Page 1
LA Varistor Series
Varistor Products
50
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Line Voltage Operation, Radial Lead
The LA Series of transient voltage surge suppressors are radial-lead
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.
Features
• Energy Absorption Capability (WTM) ....................Up to 360J
• Wide Operating Voltage Range
V
M(AC)RMS
.....................................130V to 1000V
• No Derating Up to 85oC Ambient
• Available in Tape and Reel or Bulk Pack
AGENCY APPROVALS: Recognized under the components program of
Underwriters Laboratories. Certified by CSA, VDE and CECC.
AGENCY FILE NUMBERS: UL E75961, E56529, E135010; CSA
LR91788; VDE 116895E; CECC 42201-006.
ALSO SEE LITTELFUSE ULTRAMOV
™
AND C-III VARISTOR SERIES
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V
DE
®
®
Page 2
2
VARISTOR
PRODUCTS
LA Varistor Series
Varistor Products
Line Voltage Operation, Radial Lead
51
www.littelfuse.com
Absolute Maximum Ratings
For ratings of individual members of a series, see Device Ratings and Specifications chart
Continuous:
Steady State Applied Voltage:
AC Voltage Range (V
M(AC)RMS
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 to 1000 V
DC Voltage Range (V
M(DC)
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175 to 1200 V
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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 to 360 J
Operating Ambient Temperature Range (TA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 85
0
C
Storage Temperature Range (T
STG
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 125
0
C
Temperature Coefficient (αV) of Clamping Voltage (VC) at Specified Test Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <0.01 %/0C
Hi-Pot Encapsulation (Isolation Voltage Capability) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2500 V
(Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301)
Insulation Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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.
Device Ratings and Specifications
LA SERIES UNITS
Next
Previous
MAXIMUM RATING (85
CONTINUOUS TRANSIENT
MODEL
SIZE
PA RT
NUMBER
V130LA1 7 1301 130 175 11 1200 184 255 390 10 180
V130LA2 7 1302 130 175 11 1200 184 228 340 10 180
V130LA5 10 1305 130 175 20 2500 184 228 340 25 450
V130LA10A 14 130L10 130 175 38 4500 184 228 340 50 1000
V130LA20A 20 130L20 130 175 70 6500 184 228 340 100 1900
V130LA20B 20 130L20B 130 175 70 6500 184 220 325 100 1900
V140LA2 7 1402 140 180 12 1200 198 242 360 10 160
V140LA5 10 1405 140 180 22 2500 198 242 360 25 400
V140LA10A 14 140L10 140 180 42 4500 198 242 360 50 900
V140LA20A 20 140L20 140 180 75 6500 198 242 340 100 1750
V150LA1 7 1501 150 200 13 1200 212 284 430 10 150
V150LA2 7 1502 150 200 13 1200 212 268 395 10 150
V150LA5 10 1505 150 200 25 2500 212 268 395 25 360
V150LA10A 14 150L10 150 200 45 4500 212 268 395 50 800
V150LA20A 20 150L20 150 200 80 6500 212 268 395 100 1600
V150LA20B 20 150L20B 150 200 80 6500 212 243 360 100 1600
V175LA2 7 1752 175 225 15 1200 247 303 455 10 130
V175LA5 10 1755 175 225 30 2500 247 303 455 25 350
V175LA10A 14 175L10 175 225 55 4500 247 303 455 50 700
V175LA20A 20 175L20 175 225 90 6500 247 303 455 100 1400
V230LA4 7 2304 230 300 20 1200 324 396 595 10 100
V230LA10 10 230L 230 300 35 2500 324 396 595 25 250
V230LA20A 14 230L20 230 300 70 4500 324 396 595 50 550
V230LA40A 20 230L40 230 300 122 6500 324 396 595 100 1100
DISC
DIA.
(mm)
DEVICE
MODEL
NUMBER
BRAND-
ING
RMS
V
M(AC)VM(DC)
(V) (V) (J) (A) (V) (V) (A) (pF)
V
DC
ENERGY
10 x 1000µs
W
o
C) SPECIFICATIONS (25oC)
TM
PEAK
CURRENT
8 x 20µs
I
TM
VARISTOR VOLT-
AGE AT 1mA DC
TEST CURRENT
NOM
V
NOM
MAX V
V
MIN
MAXIMUM
CLAMPING
VO LTAGE
8 x 20µs
CIPK
TYPICAL
CAPACI-
TANCE
f = 1MHzV
C
Page 3
Varistor Products
V250LA2 7 2502 250 330 21 1200 354 473 730 10 90
V250LA4 7 2504 250 330 21 1200 354 429 650 10 90
V250LA10 10 250L 250 330 40 2500 354 429 650 25 220
V250LA20A 14 250L20 250 330 72 4500 354 429 650 50 500
V250LA40A 20 250L40 250 330 130 6500 354 429 650 100 1000
V250LA40B 20 250L40B 250 330 130 6500 354 413 620 100 1000
V275LA2 7 2752 275 369 23 1200 389 515 775 10 80
V275LA4 7 2754 275 369 23 1200 389 473 710 10 80
V275LA10 10 275L 275 369 45 2500 389 473 710 25 200
V275LA20A 14 275L20 275 369 75 4500 389 473 710 50 450
V275LA40A 20 275L40 275 369 140 6500 389 473 710 100 900
V275LA40B 20 275L40B 275 369 140 6500 389 453 680 100 900
V300LA2 7 3002 300 405 25 1200 420 565 870 10 70
V300LA4 7 3004 300 405 25 1200 420 517 775 10 70
V300LA10 10 300L 300 405 46 2500 420 517 775 25 180
V300LA20A 14 300L20 300 405 77 4500 420 517 775 50 400
V300LA40A 20 300L40 300 405 165 6500 420 517 775 100 800
V320LA7 7 3207 320 420 25 1200 462 565 850 10 65
V320LA10 10 320L 320 420 48 2500 462 565 850 25 170
V320LA20A 14 320L20 320 420 80 4500 462 565 850 50 380
V320LA40B 20 320L40 320 420 150 6500 462 540 810 100 750
V385LA7 7 3857 385 505 27 1200 558 682 1025 10 60
V385LA10 10 385L 385 505 51 2500 558 682 1025 25 160
V385LA20A 14 385L20 385 505 85 4500 558 682 1025 50 360
V385LA40B 20 385L40 385 505 160 6500 558 682 1025 100 700
V420LA7 7 4207 420 560 30 1200 610 748 1120 10 55
V420LA10 10 420L 420 560 55 2500 610 748 1120 25 140
V420LA20A 14 420L20 420 560 90 4500 610 748 1120 50 300
V420LA40B 20 420L40 420 560 160 6500 610 720 1060 100 600
V460LA7 7 4607 460 615 37 1200 702 858 1130 10 55
V480LA7 7 4807 480 640 35 1200 670 825 1240 10 50
V480LA10 10 480L 480 640 60 2500 670 825 1240 25 120
V480LA40A 14 480L40 480 640 105 4500 670 825 1240 50 270
V480LA80B 20 480L80 480 640 180 6500 670 790 1160 100 550
V510LA10 10 510L 510 675 63 2500 735 910 1350 25 100
V510LA40A 14 510L40 510 675 110 4500 735 910 1350 50 250
V510LA80B 20 510L80 510 675 190 6500 735 860 1280 100 500
V575LA10 10 575L 575 730 65 2500 805 1000 1500 25 90
V575LA40A 14 575L40 575 730 120 4500 805 1000 1500 50 220
V575LA80B 20 575L80 575 730 220 6500 805 960 1410 100 450
V625LA10 10 625L 625 825 67 2500 900 1100 1650 25 80
V625LA40A 14 625L40 625 825 125 4500 900 1100 1650 50 210
V625LA80B 20 625L80 625 825 230 6500 900 1100 1650 100 425
PART
NUMBER
MODEL
SIZE
DISC
DIA.
(mm)
DEVICE
MODEL
NUMBER
BRAND-
ING
MAXIMUM RATING (85
o
C) SPECIFICATIONS (25oC)
CONTINUOUS TRANSIENT
VARISTOR VOLT-
AGE AT 1mA DC
TEST CURRENT
MAXIMUM
CLAMPING
VOLTAGE
8 x 20µs
TYPICAL
CAPACI-
TANCE
f = 1MHzV
RMS
V
DC
ENERGY
10 x 1000µs
PEAK
CURRENT
8 x 20µs
V
M(AC)VM(DC)
W
TM
I
TM
V
NOM
MIN
V
NOM
MAX V
CIPK
C
(V) (V) (J) (A) (V) (V) (A) (pF)
Line V oltage Operation, Radial Lead
LA V aristor Series
Device Ratings and Specifications
52
(Continued)
www.littelfuse.com
Page 4
LA V aristor Series
V660LA10 10 660L 660 850 70 2500 940 1250 1650 25 70
V660LA50A 14 660L50 660 850 140 4500 940 1250 1650 50 200
V660LA100B 20 660L100 660 850 250 6500 940 1250 1650 100 400
V1000LA80A 14 1000L80 1000 1200 220 4500 1425 1800 2700 50 130
V1000LA160B 20 1000L160 1000 1200 360 6500 1425 1600 2420 100 250
NOTE: Average po wer dissipation of transients not to exceed 0.25W , 0.4W , 0.6W or 1W f or model sizes 7mm, 10mm, 14mm and 20mm, respectively.
PART
NUMBER
MODEL
SIZE
DISC
DIA.
(mm)
DEVICE
MODEL
NUMBER
BRAND-
ING
MAXIMUM RA TING (85
o
C) SPECIFICATIONS (25oC)
CONTINUOUS TRANSIENT
VARISTOR VOLT-
AGE AT 1mA DC
TEST CURRENT
MAXIMUM
CLAMPING
VOLTAGE
8 x 20µs
TYPICAL
CAPACI-
TANCE
f = 1MHzV
RMS
V
DC
ENERGY
10 x 1000µs
PEAK
CURRENT
8 x 20µs
V
M(AC)VM(DC)
W
TM
I
TM
V
NOM
MIN
V
NOM
MAX V
CIPK
C
(V) (V) (J) (A) (V) (V) (A) (pF)
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. CURRENT, ENERGY AND PO WER DERATING
CURVE
FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM
100
90
50
10
O
1
T
T
1
T
2
TIME
PERCENT OF PEAK VALUE
O1 = Virtual Origin of Wave
T = Time From 10% to 90% of Peak
T
1
= Virtual Front time = 1.25 • t
T2 = Virtual Time to Half Value (Impulse Duration)
Example: For an 8/20µs Current Wa veform:
8µs = T1 = Virtual Front Time
20µs = T2 = Virtual Time to Half Value
Varistor Products
Line Voltage Operation, Radial Lead
Device Ratings and Specifications
(Continued)
Power Dissipation Ratings
Should transients occur in rapid succession, the average power dissipation
is the energy (watt-seconds) per pulse times the number of pulses per
second.The power so developed must be within the specifications shown
on the Device Ratings and Specifications table for the specific device.The
operating values of a MOV need to be derated at high temperatures as
shown in Figure 1. 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.
2
VARISTOR
PRODUCTS
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53
Page 5
Line Voltage Operation, Radial Lead
LA Varistor Series
Varistor Products
54
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Transient V-I Characteristics Curves
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6,000
MAXIMUM CLAMPING VOLTAGE
5,000
MODEL SIZE 7mm
4,000
130 TO 300V
= -55oC TO 85oC
T
A
3,000
2,000
1,000
900
800
V300LA2
700
600
500
400
MAXIMUM PEAK VOLTS (V)
300
200
10
V150LA1
V130LA1
-3
10-210
FIGURE 3. CLAMPING VOLTAGE FOR V130LA1 - V300LA2 FIGURE 4. CLAMPING VOLTAGE FOR V130LA2 - V300LA4
RATING
M(AC)
-1
10010110
PEAK AMPERES (A)
V275LA2
V250LA2
2
4,000
MAXIMUM CLAMPING VOLTAGE
3,000
MODEL SIZE 7mm
130 TO 300V
2,000
T
= -55oC TO 85oC
A
1,000
900
800
700
600
500
400
300
MAXIMUM PEAK VOLTS (V)
200
100
-3
4
3
10
10
10
-2
10
RATING
M(AC)
-1
10
10
PEAK AMPERES (A)
V300LA4
V275LA4
0
V250LA4
V230LA4
V150LA2
V140LA2
V130LA2
10110
V175LA2
2
4
3
10
10
MAXIMUM CLAMPING VOLTAGE
5,000
MODEL SIZE 7mm
3,000
2,000
1,000
MAXIMUM PEAK VOLTS (V)
500
320 TO 480V
T
A
M(AC)
= -55oC TO 85oC
10-310-210-110010110
RATING
V460LA7
V480LA7
PEAK AMPERES (A)
V420LA7
V385LA7
V320LA7
2
4
3
10
10
6,000
5,000
4,000
3,000
2,000
1,000
900
800
700
600
500
400
MAXIMUM PEAK VOLTS (V)
300
200
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 10mm
130 TO 420V
= -55oC TO 85oC
T
A
V420LA10
V175LA5
-3
10
10-210
RATING
M(AC)
-1
PEAK AMPERES (A)
V275LA10
V250LA10
V230LA10
10010110
V140LA5
V130LA5
2
V150LA5
10
FIGURE 5. CLAMPING VOLTAGE FOR V320LA7 - V480LA7 FIGURE 6. CLAMPING VOLTAGE FOR V130LA5 - V420LA10
6,000
MAXIMUM CLAMPING VOLTAGE
5,000
MODEL SIZE 10mm
3,000
2,000
1,000
MAXIMUM PEAK VOLTS (V)
500
300 TO 660V
T
= -55oC TO 85oC
A
V300LA10
V320LA10
M(AC)
10-310-210-110010110
RATING
V625LA10
V660LA10
PEAK AMPERES (A)
2
V575LA10
V510LA10
V480LA10
V385LA10
3
10
MAXIMUM PEAK VOLTS (V)
4
10
MAXIMUM CLAMPING VOLTAGE
5,000
MODEL SIZE 14mm
4,000
130 TO 320V
T
= -55oC TO 85oC
A
3,000
2,000
V300LA20A
V175LA10A
-3
10
V320LA20A
10-210
1,000
900
800
700
600
500
400
300
200
RATING
M(AC)
-1
10010
PEAK AMPERES (A)
V275LA20A
V250LA20A
V230LA20A
1
10
V150LA10A
V140LA10A
V130LA10A
2
3
10
4
3
10
4
10
FIGURE 7. CLAMPING VOLTAGE FOR V300LA10 - V660LA10 FIGURE 8. CLAMPING VOLTAGE FOR V130LA10A - V320LA20A
Page 6
2
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PRODUCTS
LA Varistor Series
Varistor Products
Line Voltage Operation, Radial Lead
55
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Transient V-I Characteristics Curves (Continued)
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MAXIMUM CLAMPING VOLTAGE
5,000
MODEL SIZE 14mm
3,000
2,000
1,000
700
MAXIMUM PEAK VOLTS (V)
500
300
385 TO 1000V
T
= -55oC TO 85oC
A
V660LA50A
V625LA40A
-4
10
RATING
M(AC)
-310-210-1100101102
10
PEAK AMPERES (A)
FIGURE 9. CLAMPING VOLTAGE FOR V385LA20A -
V1000LA80A
3,000
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 20mm
130 TO 275V
2,000
T
1,000
900
800
700
600
500
400
MAXIMUM PEAK VOLTS (V)
300
200
-3
10
= -55oC TO 85oC
A
V275LA40B
V250LA40B
V150LA20B
V130LA20B
10-210
RATING
M(AC)
-1
PEAK AMPERES (A)
10010110
V1000LA80A
V575LA40A
V510LA40A
V480LA40A
V420LA20A
V385LA20A
2
3
10
3
10
3,000
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 20mm
2,000
130 TO 275V
T
= -55oC TO 85oC
A
M(AC)
RATING
1,000
900
800
700
600
V275LA40A
500
V250LA40A
400
MAXIMUM PEAK VOLTS (V)
300
V150LA20A
V130LA20A
200
-3
4
10
10
-2
10
FIGURE 10. CLAMPING VOLTAGE FOR V130LA20A - V275LA40A
3,000
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 20mm
140 TO 230V
2,000
= -55oC TO 85oC
T
A
1,000
500
MAXIMUM PEAK VOLTS (V)
300
4
10
200
-310-210-1100101102
10
V175LA20A
-1
10
PEAK AMPERES (A)
RATING
M(AC)
PEAK AMPERES (A)
10010110
V230LA40A
2
10
V140LA20A
3
10
4
3
10
4
10
FIGURE 11. CLAMPING VOLTAGE FOR V130LA20B - V275LA40B FI GURE 12. CLAMPING VOLTAGE FOR V140LA20A - V230LA40A
5,000
MAXIMUM CLAMPING VOLTAGE
3,000
2,000
1,000
MAXIMUM PEAK VOLTS (V)
500
MODEL SIZE 20mm
300 TO 1000V
T
= -55oC TO 85oC
A
V625LA80B
V660LA100B
V575LA80B
V510LA80B
V480LA80B
-310-210-1100101102
10
RATING
M(AC)
PEAK AMPERES (A)
V1000LA160B
V420LA40B
V385LA40B
V320LA40B
V300LA40A
3
10
4
10
FIGURE 13. CLAMPING VOLTAGE FOR V300LA40A - V1000LA160B
Page 7
Line Voltage Operation, Radial Lead
LA Varistor Series
Varistor Products
56
www.littelfuse.com
Pulse Rating Curves
NOTE: If pulse ratings are exceeded, a shift of V
N(DC)
(at specified current) of more than ±10% could result. This type of shift, which normally results in a decrease of V
N(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.
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2,000
1
1,000
2
500
10
200
2
10
100
50
20
10
SURGE CURRENT (A)
INDEFINITE
5
2
1
20 100 1,000 10,000
FIGURE 14. SURGE CURRENT RATING CURVES FOR
V130LA1 - V480LA7
IMPULSE DURATION ( µs)
MODEL SIZE 7mm
V130LA1 - V480LA7
3
10
4
10
5
10
6
10
5,000
1
2,000
2
1,000
10
500
200
100
50
20
SURGE CURRENT (A)
INDEFINITE
10
5
2
20 100 1,000 10,000
IMPULSE DURATION ( µs)
MODEL SIZE 10mm
V130LA5 - V660LA10
2
10
3
10
4
10
5
10
6
10
FIGURE 15. SURGE CURRENT RATING CURVES FOR
V130LA5 - V660LA10
5,000
2,000
1,000
SURGE CURRENT (A)
1
2
10
500
200
100
50
20
INDEFINITE
10
5
2
20 100 1,000 10,000
IMPULSE DURATION ( µs)
MODEL SIZE 14mm
V130LA10A - V320LA20A
2
10
3
10
4
10
5
10
6
10
FIGURE 16. SURGE CURRENT RATING CURVES FOR
V130LA10A - V320LA20A
10,000
1
5,000
2,000
1,000
500
200
100
50
20
INDEFINITE
SURGE CURRENT (A)
10
5
2
1
20 100 1,000 10,000
2
10
IMPULSE DURATION ( µs)
MODEL SIZE 20mm
V130LA20A - V320LA40B
2
10
3
10
4
10
5
10
6
10
FIGURE 18. SURGE CURRENT RATING CURVES FOR
V130LA20A - V320LA40B
5,000
2,000
1,000
SURGE CURRENT (A)
1
2
10
500
200
100
50
20
INDEFINITE
10
5
2
20 100 1,000 10,000
IMPULSE DURATION ( µs)
MODEL SIZE 14mm
V385LA20A - V1000LA80A
2
10
3
10
4
10
5
10
6
10
FIGURE 17. SURGE CURRENT RATING CURVES FOR
V385LA20A - V1000LA80A
10,000
SURGE CURRENT (A)
1
5,000
2,000
1,000
500
200
100
50
20
INDEFINITE
10
5
2
1
20 100 1,000 10,000
2
10
IMPULSE DURATION ( µs)
MODEL SIZE 20mm
V385LA40B - V1000LA160B
2
10
3
10
4
10
5
10
6
10
FIGURE 19. SURGE CURRENT RATING CURVES FOR
V385LA40B - V1000LA160B
Page 8
2
VARISTOR
PRODUCTS
LA Varistor Series
Varistor Products
Line Voltage Operation, Radial Lead
57
www.littelfuse.com
Tape and Reel Specifications
Tape and Reel Data
• 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
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SYMBOL PARAMETER
P Pitch of Component 12.7 ± 1.0 25.4 ± 1.0 25.4 ± 1.0 25.4 ± 1.0
P
0
P
1
P
2
F Lead to Lead Distance 5.0 ± 0.8 7.5 ± 0.8 7.5 ± 0.8 7.5 ± 0.8
h Component Alignment 2.0 Max 2.0 Max 2.0 Max 2.0 Max
W Tape Width 18.0 + 1.0
W
0
W
1
W
2
H Height from Tape Center to Component
H
0
H
1
D
0
t Total Tape Thickness 0.7 ± 0.2 0.7 ± 0.2 0.7 ± 0.2 0.7 ± 0.2
L Length of Clipped Lead 11.0 Max 11.0 Max 11.0 Max 11.0 Max
p Component Alignment 3o Max
NOTE: Dimensions are in mm.
Feed Hole Pitch 12.7 ± 0.2 12.7 ± 0.2 12.7 ± 0.2 12.7 ± 0.2
Feed Hole Center to Pitch 3.85 ± 0.7 2.6 ± 0.7 2.6 ± 0.7 2.6 ± 0.7
Hole Center to Component Center 6.35 ± 0.7 6.35 ± 0.7 6.35 ± 0.7 6.35 ± 0.7
Hold Down Tape Width 6.0 ± 0.3 6.0 ± 0.3 6.0 ± 0.3 12.0 ± 0.3
Hole Position 9.0 + 0.75
Hold Down Tape Position 0.5 Max 0.5 Max 0.5 Max 0.5 Max
Base
Seating Plane Height 16.0 ± 0.5 16.0 ± 0.5 16.0 ± 0.5 16.0 ± 0.5
Component Height 32.0 Max 36.0 Max 40.0 Max 46.5 Max
Feed Hole Diameter 4.0 ± 0.2 4.0 ± 0.2 4.0 ± 0.2 4.0 ± 0.2
7mm 10mm 14mm 20mm
18.0 - 0.5
9.0 - 0.50
18.0 + 2.0
18.0 - 0.0
1.00mm
18.0 + 1.0
18.0 - 0.5
9.0 + 0.75
9.0 - 0.50
18.0 + 2.0
18.0 - 0.0
3o Max
1.00mm
MODEL SIZE
18.0 + 1.0
18.0 - 0.5
9.0 + 0.75
9.0 - 0.50
18.0 + 2.0
18.0 - 0.0
3o Max
1.00mm
18.0 + 1.0
18.0 - 0.5
9.0 + 0.75
9.0 - 0.50
18.0 + 2.0
18.0 - 0.0
3o Max
Page 9
Varistor Products
STANDARD
MODEL
CRIMPED
LEADS
STRAIGHT
LEADS
UNDER-
CRIMPED
LEADS
V130LA2 V130LT2 V130LS2 V130LU2
SYMBOL
VOLTAGE
MODEL
VARISTOR MODEL SIZE
7mm 10mm 14mm 20mm
MIN MAX MIN MAX MIN MAX MIN MAX
A V130LA-
V320LA
-
-
12
(0.472)
-
-
16
(0.630)
-
-
20
(0.787)
-
-
26.5
(1.043)
V385LAV1000LA
-
-
13
(0.0512)
-
-
17
(0.689)
-
-
20.5
(0.807)
-
-
28
(1.102)
flD All -
-
9 (0.354) -
-
12.5
(0.492)
-
-
17
(0.669)
-
-
23
(0.906)
e All 4 (0.157) 6 (0.236) 6.5
(0.256)
8.5
(0.335)
6.5
(0.256)
8.5
(0.335)
6.5
(0.256)
(Note 2)
8.5
(0.335)
(Note 2)
e
1
V130LA-
V320LA
1.5
(0.059)
3.5
(0.138)
1.5
(0.059)
3.5
(0.138)
1.5
(0.059)
3.5
(0.138)
1.5
(0.059)
3.5
(0.138)
V385A-
V1000LA
2.5
(0.098)
5.5
(0.217)
2.5
(0.098)
5.5
(0.217)
2.5
(0.098)
5.5
(0.217)
2.5
(0.098)
5.5
(0.217)
E V130LA-
V320LA
-
-
5.6
(0.220)
-
-
5.6
(0.220)
-
-
5.6
(0.220)
-
-
5.6
(0.220)
V385LA-
V660LA
-
-
7.5
(0.287)
-
-
7.5
(0.287)
-
-
7.5
(0.287)
-
-
7.5
(0.287)
V1000LA -
-
-
-
-
-
-
-
-
-
10.8
(0.425)
-
-
10.8
(0.425)
flb All
(Note 3)
0.585
(0.023)
0.685
(0.027)
0.76
(0.030)
0.86
(0.034)
0.76
(0.030)
0.86
(0.034)
0.76
(0.030)
(Note 2)
0.86
(0.034)
(Note 2)
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).
VARISTOR
VOLTAGE
MODEL
STANDARD BULK PACK QUANTITY
VARISTOR MODEL SIZE
7mm 10mm 14mm 20mm
130-275 1500 1000 700 500
300-460 1500 700 600 400
510-625 1500 700 500 400
Line V oltage Operation, Radial Lead
LA V aristor Series
Tape and Reel Ordering Information
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.
Example:
Standard Bulk Pack Quantity
58
www.littelfuse.com
Page 10
2
VARISTOR
PRODUCTS
LA Varistor Series
Varistor Products
Line Voltage Operation, Radial Lead
59
www.littelfuse.com
Additional Lead Style Options
Radial lead types can be supplied with combination preformed crimp and
trimmed leads. This option is supplied to the dimensions shown.
*Seating plane interpretation per IEC-717
CRIMPED AND TRIMMED LEAD
To order this crimped and trimmed lead style, standard radial type model
numbers are changed by replacing the model letter “A” with “C”.
Example:
• For crimped leads without trimming and any variations to the above,
contact Littelfuse.
• For 10/±1mm lead spacing on 20mm diameter models only;
append standard model numbers by adding “X10”.
Example:
Ordering Information
LA series Varistors are shipped standard in bulk pack with straight leads and lead spacing outlined in the package dimensions on page 4-13.
Contact your Littelfuse sales representative to discuss the non-standard options outlined below.
Next
Previous
VARISTOR MODEL SIZE
7mm 10mm 14mm 20mm
SYMBOL
A-
L
TRIM
NOTE: Dimensions in millimeters, inches in parentheses.
MIN MAX MIN MAX MIN MAX MIN MAX
-
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)
15
(0.591)
-
-
19.5 (0.768) -
-
STANDARD CATALOG
MODEL ORDER AS:
V130LA20A V130LA20AX10
22.5 (0.886) -
-
29.0 (1.142)
V XXX LA XX X
VARISTOR
V
M(AC)
130V to 1,000V
SERIES DESIGNATOR/
LEAD STYLE DESIGNATOR
LC = Crimped and Clipped
LS = Straight
LT = Crimped
LU = Under Crimped
CLAMP VOLTAGE VARIANT
(Where Applicable)
RELATIVE ENERGY INDICATOR
(One or Two Digits)
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