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HA Series
Data Sheet July 1999 File Number 2973.5
Industrial High Energy Metal-Oxide Varistors [ /Title (HA Series) /Subject (Industrial High Energy MetalOxide Varistors) /Autho r () /Keywords (Littelfuse, Inc., Suppression Products, TVS, Transient Suppression, Protection, AC Line, AC Panel, Lightning
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 fields. The design of the HA Series of metal oxide varistors provide rigid terminals for screw mounting. Also available in a clipped lead version for through hole board placement or to accommodate soldered leads - designation "HC". See Ratings and Specifications table for part number and brand information.
Features
* Recognized as "Transient Voltage Surge Suppressors", UL File #E75961 to Std. 1449, Second Edition * Recognized as "Transient Voltage Surge Suppressors", CSA File #LR91788 to Standard C22.2 No. 1-M1981 * Wide Operating Voltage Range VM(AC)RMS . . . . . . . . . . . . . . . . . . . . . . . . . 130V to 750V * Two Disc Sizes Available . . . . . . . . . . . . 32mm and 40mm * High Energy Absorption Capability . . . . . . . . . . . . . . . . . . . . WTM = 200J to 1050J * High Peak Pulse Current Capability . . . . . . . . . . . . . . . . . ITM = 25,000A to 40,000A * Rigid Terminals for Secure Mounting * Available in Trimmed Version for Through Hole Board Mounting - Designation "HC" * No Derating Up to 85oC Ambient
Packaging
HA SERIES
ALSO SEE HB34 SERIES
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1-800-999-9445 or 1-847-824-1188 | Copyright
(c) Littelfuse, Inc. 1999
HA Series
Absolute Maximum Ratings
For ratings of individual members of a series, see Device Ratings and Specifications Chart HA SERIES Continuous: Steady State Applied Voltage: AC Voltage Range (VM(AC)RMS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC Voltage Range (VM(DC)) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transient: Peak Pulse Current (ITM) For 8/20s Current Wave (See Figure 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Single Pulse Energy Range For 2ms Current Square Wave (WTM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating Ambient Temperature Range (TA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage Temperature Range (TSTG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Temperature Coefficient (V) of Clamping Voltage (VC) at Specified Test Current . . . . . . . . . . . . . . . . . . Hi-Pot Encapsulation (Isolation Voltage Capability) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301) Insulation Resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . UNITS
130 to 750 175 to 970
V V
25,000 to 40,000 200 to 1050 -55 to 85 -55 to 125 <0.01 2500
A J
oC oC
%/oC V
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 specification is not implied.
Device Ratings and Specifications
HA Series varistors are listed under CSA File #LR91788 as a recognized component. HA Series varistors are listed under U.L. File #E75961 as a recognized component.
MAXIMUM RATINGS (85oC) CONTINUOUS TRANSIENT PEAK CURRENT (8/20s) ITM (A) 25000 30000 25000 30000 25000 40000 25000 40000 25000 40000 25000 40000 25000 40000 25000 40000 25000 40000 25000 40000 25000 40000 VARISTOR VOLTAGE AT 1mA DC TEST CURRENT MIN (V) 184 184 212 212 354 354 389 389 462 462 610 610 670 670 735 735 805 805 940 940 1080 1080 VN(DC) (V) 200 200 240 240 390 390 430 430 510 510 680 680 750 750 820 820 910 910 1050 1050 1200 1200 MAX (V) 228 228 268 268 429 429 473 473 561 561 748 748 825 825 910 910 1000 1000 1160 1160 1320 1320 SPECIFICATIONS (25oC) MAXIMUM CLAMPING VOLTAGE (VC) AT 200A (8/20s) VC (V) 350 345 410 405 650 630 710 690 845 825 1120 1100 1290 1230 1355 1295 1570 1480 1820 1720 2050 2000
PART NUMBER AND DEVICE BRANDING V131HA32 V131HA40 V151HA32 V151HA40 V251HA32 V251HA40 V271HA32 V271HA40 V321HA32 V321HA40 V421HA32 V421HA40 V481HA32 V481HA40 V511HA32 V511HA40 V571HA32 V571HA40 V661HA32 V661HA40 V751HA32 V751HA40
VRMS VM(AC) (V) 130 130 150 150 250 250 275 275 320 320 420 420 480 480 510 510 575 575 660 660 750 750
VDC VM(DC) (V) 175 175 200 200 330 330 369 369 420 420 560 560 640 640 675 675 730 730 850 850 970 970
ENERGY (2ms) WTM ENERGY 200 270 220 300 330 370 360 400 390 460 400 600 450 650 500 700 550 770 600 900 700 1050
TYPICAL CAPACITANCE AT f = 1MHz C (pF) 4700 10000 4000 8000 2500 5000 2200 4500 1900 3800 1500 3000 1300 2700 1200 2500 1100 2200 1000 2000 800 1800
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HA Series Power Dissipation Ratings
Should transients occur in rapid succession, the average power dissipation required is simply the energy (wattseconds) 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. Furthermore, the operating values need to be derated at high temperatures as shown in Figure 1. Because varistors can only dissipate a relatively small amount of average power they are, therefore, not suitable for repetitive applications that involve substantial amounts for average power dissipation.
100 PERCENT OF RATED VALUE 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)
FIGURE 1. CURRENT, ENERGY AND POWER DERATING CURVE
PERCENT OF PEAK VALUE
100 90
50
O1 = Virtual Origin of Wave T = Time From 10% to 90% of Peak T1 = Virtual Front Time = 1.25 * t T2 = Virtual Time to Half Value (Impulse Duration) Example: For an 8/20s Current Waveform: 8s = T1 = Virtual Front Time 20s = T2 = Virtual Time to Half Value
T T1 T2 TIME
10 O1
FIGURE 2. PEAK PULSE CURRENT WAVEFORM
Transient V-I Characteristics Curves
6,000 5,000 4,000 MAXIMUM PEAK VOLTS (V) 3,000 2,000 V751HA32 V661HA32 V571HA32 1,000 V511HA32 900 V481HA32 800 V421HA32 700 600 V321HA32 500 V271HA32 V251HA32 400 300 V151HA32 V131HA32 200 10-3 10-2 10-1 100 101 102 PEAK AMPERES (A) 103 104 105 MAXIMUM CLAMPING VOLTAGE MODEL SIZE 32mm 130 TO 750VM(AC) RATING TA = -55oC to 85oC 6,000 5,000 4,000 MAXIMUM PEAK VOLTS (V) 3,000 2,000 MAXIMUM CLAMPING VOLTAGE DISC SIZE 40mm 130 TO 750 VM(AC) RATING V511HA40 V481HA40 V421HA40 V751HA40 V661HA40 V571HA40 TA = -55oC to 85oC
1,000 900 800 700 600 500 400 300 200 10-2 V131HA40 10-1 100 101 102 103 PEAK AMPERES (A) V151HA40 V321HA40 V271HA40 V251HA40 104 105
FIGURE 3. CLAMPING VOLTAGE FOR V131HA32 - V751HA32
FIGURE 4. CLAMPING VOLTAGE FOR V131HA40 - V751HA40
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HA Series Pulse Rating Curves
50,000 20,000 10,000 SURGE CURRENT (A) 1 2 DISC SIZE 32mm V131HA32 - V751HA32 50,000 1 20,000 10,000 SURGE CURRENT (A) 5,000 102 2,000 1,000 500 103 104 2 10 DISC SIZE 40mm V131HA40 - V151HA40
5,000 10
2 2,000 10
1,000 103 500 104
5 200 10
100 50 20 10
106 INDEFINITE 20 100 1,000 IMPULSE DURATION (s) 10,000
105 200 10 6 100 50 20 10 20 INDEFINITE 100 1,000 IMPULSE DURATION (s) 10,000
FIGURE 5. SURGE CURRENT RATING CURVES FOR V131HA32 - V751HA32
FIGURE 6. SURGE CURRENT RATING CURVES FOR V131HA40 - V151HA40
50,000 1 20,000 10,000 SURGE CURRENT (A) 5,000 2,000 1,000 500 200 100 50 20 10 20 INDEFINITE 100 1,000 IMPULSE DURATION (s) 10,000 102 10 3 10 4 105 10 6 2 10 DISC SIZE 40mm V251HA40 - V751HA40
FIGURE 7. SURGE CURRENT RATING CURVES FOR V251HA40 - V751HA40
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HA Series Mechanical Dimensions
TABLE 1. HA SERIES OUTLINE SPECIFICATIONS (Dimensions in Millimeters) D H B X
OA
TABLE 3. HC SERIES OUTLINE SPECIFICATIONS (Dimensions in Millimeters) S OFFSET HC32 HC40 D MAX 35.5 42.5 H MAX 52.00 57.00 B MIN 5.0 5.0 X T R
SC
T
T1
MAX MAX MIN NOM MAX NOM NOM HA32 35.5 52.00 HA40 42.5 57.00 3.0 3.0 25 25 4.20 9.30 10.4
NOM NOM MAX 25 25 9.30 9.30 1.0 1.0
OFFSET Depends on Device Voltage (See Table 4)
Depends on Device 4.20 9.30 10.4 Voltage (See Table 2)
TABLE 2. HA SERIES MAXIMUM THICKNESS AND TERMINAL OFFSETS (Dimensions in Millimeters) THICKNESS "W" VOLTAGE V131 - V321 V421 - V511 V571 - V751 HA32 9.00 11.00 13.00 HA40 9.00 11.00 13.00 DIMENSION "S" (1mm) HA32 3.90 2.60 1.00 HA40 3.90 2.60 1.00
TABLE 4. HC SERIES MAXIMUM THICKNESS AND TERMINAL OFFSETS (Dimensions in Millimeters) THICKNESS "W" VOLTAGE V131 - V321 V421 - V511 V571 - V751 HC32 9.00 11.00 13.00 HC40 9.00 11.00 13.00 DIMENSION "SC" (1mm) HC32 6.00 7.30 8.90 HC40 6.00 8.10 10.00
Ordering Information
V XX X HA XX
VARISTOR DISC SIZE (mm)
VM(AC) First Two Significant Digits VM(AC) Decade Multiplier
SERIES DESIGNATOR HA or HC
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