Varistor Products
©2012 Littelfuse, Inc.
Revision: February 9, 2012
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
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 -FBEoGSFF)BMPHFO'SFF
BOE3P)4DPNQMJBOU
t )Jgh energy
absorption capability
W
TM 40J to 530J (2ms)
t )JHIQVMTFMJGFSBUJOH
t )JHIQFBLQVMTF
current capability
I
TM 3500A to
"μs)
t Wide operating
voltage range
V
M(AC)RMS7UP7
t "WBJMBCMFJOUBQFBOE
reel for automatic
insertion; Also available
XJUIDSJNQFEBOEPS
trimmed lead styles
t /PEFSBUJOHVQUP
$BNCJFOU
t The C-III Seriesis
TVQQMJFEJONN
14mm and 20mm
disc versions with
various lead options
Agency Approvals
Absolute Maximum Ratings
t'PSSBUJOHTPGJOEJWJEVBMNFNCFSTPGBTFSJFTTFF%FWJDF3BUJOHTBOE4QFDJmDBUJPOTDIBSU
Agency Agency File Number
E320116
-3

42201-006
Continuous C-III Series Units
Steady State Applied Voltage:
%$7PMUBHF3BOHF7M(AC)RMS) 130 to 660 V
Transients:
Single-Pulse Peak Current (ITMμs Wave
(See Peak Pulse Current Test Waveform)
UP A
Single-Pulse Energy Range (WTM) 2ms Rectangular Wave 40 to 530 J
Operating Ambient Temperature Range (TA)UP $
Storage Temperature Range (TSTG) -55 to +125 $
Temperature Coefficient (aV) of Clamping Voltage (VC) at Specified Test Current <0.0 $
)J1PU&ODBQTVMBUJPO$0"5*/(*TPMBUJPO7PMUBHF$BQBCJMJUZ 2500 V
$0"5*/(*OTVMBUJPO3FTJTUBODF 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.
RoHS
Varistor Products
©2012 Littelfuse, Inc.
Revision: February 9, 2012
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
Part Number Branding
Disc
Size
(mm)
Maximum Ratings (85 °C) Specifications (25 °C)
Continuous Transient Varistor Voltage
at 1mA DC Test
Current
Maximum
Clamping
Voltage
(8/20μs)
Duty Cycle
Surge Rating
Maximum
VRMS
VM(AC)
(V)
Withstanding
Energy (2ms)
WTM ( )
(J)
Peak Current
(8/20μs)
ITM1
1 Pulse
(A)
ITM2
2 Pulses
(A)
V/
Min
(V)
V/
Max
(V)
VC
(V)
Ip
(A)
3kA
(8/20μs)
#
Pulses
750A
(8/20μs)
#
Pulses
7-"$1 1-$ 10 130 40 3500 3000   340 25 2 20
7-"$1 1-$ 14 130  6500 5000   340 50 10 
7-"$1 1-$ 20 130 200 10000    340 100 20 120
7-"$19 19 20 130 200 10000   220 325 100 20 120
7-"$1 1-$ 10 140 45 3500 3000  242 360 25 2 20
7-"$1 1-$ 14 140  6500 5000  242 360 50 10 
7-"$1 1-$ 20 140 210 10000   242 360 100 20 120
7-"$19 19 20 140 210 10000   230 340 100 20 120
7-"$1 1-$ 10 150 50 3500 3000 212   25 2 20
7-"$1 1-$ 14 150 100 6500 5000 212   50 10 
7-"$1 1-$ 20 150 215 10000  212   100 20 120
7-"$19 19 20 150 215 10000  212 243 360 100 20 120
7-"$1 1-$ 10  55 3500 3000  303 455 25 2 20
7-"$1 1-$ 14  110 6500 5000  303 455 50 10 
7-"$1 1-$ 20  220 10000   303 455 100 20 120
7-"$19 19 20  220 10000    425 100 20 120
7-"$1 1-$ 10 230 60 3500 3000 324   25 2 20
7-"$1 1-$ 14 230 125 6500 5000 324   50 10 
7-"$1 1-$ 20 230  10000  324   100 20 120
7-"$19 19 20 230  10000  324   10 0 20 120
7-"$1 1-$ 10 250 65 3500 3000 354  650 25 2 20
7-"$1 1-$ 14 250 135 6500 5000 354  650 50 10 
7-"$1 1-$ 20 250 300 10000  354  650 100 20 120
7-"$19 19 20 250 300 10000  354 413 620 100 20 120
7-"$1 1-$ 10   3500 3000    25 2 20
7-"$1 1-$ 14  145 6500 5000    50 10 
7-"$1 1-$ 20  320 10000     100 20 120
7-"$19 19 20  320 10000   453  10 0 20 120
7-"$1 1-$ 10 300  3500 3000 420   25 2 20
7-"$1 1-$ 14 300 155 6500 5000 420   50 10 
7-"$1 1-$ 20 300 335 10000  420   10 0 20 120
7-"$19 19 20 300 335 10000  420   10 0 20 120
7-"$1 1-$ 10 320  3500 3000 462 565  25 2 20
7-"$1 1-$ 14 320 165 6500 5000 462 565  50 10 
7-"$1 1-$ 20 320 345 10000  462 565  100 20 120
7-"$19 19 20 320 345 10000  462 540  100 20 120
7-"$1 1-$ 10   3500 3000   1025 25 2 20
7-"$1 1-$ 14   6500 5000   1025 50 10 
7-"$1 1-$ 20   10000    1025 100 20 120
7-"$1 1-$ 10 420  3500 3000 610  1120 25 2 20
7-"$1 1-$ 14 420  6500 5000 610  1120 50 10 
7-"$1 1-$ 20 420  10000  610  1120 100 20 120
7-"$1 1-$ 10 460  3500 3000 640   25 2 20
7-"$1 1-$ 14 460  6500 5000 640   50 10 
7-"$1 1-$ 20 460 430 10000  640   10 0 20 120
7-"$1 1-$ 10   3500 3000   1240 25 2 20
7-"$1 1-$ 14   6500 5000   1240 50 10 
Varistor Products
©2012 Littelfuse, Inc.
Revision: February 9, 2012
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 (continued from previous page)
/05&4
"WFSBHFQPXFSEJTTJQBUJPOPGUSBOTJFOUTOPUUPFYDFFE8BOE8GPSNPEFMTJ[FTNNBOENNSFTQFDUJWFMZ
NNQBSUTBMTPBWBJMBCMFDPOUBDUGBDUPSZGPSGVSUIFSJOGPSNBUJPO
'PSBEEJUJPOBMPSJOUFSNFEJBSZWPMUBHFSBUJOHTDPOUBDUGBDUPSZ
Part Number Branding
Disc
Size
(mm)
Maximum Ratings (85 °C) Specifications (25 °C)
Continuous Transient Varistor Voltage
at 1mA DC Test
Current
Maximum
Clamping
Voltage
(8/20μs)
Duty Cycle
Surge Rating
Maximum
VRMS
VM(AC)
(V)
Withstanding
Energy (2ms)
WTM ( )
(J)
Peak Current
(8/20μs)
ITM1
1 Pulse
(A)
ITM2
2 Pulses
(A)
V/
Min
(V)
V/
Max
(V)
VC
(V)
Ip
(A)
3kA
(8/20μs)
#
Pulses
750A
(8/20μs)
#
Pulses
7-"$1 1-$ 20  420 10000    1240 100 20 120
7-"$1 1-$ 10 510  3500 3000   1350 25 2 20
7-"$1 1-$ 14 510 205 6500 5000   1350 50 10 
7-"$1 1-$ 20 510 440 10000    1350 100 20 120
7-"$1 1-$ 10 550  3500 300   1435 25 2 20
7-"$1 1-$ 14 550 210 6500 5000   1435 50 10 
7-"$1 1-$ 20 550 450 10000    1435 100 20 120
7-"$1 1-$ 10  100 3500 3000  1000 1500 25 2 20
7-"$1 1-$ 14  230 6500 5000  1000 1500 50 10 
7-"$1 1-$ 20  460 10000   1000 1500 100 20 120
7-"$1 1-$ 10 625 105 3500 3000  1100 1650 25 2 20
7-"$1 1-$ 14 625 235 6500 5000  1100 1650 50 10 
7-"$1 1-$ 20 625  10000   110 0  100 20 120
7-"$1 1-$ 10 660 110 3500 3000  1210  25 2 20
7-"$1 1-$ 20 660 510 10000   1210  100 20 120
7-"$1 1-$ 10  115 3500 3000  1240  25 2 20
7-"$1 1-$ 14  240 6500 5000  1210  50 10 
7-"$1 1-$ 20  520 10000   113 0  100 20 120
7-"$1 1-$ 14 1000 260 6500 5000 1500   50 10 
7-"$1 1-$ 20 1000 530 10000  1500   10 0 20 120
Phenolic Coating Option -- C-III Series Varistors for Hi-Temperature Operating Conditions:
t 1IFOPMJD$PBUFE$***4FSJFTEFWJDFTBSFBWBJMBCMFXJUIJNQSPWFENBYJNVNPQFSBUJOHNBYJNVNUFNQFSBUVSF$
t 5IFTFEFWJDFTBMTPIBWFJNQSPWFEUFNQFSBUVSFDZDMJOHQFSGPSNBODFDBQBCJMJUZ
t 3BUJOHTBOE4QFDJmDBUJPOTBSFBTQFSTUBOEBSE$***4FSJFTFYDFQU)Jo1PU
Encapsulation (Isolation Voltage Capability)=500V.
t 5PPSEFSBEE9UPQBSUOVNCFSFH7-"$19
t 5IFTFEFWJDFTBSFOPU6-$4"7%&PS$&$$DFSUJmFE
t $POUBDUGBDUPSZGPSGVSUIFSEFUBJMT
t 1SPEVDUNBSLJOH
LF 9
P230P40C
YYWW Phenolic Coated
Option
Identifier
Lead-Free,
Halogen-Free
& RoHS Compliant
Indicator
Varistor Products
©2012 Littelfuse, Inc.
Revision: February 9, 2012
C-III Varistor Series
Radial Lead Varistors > C-III series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
4IPVMEUSBOTJFOUTPDDVSJOSBQJETVDDFTTJPOUIFBWFSBHF
power dissipation is the energy (watt-seconds) per pulse
times the number of pulses per second. The power so
developed must be within the specifications shown on the
%FWJDF3BUJOHTBOE4QFDJmDBUJPOT5BCMFGPSUIFTQFDJmD
Current Energy and Power Dissipation Ratings
Peak Pulse Current Test Waveform
100
90
50
10
O
1
T
T
1
T
2
TIME
PERCENT OF PEAK VALUE
01 = Virtual Origin of Wave
55JNFGSPNUPPG1FBL
T1 = Rise Time = 1.25 x T
T2%FDBZ5JNF
Example 'PSBOμT$VSSFOU8BWFGPSN
μs = T1 = Rise Time
20μs = T2%FDBZ5JNF
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 1A - Power Derating for Epoxy Coated
Figure 2
10000
1000
100
0.001 0.01 0.1 1 10 100 1000 10000
PEAK CURRENT (A)
MAXIMUM PEAK VOLTAGE (V)
10000
1000
100
0.001 0.01 0.1 1 10 100 1000 10000
PEAK CURRENT (A)
MAXIMUM PEAK VOLTAGE (V)
MODEL SIZE = 10MM
T
A
= -55
o
C TO 85
o
C
130 to 625V
M(AC)
RATING
MAXIMUM CLAMP
VOLTAGE
625 460 440 385
230
250
275
300
320
175
150
140
130
420
550 510
Maximum Clamping Voltage for 10mm Parts
V130LA5C(P) – V625LA10C(P)
1
104
105
106
2
∞
10
10
3
10
2
10 100 1,000 10,000
SURGE IMPULSE DURATION (μs)
10,000
1,000
100
10
1
RATED PEAK SURGE CURRENT (A)
MODEL SIZE = 10mm
T
A
= -55
o
C TO 85
o
C
130 TO 625V
M(AC)
RATING
Repetitive Surge Capability for 10mm Parts
V130LA5C(P)-V320LA10C(P)
Figure 3 Figure 4
Transient V-I Characteristics Curves Pulse Rating Curves
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 ( oC)
PERCENT OF RATED VALUE
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.
Figure 1B - Power Derating for Phenolic Coated
Varistor Products
©2012 Littelfuse, Inc.
Revision: February 9, 2012
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 10 10 0 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 10 100 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) - V680LA10C (P)
V130LA20CX325(P) - V300LA40CX245 (P)
10,000
1,000
100
0.001 0.01 0.1 110 100 1000 10000
V300LA40CX745(P)
V275LA40CX680(P)
V250LA40CX620(P)
V230LA40CX570(P)
V175LA20CX425(P)
V150LA20CX360(P)
V140LA20CX340(P)
V130LA20CX325(P)
V300LA40CX810(P)
Maximum Voltage (V)
Peak Amperes (A)
Repetitive Surge Capability for 20mm Parts
V130LA20C(P)-V680LA100C(P)
Repetitive Surge Capability for 14mm Parts
V130LA10C(P)-V420LA20C(P)
Pulse Rating Curves (continued)
Figure 5Figure 6
Figure 7 Figure 8
Figure 9
10,000
1,000
100
10
110 100 1,000 10,000
SURGE IMPULSE DURATION (μs)
RATED PEAK SURGE CURRENT (A)
10 12
102
103
104
MODEL SIZE = 14mm
TA = -55oC TO 85oC
130 TO 320VM(AC) RATING
∞
10,000
1,000
100
10
110 100 1,000 10,000
SURGE IMPULSE DURATION (μs)
RATED PEAK SURGE CURRENT (A)
12
103
104
MODEL SIZE = 20mm
TA = -55oC TO 85oC
130 TO 320VM(AC) RATING
10
102
∞
Varistor Products
©2012 Littelfuse, Inc.
Revision: February 9, 2012
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 ¡$UP¡$¡$UP¡$
Humidity Aging ¡$3)IPVST
UZQJDBMWPMUBHFDIBOHF
¡$UP¡$UJNFT
UZQJDBMWPMUBHFDIBOHF
Solvent Resistance .*-o45%o.FUIPE'
Moisture Sensitivity -FWFM+o45%o$
Lead Material 5JOo$PBUFE$PQQFS8JSF
Soldering
Characteristics
4PMEFSBCJMJUZQFS.*-o45%o
.FUIPE&
Insulating Material $VSFEnBNFSFUBSEBOUFQPYZQPMZNFS
NFFUT6-7oSFRVJSFNFOUT
Device Labeling .BSLFEXJUI-'WPMUBHF6-$4"-PHPT
and date code
Physical Specifications Environmental Specifications
Wave Solder Profile
0
50
100
150
200
250
300
00.511.522.5 33.54
TIME(MINUTES)
TEMPERATURE
(ºC)
Maximum Wave 240C
Lead–free Profile
0
50
100
150
200
250
300
00.511.522.5 33.54
TIME(MINUTES)
TEMPERATURE
(ºC)
Maximum Wave 260C
Non Lead–free Profile
Figure 10 Figure 11
Varistor Products
©2012 Littelfuse, Inc.
Revision: February 9, 2012
C-III Varistor Series
Radial Lead Varistors > C-III series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
C–III Series
NUMBER OF SURGES
(RATED FOR 120 PULSES)
010050 150 250 300200
600
550
500
450
400
350
300
CLAMPING VOLTAGE AT 750A
V175LA20C
750A (8/20μs)
AC Bias Reliability
The C-III Series MOVs were designed for use on the AC
line.
The varistor is connected across the AC line and is
biased with a constant amplitude sinusoidal voltage. It
should be noted that the definition of failure is a shift in the
nominal varistor voltage (V/FYDFFEJOH"MUIPVHI
this type of varistor is still functioning normally after this
NBHOJUVEFPGTIJGUEFWJDFTBUUIFMPXFSFYUSFNJUJFTPG7/
tolerance will begin to dissipate more power.
#FDBVTFPGUIJTQPTTJCJMJUZBOFYUFOTJWFTFSJFTPG
statistically designed tests were performed to determine
the reliability of the C-III type of varistor under AC bias
combined with high levels of temperature stress. To
EBUFUIJTUFTUIBTHFOFSBUFEPWFSEFWJDFIPVSTPG
PQFSBUJPOBUBUFNQFSBUVSFPG$BMUIPVHIPOMZSBUFEBU
$$IBOHFTJOUIFOPNJOBMWBSJTUPSWPMUBHFNFBTVSFEBU
N"PGMFTTUIBOIBWFCFFOSFDPSEFEBTEJTQMBZFEJO
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.
*OUIFMPXQPXFS"$NBJOTFOWJSPONFOUJOEVTUSZ
TUBOEBSET6-*&$/&."BOE*&&&BMMTVHHFTUUIBUUIF
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
mWFL"USBOTJFOUTJTUIFSFRVJSFEDBQBCJMJUZUIFSBUFE
repetitive surge current for the C-III Series is 20 pulses
for the 20mm units and 10 pulses for the 14mm Series.
"TBNFBTVSFPGUIFJOIFSFOUEFWJDFDBQBCJMJUZTBNQMFT
PGUIFNN7-"$EFWJDFTXFSFTVCKFDUFEUP
a worst case repetitive transient surges test. After 20
QVMTFTFBDIPGL"UIFSFXBTOFHMJHJCMFDIBOHFJO
the device characteristics. Changes in the clamping
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SFDPSEFEBTTIPXOJOUIFVQQFSEJBHSBNBUSJHIU
4BNQMFTPGUIFNN4FSJFT7-"$XFSFTVCKFDUFE
UPSFQFUJUJWFTVSHFPDDVSSFODFTPG""HBJOUIFSFXBT
negligible changes in any of the device characteristics
BGUFSQVMTFTBTTIPXOJOUIFMPXFSEJBHSBNBUSJHIU
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
NUMBER OF SURGES
CLAMPING VOLTAGE AT 3kA
V130LA20C
3kA (8/20μs)
(RATED FOR 20 PULSES)
010515253020
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
Varistor Products
©2012 Littelfuse, Inc.
Revision: February 9, 2012
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 VRMS Voltage
Model
10mm Size 14mm Size 20mm Size
Min. Max. Min. Max. Min. Max.
AAll  16.0 (0.630) 13.5 (0.531)   
ØD All   13.5 (0.531)   
eAll 6.5 (0.256)  6.5 (0.256)  6.5 (0.256) 
e1
130 - 320  5.5 (0.216)    
      
      
E
130 - 320
-

-

-

 11.0 (0.433) 11.0 (0.433) 11.0 (0.433)
 14.0 (0.551) 14.0 (0.551) 14.0 (0.551)
Øb 130 - 625      
>625  1.05 (0.041)
ATRIM All o  o  o 
LTRIM All      
%JNFOTJPOTBSFJONJMMJNFUFSTJODIFT
1. 10mm lead spacing also available. See additional lead style options.
NNBOENNEFWJDFTBMTPBWBJMBCMFVQPOSFRVFTU$POUBDUGBDUPSZGPSEFUBJMT
CRIMPED AND TRIMMED LEADS
Radial lead types can be supplied with combination preformed
crimp and trimmed leads. This option is supplied to the
dimensions shown below.
4FBUJOHQMBOFJOUFSQSFUBUJPOQFS*&$
Varistor Products
©2012 Littelfuse, Inc.
Revision: February 9, 2012
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 
P0 'FFE)PMF1JUDI 
P1 'FFE)PMF$FOUFSUP1JUDI 
P2 )PMF$FOUFSUP$PNQPOFOU
Center 
F -FBEUP-FBE%JTUBODF 
h Component Alignment 2.00 Max
W Tape Width 
W0 )PME%PXO5BQF8JEUI 
W1 )PMF1PTJUJPO 
W2 )PME%PXO5BQF1PTJUJPO 0.5 Max
H )FJHIU'SPN5BQF$FOUFS5P
Component Base 
H0 4FBUJOH1MBOF)FJHIU 
H1 $PNQPOFOU)FJHIU 36 Max 40 Max 46.5
Max
D0 'FFE)PMF%JBNFUFS 
t Total Tape Thickness 
p Component Alignment 3° Max
U 6OEFSDSJNQ8JEUI .BY
Tape and Reel Specifications
E
DP
DH DH
W1
W
Ft
W2W0
P
DP
C
b
H0
D0
H1SEATING
PLANE
P1
P1
P2
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P1
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DP
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H1
P2
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P1
P0
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E
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W1
W
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W2
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P2
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Varistor Products
©2012 Littelfuse, Inc.
Revision: February 9, 2012
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
LEAD-FREE, HALOGEN-FREE AND
RoHS COMPLIANT INDICATOR
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 õ7 500 500 500
ö7 400 400 400
20mm õ7 500 500 500
ö7 400 400 400
Series + Packaging / Lead Style Designators:
0SEFSJOHFYBNQMFT
Straight
Lead
Bulk Pack
(standard)
Straight
Lead
Tape & Reel
Crimped &
Trimmed
Lead
Bulk Pack
Under-Crimp
Lead
Tape & Reel
V130LA20CP V130LS20CP V130LC20CP V130LU20CP Standard Model Order As
7-"$1 7-"$1X10
-JUUFMGVTF$***4FSJFTWBSJTUPSTBSFTIJQQFETUBOEBSEJOCVMLQBDL
with straight leads and lead spacing outlined in the Package
%JNFOTJPOTTFDUJPOPGUIJTEBUBTIFFU
5BQF3FFM2VBOUJUJFT
$SJNQFEMFBETBSFTUBOEBSEPO-"4FSJFTWBSJTUPSTTVQQMJFEJO
UBQFBOESFFMEFOPUFEXJUI-5
-$TUZMFJTTVQQMJFEJOCVMLPOMZ
-6TUZMFJTTVQQMJFEJOUBQFSFFMPOMZ
'PSDSJNQFEMFBETXJUIPVUUSJNNJOHBOEBOZWBSJUJPOTPUIFSUIBO
UIBUEFTDSJCFEBCPWFQMFBTFDPOUBDU-JUUFMGVTF
'PSTUBOEBSEQBSUTVTFUIFBASE PART designator only.
'PSQBSUTXJUIOPOTUBOEBSEPQUJPOTTVDIBTBEEJUJPOBMGPSNQBDLBHJOH
BOEMFBETQBDFPQUJPOTVTFBASE PART + OPTION CODE.
OPTION CODEJUFNTBSFTVCKFDUUPBWBJMBCJMJUZBOENJOJNVNPSEFS
SFRVJSFNFOUT1MFBTFDPOUBDUB-JUUFMGVTFQSPEVDUTSFQSFTFOUBUJWFGPS
additional information or questions
BASE PART CODES: OPTION CODES:
Standard Model Order As
7-"$1 7-"$1X2855
Packaging and Quantities:
X10:..-&"%41"$*/(015*0/
'PSNNMFBETQBDJOHBWBJMBCMFPONN
EJBNFUFSNPEFMTPOMZBQQFOETUBOEBSENPEFM
#"4&1"35OVNCFSXJUI9&YBNQMF
X2855:/JDLFM#BSSJFS$0"5&%8*3&015*0/
"MMTUBOEBSEQBSUTVTF5JOo$PBUFE$PQQFSXJSF/JDLFM
#BSSJFS$PBUFEXJSFJTBWBJMBCMFBTBOPQUJPODPOTJTUJOH
PG$PQQFSXJSFXJUIBnBTIJOHPG/JDLFMGPMMPXFECZ
a top coating of Tin. To order append standard model
#"4&1"35OVNCFSXJUI9&YBNQMF
X1347:)J5FNQFSBUVSFQIFOPMJDDPBUJOHPQUJPO
Phenolic Coated C-III Series devices are available with improved
maximum operating maximum temperature of 125°C.
5PPSEFSBEE9UPFOEPGQBSUOVNCFS
&YBNQMF7-"$19).
'PSBEEJUJPOBMJOGPSNBUJPOQMFBTFSFGFSUPUIFTFDUJPOMBCFMFE
1IFOPMJD$PBUJOH0QUJPOPOUIFUIJSEQBHFPGUIJTEPDVNFOU
VOEFSUIF&MFDUSJDBM$IBSBDUFSJTUJDTUBCMF