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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 voltage range from 130V to 1000V, and an
M(AC)RMS
energy absorption capability up to 360J. Some LA Series
model numbers are available with clamping voltage
selections, designated by a model number sufx of
either A or B. The 'A' selection is the standard model;
Agency Approvals
the 'B' selection provides a lower clamping voltage.
See LA Series Device Ratings and Specications
Agency Agency File Number
Table for part number and brand information.
E320116, E56529, E135010
Features
116895
Leadfree, Halogen- No derating up to
LR91788
Free and RoHS 85C ambient
compliant.
42201-006
Available in tape and
Energy absorption
reel or bulk pack
capability (W )
TM
up to 360J
Wide operating
voltage range
V 130V to 1000V
M(AC)RMS
Absolute Maximum Ratings
For ratings of individual members of a series, see Device Ratings and Specications chart
Continuous LA Series Units
Steady State Applied Voltage:
AC Voltage Range (V ) 130 to 1000 V
M(AC)RMS
DC Voltage Range (V ) 175 to 1200 V
M(DC)
Transients:
Peak Pulse Current (I )
TM
For 8/20s Current Wave (See Figure 2) 1200 to 6500 A
Single Pulse Energy Range
For 10/1000s Current Wave (W ) 11 to 360 J
TM
O
Operating Ambient Temperature Range (T ) -55 to +85 C
A
O
Storage Temperature Range (T ) -55 to +125 C
STG
V O
Temperature Coefcient (a ) of Clamping Voltage (V ) at Specied Test Current <0.01 %/ C
C
Hi-Pot Encapsulation (COATING Isolation Voltage Capability)
2500 V
(Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301)
COATING Insulation Resistance 1000 M
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 specication is
not implied.
2010 Littelfuse, Inc.
LA Varistor Series
Specications are subject to change without notice.
Revision: August 4, 2010
Please refer to www.littelfuse.com/series/la.html for current information.
LA SeriesVaristor Products
Radial Lead Varistors > LA Series
LA Series Ratings & Specications
Maximum Rating (85C) Specications (25C)
Varistor
Continuous Transient
Maximum Typical
Voltage at
Clamping Capaci-
Peak
Model Size 1mA
Energy 10
Part
Voltage tance f =
V V Current 8
Branding Disc Dia. RMS DC DC Test
x 1000s
Number
8 x 20 s 1MHz
x 20s
(mm) Current
V V
NOM NOM
V V W I V I C
M(AC) M(DC) TM TM C PK
Min Max
(V) (V) (J) (A) (V) (V) (V) (A) (pF)
V130LA1P P1301 7 130 175 11 1200 184 255 390 10 180
V130LA2P P1302 7 130 175 11 1200 184 228 340 10 180
V130LA5P P1305 10 130 175 20 2500 184 228 340 25 450
V130LA10AP P130L10 14 130 175 38 4500 184 228 340 50 1000
V130LA20AP P130L20 20 130 175 70 6500 184 228 340 100 1900
V130LA20BP P130L20B 20 130 175 70 6500 184 220 325 100 1900
V140LA2P P1402 7 140 180 12 1200 198 242 360 10 160
V140LA5P P1405 10 140 180 22 2500 198 242 360 25 400
V140LA10AP P140L10 14 140 180 42 4500 198 242 360 50 900
V140LA20AP P140L20 20 140 180 75 6500 198 242 340 100 1750
V150LA1P P1501 7 150 200 13 1200 212 284 430 10 150
V150LA2P P1502 7 150 200 13 1200 212 268 395 10 150
V150LA5P P1505 10 150 200 25 2500 212 268 395 25 360
V150LA10AP P150L10 14 150 200 45 4500 212 268 395 50 800
V150LA20AP P150L20 20 150 200 80 6500 212268395100 1600
V150LA20BP P150L20B 20 150 200 80 6500 212 243 360 100 1600
V175LA2P P1752 7 175 225 15 1200 247 303 455 10 130
V175LA5P P1755 10 175 225 30 2500 247 303 455 25 350
V175LA10AP P175L10 14 175 225 55 4500 247 303 455 50 700
V175LA20AP P175L20 20 175 225 90 6500 247 303 455 100 1400
V230LA4P P2304 7 230 300 20 1200 324 396 595 10 100
V230LA10P P230L 10 230 300 35 2500 324 396 595 25 250
V230LA20AP P230L20 14 230 300 70 4500 324 396 595 50 550
V230LA40AP P230L40 20 230 300 122 6500 324 396 595 100 1100
V250LA2P P2502 7 250 330 21 1200 354 473 730 10 90
V250LA4P P2504 7 250 330 21 1200 354 429 650 10 90
V250LA10P P250L 10 250 330 40 2500 354 429 650 25 220
V250LA20AP P250L20 14 250 330 72 4500 354 429 650 50 500
V250LA40AP P250L40 20 250 330 130 6500 354 429 650 100 1000
V250LA40BP P250L40B 20 250 330 130 6500 354 413 620 100 1000
V275LA2P P2752 7 275 369 23 1200 389 515 775 10 80
V275LA4P P2754 7 275 369 23 1200 389 473 710 10 80
V275LA10P P275L 10 275 369 45 2500 389 473 710 25 200
V275LA20AP P275L20 14 275 369 75 4500 389 473 710 50 450
V275LA40AP P275L40 20 275 369 140 6500 389 473 710 100 900
V275LA40BP P275L40B 20 275 369 140 6500 389 453 680 100 900
V300LA2P P3002 7 300 405 25 1200 420 565 870 10 70
V300LA4P P3004 7 300 405 25 1200 420 517 775 10 70
V300LA10P P300L 10 300 405 46 2500 420 517 775 25 180
V300LA20AP P300L20 14 300 405 77 4500 420 517 775 50 400
V300LA40AP P300L40 20 300 405 165 6500 420 517 775 100 800
V320LA7P P3207 7 320 420 25 1200 462 565 850 10 65
V320LA10P P320L 10 320 420 48 2500 462 565 850 25 170
V320LA20AP P320L20 14 320 420 80 4500 462 565 850 50 380
V320LA40BP P320L40 20 320 420 150 6500 462 540 810 100 750
V385LA7P P3857 7 385 505 27 1200 558 682 1025 10 60
V385LA10P P385L 10 385 505 51 2500 558 682 1025 25 160
V385LA20AP P385L20 14 385 505 85 4500 558 682 1025 50 360
2010 Littelfuse, Inc.
LA Varistor Series
Specications are subject to change without notice.
Revision: August 4, 2010
Please refer to www.littelfuse.com/series/la.html for current information.