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V420LA10X2855 [LITTELFUSE]

RESISTOR, VOLTAGE DEPENDENT, 560V, 55J, THROUGH HOLE MOUNT, RADIAL LEADED;
V420LA10X2855
型号： V420LA10X2855
厂家： LITTELFUSE    LITTELFUSE
描述：

RESISTOR, VOLTAGE DEPENDENT, 560V, 55J, THROUGH HOLE MOUNT, RADIAL LEADED
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Varistor Products  
Radial Lead Varistors > LA Series  
RoHS  
LA Varistor Series  
Description  
The LA Series of transient voltage surge suppressors are  
radial leaded varistors (MOVs) that are designed to be  
operated continuously across AC power lines. These UL  
recognized varistors require very little mounting space,  
and are offered in various standard lead form options.  
The LA Series varistors are available in four model  
sizes: 7mm, 10mm, 14mm and 20mm; and have a  
V
M(AC)RMS voltage range from 130V to 1000V, and an  
energy absorption capability up to 360J. Some LA Series  
model numbers are available with clamping voltage  
selections, designated by a model number suffix of  
either A or B. The 'A' selection is the standard model;  
the 'B' selection provides a lower clamping voltage.  
See LA Series Device Ratings and Specifications  
Table for part number and brand information.  
Agency Approvals  
Agency  
Agency File Number  
E320116, E56529, E135010  
Features  
116895  
LR91788  
42201-006  
• Lead–free, Halogen-  
Free and RoHS  
compliant.  
•
•
No derating up to  
85ºC ambient  
Available in tape and  
reel or bulk pack  
•
Energy absorption  
capability (WTM)  
up to 360J  
•
Wide operating  
voltage range  
VM(AC)RMS 130V to 1000V  
Absolute Maximum Ratings  
• For ratings of individual members of a series, see Device Ratings and Specifications chart  
Continuous  
LA Series  
Units  
Steady State Applied Voltage:  
AC Voltage Range (VM(AC)RMS  
)
130 to 1000  
175 to 1200  
V
V
DC Voltage Range (VM(DC)  
)
Transients:  
Peak Pulse Current (ITM  
)
For 8/20μs Current Wave (See Figure 2)  
1200 to 6500  
A
Single Pulse Energy Range  
For 10/1000μs Current Wave (WTM  
Operating AmbientTemperature Range (TA)  
StorageTemperature Range (TSTG  
)
11 to 360  
-55 to +85  
-55 to +125  
<0.01  
J
OC  
OC  
)
Temperature Coefficient (aV) of Clamping Voltage (VC) at SpecifiedTest Current  
%/OC  
Hi-Pot Encapsulation (COATING Isolation Voltage Capability)  
(Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301)  
COATING Insulation Resistance  
2500  
1000  
V
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.  
©2010 Littelfuse, Inc.  
LAVaristor Series  
Specifications are subject to change without notice.  
Revision: August 4, 2010  
Please refer to www.littelfuse.com/series/la.html for current information.  
Varistor Products  
Radial Lead Varistors > LA Series  
LA Series Ratings & Specifications  
Maximum Rating (85°C)  
Specifications (25°C)  
Varistor  
Continuous  
Transient  
Maximum  
Clamping  
Voltage  
Typical  
Capaci-  
tance f =  
1MHz  
Voltage at  
1mA  
Peak  
Model Size  
Disc Dia.  
(mm)  
Energy 10  
x 1000μs  
Part  
Number  
VRMS  
VDC  
Current 8  
Branding  
DCTest  
8 x 20 μs  
x 20μs  
Current  
VNOM VNOM  
VM(AC)  
VM(DC)  
WTM  
ITM  
VC  
IPK  
C
Min  
(V)  
Max  
(V)  
(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  
250  
250  
250  
250  
250  
250  
275  
275  
275  
275  
275  
275  
300  
300  
300  
300  
300  
320  
320  
320  
320  
385  
385  
385  
(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  
330  
330  
330  
330  
330  
330  
369  
369  
369  
369  
369  
369  
405  
405  
405  
405  
405  
420  
420  
420  
420  
505  
505  
505  
(J)  
11  
(A)  
(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  
730  
650  
650  
650  
650  
620  
775  
710  
710  
710  
710  
680  
870  
775  
775  
775  
775  
850  
850  
850  
810  
1025  
1025  
1025  
(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  
10  
10  
25  
50  
100  
100  
10  
10  
25  
(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  
90  
V130LA1P  
V130LA2P  
P1301  
P1302  
7
7
1200  
1200  
2500  
4500  
6500  
6500  
1200  
2500  
4500  
6500  
1200  
1200  
2500  
4500  
6500  
6500  
1200  
2500  
4500  
6500  
1200  
2500  
4500  
6500  
1200  
1200  
2500  
4500  
6500  
6500  
1200  
1200  
2500  
4500  
6500  
6500  
1200  
1200  
2500  
4500  
6500  
1200  
2500  
4500  
6500  
1200  
2500  
4500  
184  
184  
184  
184  
184  
184  
198  
198  
198  
198  
212  
212  
212  
212  
212  
212  
247  
247  
247  
247  
324  
324  
324  
324  
354  
354  
354  
354  
354  
354  
389  
389  
389  
389  
389  
389  
420  
420  
420  
420  
420  
462  
462  
462  
462  
558  
558  
558  
255  
228  
228  
228  
228  
220  
242  
242  
242  
242  
284  
268  
268  
268  
268  
243  
303  
303  
303  
303  
396  
396  
396  
396  
473  
429  
429  
429  
429  
413  
515  
473  
473  
473  
473  
453  
565  
517  
517  
517  
517  
565  
565  
565  
540  
682  
682  
682  
11  
V130LA5P  
P1305  
10  
14  
20  
20  
7
20  
38  
70  
70  
12  
22  
42  
75  
13  
V130LA10AP  
V130LA20AP  
V130LA20BP  
V140LA2P  
P130L10  
P130L20  
P130L20B  
P1402  
V140LA5P  
P1405  
10  
14  
20  
7
V140LA10AP  
V140LA20AP  
V150LA1P  
P140L10  
P140L20  
P1501  
V150LA2P  
P1502  
7
13  
V150LA5P  
P1505  
10  
14  
20  
20  
7
25  
45  
80  
80  
15  
V150LA10AP  
V150LA20AP  
V150LA20BP  
V175LA2P  
P150L10  
P150L20  
P150L20B  
P1752  
V175LA5P  
P1755  
10  
14  
20  
7
30  
55  
90  
20  
35  
70  
122  
21  
21  
40  
72  
130  
130  
23  
23  
45  
75  
140  
140  
25  
25  
46  
77  
165  
25  
48  
80  
150  
27  
51  
85  
V175LA10AP  
V175LA20AP  
V230LA4P  
P175L10  
P175L20  
P2304  
V230LA10P  
V230LA20AP  
V230LA40AP  
V250LA2P  
P230L  
10  
14  
20  
7
P230L20  
P230L40  
P2502  
V250LA4P  
P2504  
7
90  
V250LA10P  
V250LA20AP  
V250LA40AP  
V250LA40BP  
V275LA2P  
P250L  
10  
14  
20  
20  
7
220  
500  
1000  
1000  
80  
P250L20  
P250L40  
P250L40B  
P2752  
V275LA4P  
P2754  
7
80  
V275LA10P  
V275LA20AP  
V275LA40AP  
V275LA40BP  
V300LA2P  
P275L  
10  
14  
20  
20  
7
200  
450  
900  
900  
70  
P275L20  
P275L40  
P275L40B  
P3002  
50  
100  
100  
10  
10  
25  
50  
100  
10  
25  
50  
V300LA4P  
P3004  
7
70  
V300LA10P  
V300LA20AP  
V300LA40AP  
V320LA7P  
P300L  
10  
14  
20  
7
180  
400  
800  
65  
170  
380  
750  
60  
P300L20  
P300L40  
P3207  
V320LA10P  
V320LA20AP  
V320LA40BP  
V385LA7P  
P320L  
10  
14  
20  
7
P320L20  
P320L40  
P3857  
100  
10  
25  
V385LA10P  
V385LA20AP  
P385L  
P385L20  
10  
14  
160  
360  
50  
©2010 Littelfuse, Inc.  
Specifications are subject to change without notice.  
Please refer to www.littelfuse.com/series/la.html for current information.  
LAVaristor Series  
Revision: August 4, 2010  
Varistor Products  
Radial Lead Varistors > LA Series  
LA Series Ratings & Specifications (Continued...)  
Maximum Rating (85°C)  
Continuous Transient  
Specifications (25°C)  
Varistor  
Maximum  
Clamping  
Voltage  
Typical  
Capaci-  
tance f =  
1MHz  
Voltage at  
1mA  
Peak  
Model Size  
Disc Dia.  
(mm)  
Energy 10  
x 1000μs  
Part  
Number  
VRMS  
VDC  
Current 8  
Branding  
DCTest  
8 x 20 μs  
x 20μs  
Current  
VNOM VNOM  
VM(AC)  
VM(DC)  
WTM  
ITM  
VC  
IPK  
C
Min  
(V)  
Max  
(V)  
(V)  
385  
420  
420  
420  
420  
460  
460  
460  
460  
480  
480  
480  
480  
510  
510  
510  
575  
575  
575  
625  
625  
625  
680  
680  
680  
660  
660  
660  
1000  
1000  
(V)  
505  
560  
560  
560  
560  
615  
615  
615  
615  
640  
640  
640  
640  
675  
675  
675  
730  
730  
730  
825  
825  
825  
875  
875  
875  
850  
850  
850  
1200  
1200  
(J)  
160  
30  
55  
90  
160  
37  
56  
100  
170  
35  
(A)  
(V)  
(A)  
(pF)  
700  
55  
140  
300  
600  
55  
120  
280  
560  
50  
120  
270  
550  
100  
250  
500  
90  
220  
450  
80  
210  
425  
65  
190  
380  
70  
200  
400  
130  
250  
V385LA40BP  
V420LA7P  
P385L40  
P4207  
20  
7
6500  
1200  
2500  
4500  
6500  
1200  
2500  
4500  
6500  
1200  
2500  
4500  
6500  
2500  
4500  
6500  
2500  
4500  
6500  
2500  
4500  
6500  
2500  
4500  
6500  
2500  
4500  
6500  
4500  
6500  
558  
610  
610  
610  
610  
640  
640  
640  
640  
670  
670  
670  
670  
735  
735  
735  
805  
805  
805  
900  
900  
900  
990  
990  
990  
940  
940  
940  
682  
748  
748  
748  
720  
790  
790  
790  
756  
825  
825  
825  
790  
910  
910  
860  
1025 100  
1120  
1120  
1120  
10  
25  
50  
V420LA10P  
V420LA20AP  
V420LA40BP  
V460LA7P  
P420L  
10  
14  
20  
7
P420L20  
P420L40  
P4607  
1060 100  
1190  
1190  
1190  
10  
25  
50  
V460LA10P  
V460LA20AP  
V460LA40BP  
V480LA7P  
P460L  
10  
14  
20  
7
P460L20  
P460L40  
P4807  
1110 100  
1240  
1240  
1240  
10  
25  
50  
V480LA10P  
V480LA40AP  
V480LA80BP  
V510LA10P  
P480L  
10  
14  
20  
10  
14  
20  
10  
14  
20  
10  
14  
20  
10  
14  
20  
10  
14  
20  
14  
20  
60  
P480L40  
P480L80  
P510L  
P510L40  
P510L80  
P575L  
P575L40  
P575L80  
P625L  
P625L40  
P625L80  
P680L  
P680L80  
P680L100  
P660L  
P660L50  
P660L100  
P1000L8  
P1000L16  
105  
180  
63  
110  
190  
65  
120  
220  
67  
125  
230  
75  
145  
260  
70  
140  
250  
220  
360  
1160 100  
1350  
1350  
25  
50  
V510LA40AP  
V510LA80BP  
V575LA10P  
V575LA40AP  
V575LA80BP  
V625LA10P  
V625LA40AP  
V625LA80BP  
V680LA10P  
V680LA80AP  
V680LA100BP  
V660LA10P  
V660LA50AP  
V660LA100BP  
V1000LA80AP  
V1000LA160BP  
1280 100  
1000 1500  
1000 1500  
25  
50  
960  
1410 100  
1100 1650  
1100 1650  
25  
50  
1100 1650 100  
1240 1875  
1240 1875  
25  
50  
1130 1700 100  
1210 1820  
1210 1820  
25  
50  
1100 1650 100  
1425 1800 2700 50  
1425 1600 2420 100  
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.  
Phenolic Coating Option -- LA SeriesVaristors for Hi-Temperature Operating Conditions:  
•
•
•
•
•
•
Phenolic–coated LA Series devices are available with improved maximum operating maximum temperature 125°C.  
These devices also have improved temperature cycling performance capability.  
Ratings and Specifications are as per standard LA Series except Hi–Pot Encapsulation (Isolation Voltage Capability) = 500V.  
These devices are not UL, CSA, VDE or CECC certified.  
To order: add X1347 to end of part number (e.g. V230LA20APX1347)  
Product Marking:  
LF 9  
P175P10  
YYWW  
Lead-Free,  
Halogen-Free  
& RoHS Compliant  
Indicator  
Pholenic Coated  
Option  
Identifier  
©2010 Littelfuse, Inc.  
LAVaristor Series  
Specifications are subject to change without notice.  
Please refer to www.littelfuse.com/series/la.html for current information.  
Revision: August 4, 2010  
Varistor Products  
Radial Lead Varistors > LA Series  
Power Dissipation Ratings  
Peak Pulse CurrentTestWaveform  
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 SpecificationsTable for the specific  
device.The operating values of a MOV need to be derated  
at high temperatures as shown in the diagram below.  
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  
O
T
TIME  
1
Current Energy and Power Derating Curve  
T
1
T
2
Figure 2  
01 = Virtual Origin of Wave  
T =Time from 10% to 90% of Peak  
T1 = RiseTime = 1.25 xT  
T2 = DecayTime  
Example - For an 8/20 μs Current Waveform:  
8μs =T1 = RiseTime  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
20μs =T2 = DecayTime  
-55  
50  
60  
70  
80  
90 100 110 120 130 140 150  
o
AMBIENT TEMPERATURE ( C)  
Figure 1  
©2010 Littelfuse, Inc.  
LAVaristor Series  
Specifications are subject to change without notice.  
Please refer to www.littelfuse.com/series/la.html for current information.  
Revision: August 4, 2010  
Varistor Products  
Radial Lead Varistors > LA Series  
TransientV-I Characteristics Curves  
Pulse Rating Curves  
Maximum ClampingVoltage for 7mm Parts  
Repetitive Surge Capability for 7mm Parts  
V130LA1(P) -V480LA7(P)  
V130LA1(P) -V300LA2(P)  
6,000  
5,000  
2,000  
MAXIMUM CLAMPING VOLTAGE  
MODEL SIZE 7mm  
1
MODEL SIZE 7mm  
V130LA1(P) - V480LA7(P)  
4,000  
1,000  
500  
130 TO 300V  
RATING  
M(AC)  
2
o
o
T
= -55 C TO 85 C  
A
3,000  
2,000  
3
10  
10  
4
10  
10  
10  
200  
100  
50  
5
2
10  
6
V275LA2(P)  
V250LA2(P)  
1,000  
900  
800  
700  
600  
500  
400  
V300LA2(P)  
20  
10  
5
INDEFINITE  
V150LA1(P)  
V130LA1(P)  
300  
200  
2
1
20  
100  
1,000  
IMPULSE DURATION (μs)  
10,000  
-3  
-2  
-1  
0
1
2
3
4
10  
10  
10  
10  
10  
10  
10  
10  
Figure 4  
Figure 3  
PEAK AMPERES (A)  
V130LA2(P) -V300LA4(P)  
4,000  
MAXIMUM CLAMPING VOLTAGE  
MODEL SIZE 7mm  
3,000  
2,000  
130 TO 300V  
RATING  
M(AC)  
o
o
T
= -55 C TO 85 C  
V300LA4(P)  
V275LA4(P)  
V250LA4(P)  
A
V230LA4(P)  
1,000  
900  
800  
700  
600  
500  
400  
300  
V175LA2(P)  
200  
100  
V150LA2(P)  
V140LA2(P)  
V130LA2(P)  
-3  
-2  
-1  
0
1
2
3
4
10  
10  
10  
10  
10  
10  
10  
10  
Figure 5  
PEAK AMPERES (A)  
V320LA7(P) -V480LA7(P)  
MAXIMUM CLAMPING VOLTAGE  
MODEL SIZE 7mm  
5,000  
320 TO 480V  
RATING  
M(AC)  
o
o
T
= -55 C TO 85 C  
A
3,000  
2,000  
V460LA7(P)  
V480LA7(P)  
1,000  
500  
V420LA7(P)  
V385LA7(P)  
V320LA7(P)  
-3  
-2  
-1  
0
1
2
3
4
10  
10  
10  
10  
10  
10  
10  
10  
Figure 6  
PEAK AMPERES (A)  
©2010 Littelfuse, Inc.  
Specifications are subject to change without notice.  
Please refer to www.littelfuse.com/series/la.html for current information.  
LAVaristor Series  
Revision: August 4, 2010  
Varistor Products  
Radial Lead Varistors > LA Series  
TransientV-I Characteristics Curves (Continued...)  
Maximum ClampingVoltage for 10mm Parts  
Pulse Rating Curves (Continued...)  
Repetitive Surge Capability for 10mm Parts  
V130LA5(P) -V420LA10(P)  
V130LA5(P) -V680LA10(P)  
6,000  
5,000  
5,000  
MAXIMUM CLAMPING VOLTAGE  
MODEL SIZE 10mm  
MODEL SIZE 10mm  
V130LA5(P) - V680LA10(P)  
1
4,000  
130 TO 420V  
o
RATING  
2,000  
M(AC)  
o
2
T
= -55 C TO 85 C  
3,000  
2,000  
A
2
10  
10  
1,000  
500  
3
10  
4
10  
5
V275LA10(P)  
V250LA10(P)  
V230LA10(P)  
10  
6
10  
200  
100  
50  
1,000  
900  
800  
700  
600  
500  
400  
V420LA10(P)  
V175LA5(P)  
20  
INDEFINITE  
10  
5
V150LA5(P)  
V140LA5(P)  
300  
200  
V130LA5(P)  
2
20  
-3  
-2  
-1  
0
1
2
3
4
100  
1,000  
IMPULSE DURATION (μs)  
10,000  
10  
10  
10  
10  
10  
10  
10  
10  
Figure 8  
Figure 7  
PEAK AMPERES (A)  
V300LA10(P) -V680LA10(P)  
MAXIMUM CLAMPING VOLTAGE  
MODEL SIZE 10mm  
5,000  
300 TO 680V  
RATING  
V680LA10(P)  
M(AC)  
o
o
T
= -55 C TO 85 C  
A
3,000  
2,000  
V625LA10(P)  
V660LA10(P)  
V300LA10(P)  
V320LA10(P)  
1,000  
V575LA10(P)  
V510LA10(P)  
V480LA10(P)/  
V460LA10(P)  
V385LA10(P)  
500  
-3  
-2  
-1  
0
1
2
3
4
10  
10  
10  
10  
10  
10  
10  
10  
Figure 9  
PEAK AMPERES (A)  
©2010 Littelfuse, Inc.  
Specifications are subject to change without notice.  
Please refer to www.littelfuse.com/series/la.html for current information.  
LAVaristor Series  
Revision: August 4, 2010  
Varistor Products  
Radial Lead Varistors > LA Series  
TransientV-I Characteristics Curves (Continued...)  
Pulse Rating Curves (Continued...)  
Maximum ClampingVoltage for 14mm Parts  
Repetitive Surge Capability for 14mm Parts  
V130LA10A(P) -V320LA20A  
V130LA10A(P) -V320LA20A(P)  
6,000  
5,000  
MAXIMUM CLAMPING VOLTAGE  
5,000  
1
MODEL SIZE 14mm  
V130LA10A(P) - V320LA20A(P)  
MODEL SIZE 14mm  
4,000  
2
130 TO 320V  
RATING  
2,000  
M(AC)  
o
o
T
= -55 C TO 85 C  
A
2
10  
3
3,000  
2,000  
10  
1,000  
500  
10  
4
10  
5
V275LA20A(P)  
V250LA20A(P)  
V230LA20A(P)  
10  
6
10  
V300LA20A(P)  
V320LA20A(P)  
200  
100  
50  
1,000  
900  
800  
700  
600  
20  
500  
400  
INDEFINITE  
10  
5
V175LA10A(P)  
V150LA10A(P)  
300  
200  
V140LA10A(P)  
V130LA10A(P)  
2
20  
-3  
-2  
-1  
0
1
2
3
4
100  
1,000  
10,000  
10  
10  
10  
10  
10  
10  
10  
10  
IMPULSE DURATION (μs)  
PEAK AMPERES (A)  
Figure 10  
Figure 11  
V385LA20A(P) -V1000LA80A(P)  
V385LA20A(P)V1000LA80A(P)  
5,000  
1
MAXIMUM CLAMPINGVOLTAGE  
5,000  
MODEL SIZE 14mm  
MODEL SIZE 14mm  
V1000LA80A(P)  
V680LA80A(P)  
2
V385LA20A(P) - V1000LA80A(P)  
385 TO 1000V  
RATING  
2,000  
M(AC)  
o
o
T
= -55 C TO 85 C  
A
2
10  
3
10  
3,000  
2,000  
1,000  
10  
4
V660LA50A(P)  
V625LA40A(P)  
10  
500  
5
10  
6
10  
200  
100  
50  
1,000  
20  
700  
500  
V575LA40A(P)  
V510LA40A(P)  
V480LA40A(P)/V460LA20A(P)  
V420LA20A(P)  
INDEFINITE  
10  
5
V385LA20A(P)  
2
300  
20  
100  
1,000  
10,000  
-4  
10  
-3  
-2  
10  
-1  
10  
0
1
2
3
4
10  
10  
10  
10  
10  
10  
IMPULSE DURATION (μs)  
PEAK AMPERES (A)  
Figure 12  
Figure 13  
©2010 Littelfuse, Inc.  
LAVaristor Series  
Specifications are subject to change without notice.  
Please refer to www.littelfuse.com/series/la.html for current information.  
Revision: August 4, 2010  
Varistor Products  
Radial Lead Varistors > LA Series  
TransientV-I Characteristics Curves (Continued...)  
Pulse Rating Curves (Continued...)  
Maximum ClampingVoltage for 20mm Parts  
V130LA20A(P) -V275LA40A(P)  
V300LA40A -V1000LA160B  
5,000  
3,000  
MAXIMUM CLAMPINGVOLTAGE  
MODEL SIZE 20mm  
MAXIMUM CLAMPINGVOLTAGE  
MODEL SIZE 20mm  
V1000LA160B(P)  
300 TO 1000V  
RATING  
2,000  
130 TO 275V RATING  
M(AC)  
M(AC)  
o
o
o
o
T = -55 C TO 85 C  
A
T
= -55 C TO 85 C  
A
3,000  
2,000  
V680LA100B(P)  
V625LA80B(P)  
V660LA100B(P)  
1,000  
900  
800  
700  
600  
V575LA80B(P)  
V510LA80B(P)  
V480LA80B(P)/  
V460LA40B(P)  
V275LA40A(P)  
V250LA40A(P)  
500  
400  
300  
1,000  
V175LA20A(P)  
V420LA40B(P)  
V385LA40B(P)  
V320LA40B(P)  
V300LA40A(P)  
V150LA20A(P)  
V130LA20A(P)  
500  
200  
Figure 1140  
-3  
-2  
10  
-1  
10  
0
1
2
3
4
10  
10  
10  
10  
10  
10  
-3  
-2  
-1  
10  
0
1
2
3
4
10  
10  
10  
10  
10  
10  
PEAK AMPERES (A)  
Figure 15  
PEAK AMPERES (A)  
V130LA20B(P) -V275LA40(P)  
Repetitive Surge Capability for 20mm Parts  
3,000  
MAXIMUM CLAMPINGVOLTAGE  
MODEL SIZE 20mm  
V130LA20A(P) -V320LA40B(P)  
130 TO 275V  
RATING  
2,000  
M(AC)  
o
o
T
= -55 C TO 85 C  
10,000  
A
1
MODEL SIZE 20mm  
2
5,000  
V130LA20A(P) - V320LA40B(P)  
10  
2
10  
3
2,000  
1,000  
500  
10  
1,000  
900  
800  
700  
600  
4
10  
5
10  
6
10  
V275LA40B(P)  
V250LA40B(P)  
200  
100  
50  
500  
400  
300  
V150LA20B(P)  
20  
10  
5
INDEFINITE  
V130LA20B(P)  
-2  
200  
10  
-3  
-1  
10  
0
1
2
3
4
10  
10  
10  
10  
10  
10  
PEAK AMPERES (A)  
Figure 16  
2
1
V130LA20A(P) -V275LA40A(P)  
20  
100  
1,000  
10,000  
IMPULSE DURATION (μs)  
Figure 18  
3,000  
MAXIMUM CLAMPINGVOLTAGE  
MODEL SIZE 20mm  
140 TO 230V RATING  
V385LA40B(P) -V1000LA160B(P)  
M(AC)  
2,000  
1,000  
10,000  
1
o
o
T
= -55 C TO 85 C  
A
MODEL SIZE 20mm  
2
5,000  
10  
V385LA40B(P) - V1000LA160B(P)  
2
10  
3
2,000  
1,000  
500  
10  
4
10  
5
10  
6
V230LA40A(P)  
10  
200  
100  
50  
500  
300  
V140LA20A(P)  
20  
10  
5
INDEFINITE  
200  
-3  
10  
-2  
10  
-1  
10  
0
1
2
3
4
10  
10  
10  
10  
10  
Figure 17  
PEAK AMPERES (A)  
2
1
20  
100  
1,000  
10,000  
Figure 19  
IMPULSE DURATION (μs)  
NOTE: If pulse ratings are exceeded, a shift of VN(DC) (at specified current) of more than +/-10% could result. This type of shift, which normally results in a decrease of VN(DC), may result in the  
device not meeting the original published specifications, but does not prevent the device from continuing to function, and to provide ample protection.  
©2010 Littelfuse, Inc.  
LAVaristor Series  
Specifications are subject to change without notice.  
Revision: August 4, 2010  
Please refer to www.littelfuse.com/series/la.html for current information.  
Varistor Products  
Radial Lead Varistors > LA Series  
Wave Solder Profile  
Non Lead–free Profile  
Lead–free Profile  
300  
250  
200  
150  
100  
50  
300  
Maximum Wave 260C  
Maximum Wave 240C  
250  
200  
150  
100  
50  
0
0
0
0.5  
1
1.5  
2
2.5  
3
3.5  
4
0
0.5  
1
1.5  
2
2.5  
3
3.5  
4
Figure 20  
Figure 21  
TIME(MINUTES)  
TIME(MINUTES)  
Physical Specifications  
Environmental Specifications  
Operating Ambient  
Lead Material  
Tin–Coated Copper Wire  
-55°C to +85°C  
Temperature Range  
Soldering  
Characteristics  
Solderability per MIL–STD–202,  
Method 208E  
StorageTemperature Range  
-55°C to +125°C  
+85°C, 85% RH, 1000 hours  
Cured, flame retardant epoxy polymer  
meets UL94V–0 requirements  
Insulating Material  
Device Labeling  
Humidity Aging  
+/-10% typical voltage change  
Marked with LF, voltage, UL/CSA logos,  
and date code  
+85°C to -40°C 5 times  
+/-10% typical voltage change  
Thermal Shock  
Solvent Resistance  
Moisture Sensitivity  
MIL–STD–202, Method 215F  
Level 1, J–STD–020C  
©2010 Littelfuse, Inc.  
LAVaristor Series  
Specifications are subject to change without notice.  
Please refer to www.littelfuse.com/series/la.html for current information.  
Revision: August 4, 2010  
Varistor Products  
Radial Lead Varistors > LA Series  
Product Dimensions (mm)  
SEATING  
PLANE  
*
ATRIM  
LTRIM  
CRIMPED AND TRIMMED LEAD  
Crimped leads are standard on LA types supplied in tape and reel  
and are denoted by the model letter "T." Model letter "S" denotes  
straight leads and letter "U" denotes special under-crimped leads.  
*Seating plane interpretation per IEC-717  
7mm Size  
10mm Size  
14mm Size  
20mm Size  
VRMS  
Dimension  
Voltage  
Model  
Min.  
mm (in)  
Max.  
mm (in)  
Min.  
mm (in)  
Max.  
mm (in)  
Min.  
mm (in)  
Max.  
mm (in)  
Min.  
mm (in)  
Max.  
mm (in)  
V130LA-  
V320LA  
V385LA-  
V1000LA  
All  
-
-
-
-
-
12  
-
-
-
-
-
16  
(0.630)  
17  
-
-
-
-
-
20  
-
-
-
-
-
26.5  
(1.043)  
28  
(0.472)  
13  
(0.787)  
20.5  
A
(0.0512)  
9 (0.354)  
(0.689)  
12.5 (0.492)  
(0.807)  
17 (0.669)  
(1.102)  
23 (0.906)  
ØD  
e
6.5 (0.256)  
(Note 2)  
8.5  
(Note 2)  
All  
4 (0.157)  
6 (0.236)  
6.5 (0.256)  
8.5 (0.335)  
6.5 (0.256)  
8.5 (0.335)  
V130LA-  
V320LA  
V385LA-  
V1000LA  
V130LA-  
V320LA  
V385LA-  
V510LA  
V550LA-  
V680LA  
V1000LA  
1.5  
3.5  
(0.138)  
5.5  
1.5  
3.5  
(0.138)  
5.5  
1.5  
3.5  
(0.138)  
5.5  
1.5  
3.5  
(0.138)  
5.5  
(0.059)  
(0.059)  
(0.059)  
(0.059)  
e1  
2.5  
2.5  
2.5  
2.5  
(0.098)  
(0.217)  
5.6  
(0.098)  
(0.217)  
5.6  
(0.098)  
(0.217)  
5.6  
(0.098)  
(0.217)  
5.6  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
(0.220)  
7.3  
(0.220)  
7.3  
(0.220)  
7.3  
(0.220)  
7.3  
E
(0.287)  
8.3  
(0.287)  
8.3  
(0.287)  
8.3  
(0.287)  
8.3  
(0.327)  
-
(0.327)  
-
(0.327)  
10.8 (0.425)  
(0.327)  
10.8 (0.425)  
All  
0.585  
0.685  
0.76 (0.030) 0.86 (0.034)  
Øb  
0.76 (0.030) 0.86 (0.034) 0.76 (0.030) 0.86 (0.034)  
22.5 (0.886)  
(Note 3)  
(0.023)  
(0.027)  
(Note 2)  
(Note 2)  
A
All  
All  
-
15 (0.591)  
-
19.5 (0.768)  
-
-
29.0 (1.142)  
TRIM  
(NOTE 4)  
LTRIM  
2.41 (0.095) 4.69 (0.185) 2.41 (0.095) 4.69 (0.185) 2.41 (0.095) 4.69 (0.185) 2.41 (0.095) 4.69 (0.185)  
Notes :  
1. Dimensions in millimeters, (inches) in parentheses.  
2. 10mm (9mm Min. & 11mm Max.) ALSO AVAILABLE; see additional lead style options  
3. 1000V parts supplied with lead wire of diameter 1.00 -/+ 0.05 (0.039 -/+ 0.002)  
4. 'A' Max. for V1000LC80A (P) = 24.00 (0.945”)  
©2010 Littelfuse, Inc.  
LAVaristor Series  
Specifications are subject to change without notice.  
Please refer to www.littelfuse.com/series/la.html for current information.  
Revision: August 4, 2010  
Varistor Products  
Radial Lead Varistors > LA Series  
Tape and Reel Specifications  
(Dimensions presented on following page.)  
7mm Devices  
10, 14 and 20mm Devices  
CRIMPED LEADS "LT"  
CRIMPED LEADS "LT"  
P
E
P
P2  
E
P2  
DP  
DP  
DP  
DP  
DH  
DH  
DH  
DH  
C
SEATING  
PLANE  
C
SEATING  
PLANE  
H1  
H1  
W0 W2 W1  
W0 W2 W1  
H0  
Db  
H0  
Db  
W
W
DD0  
DD0  
t
P1  
P1  
F
P1  
t
F
P0  
STRAIGHT LEADS "LS"  
STRAIGHT LEADS "LS"  
P
E
P
E
P2  
P2  
DP  
DP  
DP  
DP  
DH  
DH  
DH  
DH  
H1  
H1  
W0  
W2 W1  
W0 W2 W1  
H
H
Db  
Db  
W
W
DD0  
DD0  
t
P1  
P0  
F
t
P1  
F
P0  
UNDER-CRIMPED LEADS "LU"  
UNDER-CRIMPED LEADS "LU"  
P
E
P
E
P2  
P2  
DP  
DP  
DP  
DP  
DH  
DH  
DH  
DH  
U
U
H1  
H1  
W0 W2 W1  
W0  
W2 W1  
Ho  
Ho  
Db  
Db  
W
W
DD0  
DD0  
t
P1  
P1  
P0  
t
F
F
P0  
©2010 Littelfuse, Inc.  
Specifications are subject to change without notice.  
Please refer to www.littelfuse.com/series/la.html for current information.  
LAVaristor Series  
Revision: August 4, 2010  
Varistor Products  
Radial Lead Varistors > LA Series  
Tape and Reel Specifications (continued)  
•
•
•
•
•
•
Conforms to ANSI and EIA specifications  
Can be supplied to IEC Publication 286-2  
Radial devices on tape are supplied with crimped leads, straight leads, or under-crimped leads  
7mm parts are available on tape and reel up to 480 VAC only  
10mm parts are available on tape and reel up to 510 VAC only  
14mm and 20mm parts are available on tape and reel up to 550 VAC only  
Model Size  
Symbol  
Description  
Pitch of Component  
7mm  
10mm  
14mm  
20mm  
P
P0  
P1  
P2  
F
12.7 +/- 1.0  
25.4 +/- 1.0  
25.4 +/- 1.0  
25.4 +/- 1.0  
Feed Hole Pitch  
12.7 +/- 0.2  
3.85 +/- 0.7  
6.35 +/- 0.7  
5.0 +/- 0.8  
12.7 +/- 0.2  
8.85 +/- 0.7  
12.7 +/- 0.7  
7.5 +/-0.8  
12.7 +/- 0.2  
8.85 +/- 0.7  
12.7 +/- 0.7  
7.5 +/- 0.8  
12.7 +/- 0.2  
8.85 +/- 0.7  
12.7 +/- 0.7  
7.5 +/- 0.8  
Feed Hole Center to Pitch  
Hole Center to Component Center  
Lead to Lead Distance  
Component Alignment  
Tape Width  
h
2.0 Max  
2.0 Max  
2.0 Max  
2.0 Max  
W
W0  
W1  
W2  
18.0 +1.0 / -0.5  
12.0 +/- 0.3  
9.0 +0.75 / -0.50  
0.5 Max  
18.0 +1.0 / -0.5  
12.0 +/- 0.3  
18.0 +1.0 / -0.5  
12.0 +/- 0.3  
9.0 +0.75 / -0.50  
0.5 Max  
18.0 +1.0 / -0.5  
12.0 +/- 0.3  
9.0 +0.75 / -0.50  
0.5 Max  
Hold DownTape Width  
Hole Position  
9.0 +0.75 / -0.50  
0.5 Max  
Hold DownTape Position  
Height fromTape Center to  
Component Base  
H
18.0 +2.0 / -0.0  
18.0 +2.0 / -0.0  
18.0 +2.0 / -0.0  
18.0 +2.0 / -0.0  
H0  
H1  
D0  
T
Seating Plane Height  
Component Height  
Feed Hole Diameter  
TotalTapeThickness  
Under-crimp Width  
Component Alignment  
16.0 +/- 0.5  
32.0 Max  
16.0 +/- 0.5  
36.0 Max  
16.0 +/- 0.5  
40.0 Max  
16.0 +/- 0.5  
46.5 Max  
4.0 +/- 0.2  
0.7 +/- 0.2  
8.0 Max  
4.0 +/- 0.2  
0.7 +/- 0.2  
8.0 Max  
4.0 +/- 0.2  
0.7 +/- 0.2  
8.0 Max  
4.0 +/- 0.2  
0.7 +/- 0.2  
8.0 Max  
U
P
3° Max 1.00mm  
3° Max 1.00mm  
3° Max 1.00mm  
3° Max  
NOTE: Dimensions are in mm.  
Standard Bulk Pack Quantity  
Standard Bulk Pack Quantity  
Varistor Model Size  
Varistor Voltage Model  
7mm  
10mm  
1000  
1000  
1000  
1000  
1000  
N/A  
14mm  
700  
20mm  
130-275  
300-460  
510-625  
660  
1500  
1500  
1500  
N/A  
500  
400  
400  
400  
300  
200  
600  
500  
500  
680  
N/A  
400  
1000  
N/A  
300  
©2010 Littelfuse, Inc.  
LAVaristor Series  
Specifications are subject to change without notice.  
Please refer to www.littelfuse.com/series/la.html for current information.  
Revision: August 4, 2010  
Varistor Products  
Radial Lead Varistors > LA Series  
Part Numbering System  
OPTION CODES  
BASE PART CODES  
(See notes below)  
(See Ratings & Specifications tables and notes below)  
P
XXXXX  
V XXXX LA XX X  
See OPTIONS CODES notes below  
For “VARISTOR”  
V
M(AC)  
(Three or four digits -- 130V to 1,000V)  
For standard parts, use the BASE PART designator only.  
For parts with non-standard options (such as additional form, packaging  
and lead space options), use BASE PART + OPTION CODE.  
OPTION CODE items are subject to availability and minimum order  
requirements. Please contact a Littelfuse products representative for  
additional information or questions  
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)  
CLAMP VOLTAGE VARIANT  
(One digit, where applicable)  
LEAD-FREE, HALOGEN-FREE AND  
RoHS COMPLIANT INDICATOR  
Ordering Notes:  
BASE PART CODES:  
OPTION CODES:  
X10: 10mm lead spacing option --  
Series + Packaging / Lead Style Designators:  
For 10 (-/+1) mm lead spacing (available on 20mm  
diameter models only), append standard model  
Ordering examples:  
BASE PART number with "X10." Example:  
Straight  
Lead  
Bulk Pack  
(standard)  
Straight  
Lead  
Tape &  
Reel  
Crimped  
Lead  
Tape &  
Reel  
Crimped &  
Trimmed  
Lead  
Under-  
Crimp  
Lead  
Tape &  
Reel  
Standard Model  
Order As  
Bulk Pack  
V130LA20AP  
V130LA20APX10  
V130LA2P V130LS2P  
V130LT2P  
V130LC2P V130LU2P  
X2855: Nickel Barrier coated wire option --  
Crimped leads are standard on LA Series varistors supplied in  
tape and reel, denoted with "LT." For crimped leads without  
trimming and any varitions other than that described above,  
please contact Littelfuse.  
All standard parts useTin–coated Copper wire. Nickel  
Barrier coated wire is available as an option, consisting  
of Copper wire with a flashing of Nickel followed by  
a top coating ofTin. To order append standard model  
BASE PART number with "X2855." Example:  
Littelfuse LA Series varistors are shipped standard in bulk pack  
with straight leads and lead spacing outlined in the Package  
Dimensions section of this data sheet. Contact your Littelfuse  
sales representative to discuss non-standard options.  
Standard Model  
Order As  
V130LA20AP  
V130LA20APX2855  
X1347: Hi-Temperature phenolic coating option --  
Phenolic Coated LA Series devices are available with improved  
maximum operating maximum temperature of 125°C.  
To order, add X1347 to end of part number  
(Example: V230LA20APX1347).  
For additional information please refer to the section labeled  
"Phenolic Coating Option" on the third page of this document  
under the "Electrical Characteristics" table.  
©2010 Littelfuse, Inc.  
LAVaristor Series  
Specifications are subject to change without notice.  
Please refer to www.littelfuse.com/series/la.html for current information.  
Revision: August 4, 2010  

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