV) of Clamping Voltage (VC) at Specified Test Current <0.0 %/ºC
)J1PU&ODBQTVMBUJPO$0"5*/(*TPMBUJPO7PMUBHF$BQBCJMJUZ 5000 V
$0"5*/(*OTVMBUJPO3FTJTUBODF 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.
102
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Revision: June 3, 2009
C-III Varistor Series
Radial Lead Varistors > C-III series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
C-III Series Ratings
Lead–free and RoHS Compliant
Models Standard Models Maximum Ratings (85 °C)
Continuous Transient
Part Number Branding Part Number Branding
Maximum V3.4
VM(AC)
(V)
Withstanding
Energy (2ms)WTM ( )
(J)
Peak Current (8/20μs)
ITM1 1 Pulse
(A)
ITM2 2 Pulses
(A)
7-"$1 1-$ 7-"$ -$ 130 40 3500 3000
7-"$1 1-$ 7-"$ -$ 130 80 6000 5000
7-"$1 1-$ 7-"$ -$ 130 200 9000 7000
7-"$19 19 7-"$9 $9 130 200 9000 7000
7-"$1 1-$ 7-"$ -$ 140 45 3500 3000
7-"$1 1-$ 7-"$ -$ 140 90 6000 5000
7-"$1 1-$ 7-"$ -$ 140 210 9000 7000
7-"$19 19 7-"$9 $9 140 210 9000 7000
7-"$1 1-$ 7-"$ -$ 150 50 3500 3000
7-"$1 1-$ 7-"$ -$ 150 100 6000 5000
7-"$1 1-$ 7-"$ -$ 150 215 9000 7000
7-"$19 19 7-"$9 $9 150 215 9000 7000
7-"$1 1-$ 7-"$ -$ 175 55 3500 3000
7-"$1 1-$ 7-"$ -$ 175 110 6000 5000
7-"$1 1-$ 7-"$ -$ 175 220 9000 7000
7-"$19 19 7-"$9 $9 175 220 9000 7000
7-"$1 1-$ 7-"$ -$ 230 60 3500 3000
7-"$1 1-$ 7-"$ -$ 230 125 6000 5000
7-"$1 1-$ 7-"$ -$ 230 280 9000 7000
7-"$19 19 7-"$9 9 230 280 9000 7000
7-"$1 1-$ 7-"$ -$ 250 65 3500 3000
7-"$1 1-$ 7-"$ -$ 250 135 6000 5000
7-"$1 1-$ 7-"$ -$ 250 300 9000 7000
7-"$19 19 7-"$9 $9 250 300 9000 7000
7-"$1 1-$ 7-"$ -$ 275 70 3500 3000
7-"$1 1-$ 7-"$ -$ 275 145 6000 5000
7-"$1 1-$ 7-"$ -$ 275 320 9000 7000
7-"$19 19 7-"$9 $9 275 320 9000 7000
7-"$1 1-$ 7-"$ -$ 300 75 3500 3000
7-"$1 1-$ 7-"$ -$ 300 155 6000 5000
7-"$1 1-$ 7-"$ -$ 300 335 9000 7000
7-"$19 19 7-"$9 $9 300 335 9000 7000
7-"$1 1-$ 7-"$ -$ 320 80 3500 3000
7-"$1 1-$ 7-"$ -$ 320 165 6000 5000
7-"$1 1-$ 7-"$ -$ 320 345 9000 7000
7-"$19 19 7-"$9 $9 320 345 9000 7000
7-"$1 1-$ 7-"$ -$ 385 175 6000 5000
7-"$1 1-$ 7-"$ -$ 385 370 9000 7000
7-"$1 1-$ 7-"$ -$ 420 185 6000 5000
7-"$1 1-$ 7-"$ -$ 420 390 9000 7000
7-"$1 7-$ 7-"$ -$ 460 95 3500 3000
7-"$1 7-$ 7-"$ -$ 460 190 6000 5000
7-"$1 1-$ 7-"$ -$ 460 430 9000 7000
7-"$1 1-$ 7-"$ -$ 480 420 9000 7000
7-"$1 1-$ 7-"$ -$ 510 440 9000 7000
7-"$1 1-$ 7-"$ -$ 550 450 9000 7000
7-"$1 1-$ 7-"$ -$ 575 460 9000 7000
7-"$1 1-$ 7-"$ -$ 625 490 9000 7000
7-"$1 1-$ 7-"$ -$ 660 510 9000 7000
7-"$1 1-$ 7-"$ -$ 680 520 9000 7000
103
Varistor Products
Revision: June 3, 2009
©2009 Littelfuse, Inc. C-III Varistor Series
Radial Lead Varistors > C-III series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
C–III Series
C-III Series Specifications
Lead–free And
RoHS Compliant
Models
Standard Models Model Size
Disc
Diameter (mm)
Specifications (25 °C)
Varistor Voltage at 1mA
DC Test Current
Maximum Clamping
Voltage (8/20μs) Duty Cycle Surge Rating
Part Number Part Number V/ Min
(V)
V/ Max
(V)
VC
(V)
Ip
(A)
3kA (8/20μs)
# Pulses
750A (8/20μs)
# Pulses
7-"$1 7-"$ 10 184 228 340 25 2 100
7-"$1 7-"$ 14 184 228 340 50 40 600
7-"$1 7-"$ 20 184 228 340 100 80 1600
7-"$19 7-"$9 20 184 220 325 100 80 1600
7-"$1 7-"$ 10 198 242 360 25 2 100
7-"$1 7-"$ 14 198 242 360 50 40 600
7-"$1 7-"$ 20 198 242 360 100 80 1600
7-"$19 7-"$9 20 198 230 340 100 80 1600
7-"$1 7-"$ 10 212 268 395 25 2 100
7-"$1 7-"$ 14 212 268 395 50 40 600
7-"$1 7-"$ 20 212 268 395 100 80 1600
7-"$19 7-"$9 20 212 243 360 100 80 1600
7-"$1 7-"$ 10 247 303 455 25 2 100
7-"$1 7-"$ 14 247 303 455 50 40 600
7-"$1 7-"$ 20 247 303 455 100 80 1600
7-"$19 7-"$9 20 247 285 425 100 80 1600
7-"$1 7-"$ 10 324 396 595 25 2 100
7-"$1 7-"$ 14 324 396 595 50 40 600
7-"$1 7-"$ 20 324 396 595 100 80 1600
7-"$19 7-"$9 20 324 384 570 100 80 1600
7-"$1 7-"$ 10 354 429 650 25 2 100
7-"$1 7-"$ 14 354 429 650 50 40 600
7-"$1 7-"$ 20 354 429 650 100 80 600
7-"$19 7-"$9 20 354 413 620 100 80 1600
7-"$1 7-"$ 10 389 473 710 25 2 100
7-"$1 7-"$ 14 389 473 710 50 40 600
7-"$1 7-"$ 20 389 473 710 100 80 1600
7-"$19 7-"$9 20 389 453 680 100 80 1600
7-"$1 7-"$ 10 420 517 775 25 2 100
7-"$1 7-"$ 14 420 517 775 50 40 600
7-"$1 7-"$ 20 420 517 775 100 80 1600
7-"$19 7-"$9 20 420 490 745 100 80 1600
7-"$1 7-"$ 10 462 565 850 25 2 100
7-"$1 7-"$ 14 462 565 850 50 40 600
7-"$1 7-"$ 20 462 565 850 100 80 1600
7-"$19 7-"$9 20 462 540 810 100 80 1600
7-"$1 7-"$ 14 558 682 1025 50 40 600
7-"$1 7-"$ 20 558 682 1025 100 80 1600
7-"$1 7-"$ 14 610 748 1120 50 40 600
7-"$1 7-"$ 20 610 748 1120 100 80 1600
7-"$1 7-$ 10 640 790 1190 25 2 100
7-"$1 7-$ 14 640 790 1190 50 40 600
7-"$1 7-"$ 20 640 790 1190 100 80 1600
7-"$1 7-"$ 20 670 825 1240 100 80 1600
7-"$1 7-"$ 20 735 910 1350 100 80 1600
7-"$1 7-"$ 20 780 970 1435 100 80 1600
7-"$1 7-"$ 20 805 1000 1500 100 80 1600
7-"$1 7-"$ 20 900 1100 1725 100 80 1600
7-"$1 7-"$ 20 940 1210 1820 100 80 1600
7-"$1 7-"$ 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
104
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©2009 Littelfuse, Inc.
Revision: June 3, 2009
C-III Varistor Series
Radial Lead Varistors > C-III series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
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.
Power Dissipation Ratings
V320LA10C(P)
V300LA10C(P)
V275LA10C(P)
V250LA10C(P)
V175LA5C(P)
V150LA5C(P)
V140LA5C(P)
V130LA5C(P)
V230LA10C(P)
MODEL SIZE = 10mm
10,000
1,000
100
0.001 0.01 0.1 1 1.0 100 1000 10000
Maximum Voltage (V)
Peak Am
p
eres
(
A
)
V460LA10C(P)
Maximum Clamping Voltage for 10mm Parts
Peak Pulse Current Test Waveform
V130LA5C(P) – V460LA10C(P)
Current Energy and Power Derating Curve
Transient V-I Characteristics Curves
MODEL SIZE = 10mm
10 100 1,000 10,000
10,000
1,000
100
10
1
10
2
1
102
10 3
104
8
Peak Rated Surge Current (A)
Surge Impulse Duration (μs)
Repetitive Surge Capability for 10mm Parts
V130LA5C(P)-V320LA10C(P)
Pulse Rating Curves
100
90
50
10
O
1
T
T
1
T
2
TIME
PERCENT OF PEAK VALUE
01 = Virtual Origin of Wave
T = Time from 10% to 90% of Peak
T13JTF5JNFY5
T2%FDBZ5JNF
Example 'PSBOμs Current Waveform:
8μs = T13JTF5JNF
20μs = T2%FDBZ5JNF
100
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)
PERCENT OF RATED VALUE
Figure 1
Figure 2
Figure 3
Figure 4
105
Varistor Products
Revision: June 3, 2009
©2009 Littelfuse, Inc. C-III Varistor Series
Radial Lead Varistors > C-III series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
C–III Series
Maximum Clamping Voltage for 14mm Parts
V130LA10C(P) – V420LA20C(P)
10,000
1,000
100
0.001 0.01 0.1 1 1.0 100 1000 10000
V420LA20C(P)
V385LA20C(P)
V250LA20C(P)
MODEL SIZE = 14mm
Maximum Voltage (V)
Peak Amperes (A)
V320LA20C(P)
V300LA20C(P)
V230LA20C(P)
V175LA10C(P)
V150LA10C(P)
V140LA10C(P)
V130LA10C(P)
V275LA20C(P)
V460LA20C(P)
Transient V-I Characteristics Curves (continued)
MODEL SIZE = 20mm
10,000
1,000
100
0.001 0.01 0.1 1 1.0 10 0 1000 10000
V575LA80C(P)
V660LA100C(P)
V625LA80C(P)
V510LA80C(P)
V460LA40C(P)
V480LA80C(P)
V420LA40C(P)
V385LA40C(P)
V175LA20C(P)
V150LA20C(P)
V140LA20C(P)
V130LA20C(P)
V230LA40C(P)
V250LA40C(P)
V275LA40C(P)
V300LA40C
(P)
V320LA40C(P)
V680LA100C(P)
Maximum Voltage (V)
Peak Amperes (A)
Maximum Clamping Voltage for 20mm Parts
Maximum Clamping Voltage for Low Clamping Voltage Parts
V130LA5C(P) - V320LA10C (P)
V130LA20CX325(P) - V300LA40CX245 (P)
10,000
1,000
100
0.001 0.01 0.1 11.0 100 1000 10000
V300LA40CX745(P)
V275LA40CX680(P)
V250LA40CX620(P)
V230LA40CX570(P)
V175LA20CX425(P)
V150LA20CX360(P)
V140LA20CX340(P)
V130LA20CX325(P)
V300LA40CX810(P)
Maximum Voltage (V)
Peak Am
p
eres
(
A
)
MODEL SIZE = 14mm
10 100 1,000 10,000
10,000
1,000
100
10
8
10
103
104
10
2
1
102
103
104
Peak Rated Surge Current (A)
Surge Impulse Duration (μs)
10
2
10
3
10 100 1,000 10,000
10,000
1,000
100
10
10
2
1
102
103
104
8
MODEL SIZE = 20mm
Peak Rated Surge Current (A)
Surge Impulse Duration (μs)
Repetitive Surge Capability for 20mm Parts
V130LA20C(P)-V680LA100C(P)
Repetitive Surge Capability for 14mm Parts
V130LA10C(P)-V420LA20C(P)
Pulse Rating Curves
Figure 5Figure 6
Figure 7 Figure 8
Figure 9
106
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©2009 Littelfuse, Inc.
Revision: June 3, 2009
C-III Varistor Series
Radial Lead Varistors > C-III series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
Operating/Storage
Temperature -55°C to +85°C/-55°C to +125°C
Humidity Aging ¡$3)IPVST
+/-10% typical voltage change
+85°C to -40°C 10 times
+/-10% typical voltage change
Solvent Resistance .*-o45%o.FUIPE'
Moisture Sensitivity -FWFM+o45%o$
Lead Material 5JOo$PBUFE$PQQFS8JSF
Soldering
Characteristics
4PMEFSBCJMJUZQFS.*-o45%o
Method 208E
Insulating Material Cured, flame retardant epoxy polymer
NFFUT6-7oSFRVJSFNFOUT
Device Labeling .BSLFEXJUI-'WPMUBHF6-$4"-PHPT
and date code
Physical Specifications Environmental Specifications
Wave Solder Profile
0
50
100
150
200
250
300
00.511.522.5 33.54
TIME(MINUTES)
TEMPERATURE
(ºC)
Maximum Wave 240C
Lead–free Profile
0
50
100
150
200
250
300
00.511.522.5 33.54
TIME(MINUTES)
TEMPERATURE
(ºC)
Maximum Wave 260C
Non Lead–free Profile
C-III Series Varistors for Hi-Temperature Operating Conditions:
t 1IFOPMJD$PBUFE$***4FSJFTEFWJDFTBSFBWBJMBCMFXJUIJNQSPWFENBYJNVNPQFSBUJOHNBYJNVNUFNQFSBUVSF$
t 5IFTFEFWJDFTBMTPIBWFJNQSPWFEUFNQFSBUVSFDZDMJOHQFSGPSNBODFDBQBCJMJUZ
t 3BUJOHTBOE4QFDJmDBUJPOTBSFBTQFSTUBOEBSE$***4FSJFTFYDFQU)Jo1PU
Encapsulation (Isolation Voltage Capability)=500V.
t 5PPSEFSBEE9UPQBSUOVNCFSFH7-"$9
t 5IFTFEFWJDFTBSFOPU6-$4"7%&PS$&$$DFSUJmFE
t $POUBDUGBDUPSZGPSGVSUIFSEFUBJMT
Figure 10 Figure 11
107
Varistor Products
Revision: June 3, 2009
©2009 Littelfuse, Inc. C-III Varistor Series
Radial Lead Varistors > C-III series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
C–III Series
AC Bias Reliability
The C-III Series MOVs were designed for use on the AC
line. The varistor is connected across the AC line and is
biased with a constant amplitude sinusoidal voltage. It
should be noted that the definition of failure is a shift in the
nominal varistor voltage (V/) exceeding +/-10%. Although
this type of varistor is still functioning normally after this
magnitude of shift, devices at the lower extremities of V/
tolerance will begin to dissipate more power.
Because of this possibility, an extensive series of
statistically designed tests were performed to determine
the reliability of the C-III type of varistor under AC bias
combined with high levels of temperature stress. To
date, this test has generated over 50,000 device hours of
operation at a temperature of 125ºC, although only rated at
85ºC. Changes in the nominal varistor voltage, measured at
1mA, of less than 2% have been recorded, as displayed in
the diagram at right.
Transient Surge Current/Energy Transient Capability
The transient surge rating serves as an excellent figure
of merit for the C-III varistor. This inherent surge handling
capability is one of the C-III varistor’s best features.
The enhanced surge absorption capability results from
improved process uniformity and enhanced construction.
The homogeneity of the raw material powder and
improved control over the sintering and assembly
processes are contributing factors to this improvement.
In the low power AC mains environment, industry
TUBOEBSET6-*&$/&."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.
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.
In both cases the inherent device capability is far
in excess of the expected worst case scenario.
300
250
200
150
100
0 100 200 300 400 500 600 700 800 900 1000 1100
TIME (HOURS)
VNOM AT 1mA (V)
V130LA20C
500
450
400
350
300
0 102030405060708090100110120
NUMBER OF SURGES
CLAMPING VOLTAGE AT 3kA
V130LA20C
3kA (8/20μs)
(RATED FOR 80 PULSES)
600
550
500
450
400
350
300 0200 400 600 800 1000 1200 1400 1600 2000
NUMBER OF SURGES
CLAMPING VOLTAGE AT 750A
V175LA20C
750A (8/20μs)
(RATED FOR 1600 PULSES)
High Temperature Operating Life 125ºC for 1000 Hours
at Rated Bias
Typical Repetitive Surge Current Capability of
C-III Series MOVs
Figure 12
Figure 13
Figure 14
108
Varistor Products
©2009 Littelfuse, Inc.
Revision: June 3, 2009
C-III Varistor Series
Radial Lead Varistors > C-III series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
Product Dimensions (mm)
Øb
e1
e
ØD
25.4
(1.00)
E
A
CRIMPED AND TRIMMED LEAD
*SEATING
PLANE
L
TRIM
ATRIM
Dimension V3.4 Voltage
Model
10mm Size 14mm Size 20mm Size
Min. Max. Min. Max. Min. Max.
AAll 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)
eAll 6.5 (0.256) 8.5 (0.335) 6.5 (0.256) 8.5 (0.335) 6.5 (0.256) 8.5 (0.335)
e1
130 - 320 2.5 (0.098) 5.5 (0.216) 2.5 (0.098) 5.5 (0.216) 2.5 (0.098) 5.5 (0.216)
>320 4.5 (0.177) 9.0 (0.354) 4.5 (0.177) 9.0 (0.354)
E130 - 320 o7.3 (0.287) o7.3 (0.287) o7.3 (0.287)
>320 11.0 (0.433) 11.0 (0.433)
Øb 130 - 320 0.76 (0.030) 0.86 (0.034) 0.76 (0.030) 0.86 (0.034) 0.76 (0.030) 0.86 (0.034)
>660 0.95 (0.037) 1.05 (0.041)
ATRIM All o19.5 (0.768) o23.5 (0.925) o30.0 (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)
%JNFOTJPOTBSFJONJMMJNFUFSTJODIFT
1. 10mm lead spacing also available. See additional lead style options.
2. 7mm and 12mm devices also available upon request. Contact factory for details.
CRIMPED AND TRIMMED LEADS
3BEJBMMFBEUZQFTDBOCFTVQQMJFEXJUIDPNCJOBUJPOQSFGPSNFE
crimp and trimmed leads. This option is supplied to the
dimensions shown below.
*Seating plane interpretation per IEC-60717
109
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Revision: June 3, 2009
©2009 Littelfuse, Inc. C-III Varistor Series
Radial Lead Varistors > C-III series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
C–III Series
Symbol Description Model Size
10mm 14mm 20mm
P Pitch of Component 25.4 -/+1.0
P0 'FFE)PMF1JUDI 12.7 -/+ 0.2
P1 'FFE)PMF$FOUFSUP1JUDI 8.85 -/+ 0.8
P2 )PMF$FOUFSUP$PNQPOFOU
Center 12.7 -/+ 0.7
F -FBEUP-FBE%JTUBODF 7.50 -/+ 0.8
h Component Alignment 2.00 Max
W Tape Width 18.25 -/+ 0.75
W0 )PME%PXO5BQF8JEUI 12.0 -/+ 0.3
W1 )PMF1PTJUJPO 9.125 -/+ 0.625
W2 )PME%PXO5BQF1PTJUJPO 0.5 Max
H )FJHIU'SPN5BQF$FOUFS5P
Component Base 19.0 -/+1.0
H0 4FBUJOH1MBOF)FJHIU 16.0 -/+ 0.5
H1 $PNQPOFOU)FJHIU 36 Max 40 Max 46.5
Max
D0 'FFE)PMF%JBNFUFS 4.0 -/+ 0.2
t Total Tape Thickness 0.7 -/+ 0.2
p Component Alignment 3° Max
U Under crimp Width 8.0 Max
Tape and Reel Specifications
E
DP
DH DH
W1
W
Ft
W2W0
P
DP
C
b
H0
D0
H1SEATING
PLANE
P1
P1
P2
t BWBJMBCMFGPSWPMUBHFSBUJOHTVQUP7POMZ
W0
P0
P1
DH
E
DH
DP
W1
W
Ft
W2
P
DP
b
H
D0
H1
P2
W0
P1
P0
U
DH
E
DH
DP
W1
W
Ft
W2
P
P2
DP
b
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D0
H
1
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110
Varistor Products
©2009 Littelfuse, Inc.
Revision: June 3, 2009
C-III Varistor Series
Radial Lead Varistors > C-III series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
Part Numbering System
XX
For “VARISTOR”
VM(AC)
(Three or four digits -- 130V to 1,000V)
V XXXX LA C
RELATIVE ENERGY INDICATOR
(One or Two Digits)
C-III SERIES DESIGNATOR
P: LEAD-FREE AND RoHS
COMPLIANT OPTION
P
See OPTIONS CODES notes below
XXXXX
OPTION CODES
(See notes below)
BASE PART CODES
(See Ratings & Specifications tables and notes below)
SERIES + PACKAGING / LEAD STYLE
DESIGNATOR
(See BASE PART CODES notes below)
LA = Bulk Pack / Straight Leads (standard)
LC = Bulk Pack / Crimped and Trimmed Leads
LS = Tape and Reel / Straight Leads
LT = Tape and Reel / Crimped Leads
LU = Tape and Reel / Under-Crimped Leads
Ordering Notes:
Device Size Voltage Quantity Per Reel
"T" Reel "S" Reel "U"Reel
10mm "-- 500 500 500
14mm ≤ 275V 500 500 500
≥ 275V 400 400 400
20mm ≤ 275V 500 500 500
≥ 275V 400 400 400
Series + Packaging / Lead Style Designators:
Ordering examples:
Straight
Lead
Bulk Pack
(standard)
Straight
Lead
Tape &
Reel
Crimped
Lead
Tape &
Reel
Crimped &
Trimmed
Lead
Bulk Pack
Under-
Crimp Lead
Tape &
Reel
V130LA20C V130LS20C V130LT20C V130LC20C V130LU20C
Standard Model Order As
7-"$ 7-"$X10
-JUUFMGVTF$***4FSJFTWBSJTUPSTBSFTIJQQFETUBOEBSEJOCVMLQBDL
with straight leads and lead spacing outlined in the Package
%JNFOTJPOTTFDUJPOPGUIJTEBUBTIFFU$POUBDUB-JUUFMGVTF
representative to discuss non-standard options.
$SJNQFEMFBETBSFTUBOEBSEPO-"4FSJFTWBSJTUPSTTVQQMJFEJO
UBQFBOESFFMEFOPUFEXJUI-5
-$TUZMFJTTVQQMJFEJOCVMLPOMZ
-6TUZMFJTTVQQMJFEJOUBQFSFFMPOMZ
'PSDSJNQFEMFBETXJUIPVUUSJNNJOHBOEBOZWBSJUJPOTPUIFSUIBO
UIBUEFTDSJCFEBCPWFQMFBTFDPOUBDU-JUUFMGVTF
'PSTUBOEBSEQBSUTVTFUIFBASE PART designator only.
'PSQBSUTXJUIOPOTUBOEBSEPQUJPOTTVDIBTBEEJUJPOBMGPSNQBDLBHJOH
and lead space options), use BASE PART + OPTION CODE.
OPTION CODEJUFNTBSFTVCKFDUUPBWBJMBCJMJUZBOENJOJNVNPSEFS
SFRVJSFNFOUT1MFBTFDPOUBDUB-JUUFMGVTFQSPEVDUTSFQSFTFOUBUJWFGPS
additional information or questions
Lead–free / RoHS Designator:
'PS-FBEoGSFFBOE3P)4DPNQMJBOUQBSUTBEE1BGUFSUIFBASE
PART number and before any other OPTION CODE:
BASE PART CODES: OPTION CODES:
Standard Model
with Option Order As
7-"$9 7-"$P9
Standard Model Order As
7-"$ 7-"$X2855
Standard Model Order As
7-"$ 7-"$P
TAPE & REEL QUANTITIES:
X10:..-&"%41"$*/(015*0/
'PSNNMFBETQBDJOHBWBJMBCMFPONN
diameter models only), append standard model
#"4&1"35OVNCFSXJUI9&YBNQMF
X2855:/JDLFM#BSSJFS$0"5&%8*3&015*0/
"MMTUBOEBSEQBSUTVTF5JOo$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
