Varistor Products
Industrial High Energy Terminal Varistors > HA Series
RoHS
HA Varistor Series
Description
HA Series transient surge suppressors are industrial high
energy Metal-Oxide Varistors (MOVs). They are designed
to provide secondary surge protection in the outdoor
and service entrance environment (distribution panels)
of buildings, and also in industrial applications for motor
controls and power supplies used in the oil-drilling, mining,
and transportation elds.
The design of the HA Series of MOVs provide rigid
terminals for screw mounting. Also available in a clipped
lead version for through hole board placement or to
accommodate soldered leads designationHC
Agency Approvals
See Ratings and Specications Table for part number and
brand information.
Agency Agency File Number
Features
E320116
RoHS compliant High peak pulse current
and Leadfree capability, ITM =
LR91788
25,000A to 40,000A
Wide operating
Rigid terminals for
voltage range
secure mounting
V
M(AC)RMS
110V to 750V
Available in trimmed
version for through
Two disc sizes available
hole board mounting
32mm and 40mm
DesignationH
High energy absorption
No derating up to
capability
85C ambient
W = 170J to 1050J
TM
Absolute Maximum Ratings
For ratings of individual members of a series, see Device Ratings and Specications chart
Continuous HA Series Units
Steady State Applied Voltage:
AC Voltage Range (V ) 110 to 750 V
M(AC)RMS
DC Voltage Range (V ) 148 to 970 V
M(DC)
Transients:
Peak Pulse Current (I )
TM
For 8/20s Current Wave (See Figure 2) 25,000 to 40,000 A
Single Pulse Energy Range
For 2ms Current Squarewave (W ) 160 to 1050 J
TM
Operating Ambient Temperature Range (T ) -55 to +85 C
A
Storage Temperature Range (T ) -55 to +125 C
STG
V
Temperature Coefcient (a ) of Clamping Voltage (V ) at Specied Test Current <0.01 %/C
C
HiPot Encapsulation (COATING Isolation Voltage Capability)
2500 V
(Dielectric must withstand indicated DC voltage for one minute per MILSTD 202, Method 301)
COATING Insulation Resistance 1000 M
CAUTION: Stresses above those listed inAbsolute Maximum Rating 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.
2009 Littelfuse, Inc.
HA Varistor Series
Specications are subject to change without notice.
Please refer to www.littelfuse.com/series/ha.html for current information. Revision: October 29, 2009
HIENERGY MOHA SeriesVSVaristor Products
Industrial High Energy Terminal Varistors > HA Series
HA Series Ratings & Specications
Maximum Rating (85C) Specications (25C)
Maximum Typical
Continuous Transient
Part
Varistor Voltage at 1mA Clamping Volt Capaci-
Number Energy Peak Current
DC Test Current V at 200A tance f =
V V C
RMS DC
Device (2ms) 8 x 20s
Current (8/20s) 1MHz
Branding
V V W I Min V Max V C
M(AC) M(DC) TM TM N(DC) C
(V) (V) Energy (A) (V) (V) (V) (A) (pF)
V111HA32 110 148 160 25000 156 173 190 293 5450
1
V111HA40 110 148 220 40000 156 173 190 288 11600
V131HA32 130 175 200 25000 184 200 228 350 4700
2
V131HA40 130 175 270 40000 184 200 228 345 10000
V141HA32 140 188 210 25000 198 220 248 380 4230
3
V141HA40 140 188 290 40000 198 220 248 375 9000
V151HA32 150 200 220 25000 212 240 268 410 4000
4
V151HA40 150 200 300 40000 212 240 268 405 8000
V181HA32 180 240 240 25000 254 282 310 475 3200
V181HA40 180 240 330 40000 254 282 310 468 6800
V201HA32 200 265 260 25000 283 314 345 540 3180
V201HA40 200 265 350 40000 283 314 345 533 6350
V251HA32 250 330 330 25000 354 390 429 650 2500
V251HA40 250 330 370 40000 354 390 429 630 5000
V271HA32 275 369 360 25000 389 430 473 710 2200
V271HA40 275 369 400 40000 389 430 473 690 4500
V301HA32 300 410 370 25000 433 478 526 795 2050
V301HA40 300 410 430 40000 433 478 526 780 4100
V321HA32 320 420 390 25000 462 510 561 845 1900
V321HA40 320 420 460 40000 462 510 561 825 3800
V331HA32 330 435 385 25000 467 519 570 860 1870
V331HA40 330 435 475 40000 467 519 570 843 3750
V351HA32 350 460 390 25000 495 550 604 910 1800
V351HA40 350 460 500 40000 495 550 604 894 3600
V391HA32 385 510 395 25000 545 604 663 1020 1750
V391HA40 385 510 550 40000 545 604 663 1000 3500
V421HA32 420 560 400 25000 610 680 748 1120 1500
V421HA40 420 560 600 40000 610 680 748 1100 3000
V441HA32 440 585 420 25000 622 691 759 1200 1450
V441HA40 440 585 630 40000 622 691 759 1147 2900
V481HA32 480 640 450 25000 670 750 825 1290 1300
V481HA40 480 640 650 40000 670 750 825 1230 2700
V511HA32 510 675 500 25000 735 820 910 1355 1200
V511HA40 510 675 700 40000 735 820 910 1295 2500
V551HA32 550 710 530 25000 778 864 949 1515 1190
V551HA40 550 710 755 40000 778 864 949 1430 2390
V571HA32 575 730 550 25000 805 910 1000 1570 1100
V571HA40 575 730 770 40000 805 910 1000 1480 2200
V661HA32 660 850 600 25000 940 1050 1160 1820 1000
V661HA40 660 850 900 40000 940 1050 1160 1720 2000
V681HA32 680 875 610 25000 962 1068 1173 1830 850
V681HA40 680 875 925 40000 962 1068 1173 1780 1900
V751HA32 750 970 700 25000 1080 1200 1320 2050 800
V751HA40 750 970 1050 40000 1080 1200 1320 2000 1800
NOTE: Average power dissipation of transients not to exceed 2.0W per varistor
1. 40kA capability depends on applications rated up to 97Vrms. 30kA applies if > 97 Vrms.
2. 40kA capability depends on applications rated up to 115Vrms. 30kA applies if > 115 Vrms.
3. 40kA capability depends on applications rated up to 123Vrms. 30kA applies if > 123 Vrms.
4. 40kA capability depends on applications rated up to 132Vrms. 30kA applies if > 132Vrms.
2009 Littelfuse, Inc.
HA Varistor Series
Specications are subject to change without notice.
Please refer to www.littelfuse.com/series/ha.html for current information.
Revision: October 29, 2009