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V681DHB34

P1-P3P4-P5
Varistor Products
©2010 Littelfuse, Inc.
Revision: October 19, 2010
DHB34 Varistor Series
Industrial High Energy Terminal Varistors > DHB34 Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/dhb34.html for current information.
HI–ENERGY MOV’SDHB34 Series
DHB34 Varistor Series
Description
The DHB34 Series of transient surge suppressors is
comprised of two industrial high-energy Metal-Oxide
Varistors (MOVs) discs placed in parallel as a single device.
They are designed to provide surge suppression in the
AC mains outdoor and service entrance environment
(distribution panels) of buildings. DHB34 applications
also include industrial heavy motors, controls, and power
supplies such as used in the oil-drilling, mining, and
transportation fields, including HVAC and motor/generator
applications.
The DHB34 Series provides rigid terminals for through-
hole solder mounting on printed circuit boards, thereby
eliminating the need for screw mounting.
Features
t -FBE'SFF)BMPHFO
'SFFBOE3P)4
Compliant
t 8JEFPQFSBUJOH
voltage range
V
."$3.4
110V to 750V
t )JHIoFOFSHZ
absorption
capability
8
TM
= 220J to 1050J
t )JHIQFBLQVMTF
current (Each of
two discs placed in
parallel) capability
I
TM
= 40,000A
t 3JHJEUFSNJOBMTGPS
secure through-hole
solder mounting
t /PEFSBUJOHVQUP
85ºC ambient
t %VBM%JTD%FWJDF
two 34mm varistor
discs in parallel in
BTJOHMFQBDLBHF
Agency Approvals
Absolute Maximum Ratings
t'PSSBUJOHTPGJOEJWJEVBMNFNCFSTPGBTFSJFTTFF%FWJDF3BUJOHTBOE4QFDJmDBUJPOTDIBSU
Agency Agency File Number
1449, E320116, 1414, E56529
-3
Continuous DHB34 Series Units
Steady State Applied Voltage:
"$7PMUBHF3BOHF7
."$3.4
) 110 to 750 V
%$7PMUBHF3BOHF7
M(DC)
) 148 to 970 V
Transients:
1FBL1VMTF$VSSFOU*
TM
)
'PSμT$VSSFOU8BWF4FF'JHVSF 40000 A
4JOHMF1VMTF&OFSHZ3BOHF
'PSNT$VSSFOU8BWF8
TM
) 220 to 1050 J
0QFSBUJOH"NCJFOU5FNQFSBUVSF3BOHF5
A
) -55 to + 85 ºC
4UPSBHF5FNQFSBUVSF3BOHF5
STG
) -55 to + 125 ºC
Temperature Coefficient (a
V
) of Clamping Voltage (V
C
) at Specified Test Current <0.01 %/ºC
)J1PU&ODBQTVMBUJPO$0"5*/(*TPMBUJPO7PMUBHF$BQBCJMJUZ 2500 V
$0"5*/(*OTVMBUJPO3FTJTUBODF 1000 MΩ
CAUTION: 4USFTTFTBCPWFUIPTFMJTUFEJO"CTPMVUF.BYJNVN3BUJOHTNBZDBVTFQFSNBOFOUEBNBHFUPUIFEFWJDF5IJTJTBTUSFTTPOMZSBUJOHBOEPQFSBUJPO
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
RoHS
Varistor Products
©2010 Littelfuse, Inc.
Revision: October 19, 2010
DHB34 Varistor Series
Industrial High Energy Terminal Varistors > DHB34 Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/dhb34.html for current information.
DHB34 Series Ratings & Specifications
Lead–free
and RoHS
Compliant Models
Model
Size
Disc
Dia.
(mm)
Maximum Rating (85°C) Specifications (25°C)
Continuous Transient
Varistor Voltage at 1mA
DC Test Current
Maximum
Clamping Voltage
V
C
at 200A
Current (8/20μs)
Typical
Capaci-
tance
V
3.4
V
DC
Energy
(2ms)
Peak
Current
8 x 20μs
Part Number
V
M(AC)
V
M(DC)
W
TM
I
TM
Min V
/%$
Max V
C
f = 1MHz
(V) (V) (J) (A) (V) (V) (V) (V) (pF)
V111DHB34 34 110 148 220 40,000
1
156 173 190 288 11,600
V131DHB34 34 130 175 270 40,000
2
184 200 228 345 10,000
V141DHB34 34 140 188 291 40,000
3
198 220 248 375 9,000
V151DHB34 34 150 200 300 40,000
4
212 240 268 405 8,000
V181DHB34 34 180 240 330 40,000 254 282 310 468 6,800
V201DHB34 34 200 265 350 40,000 283 314 345 533 6,350
V251DHB34 34 250 330 370 40,000 354 390 429 650 5,000
V271DHB34 34 275 369 400 40,000 389 430 473 730 4,500
V301DHB34 34 300 410 430 40,000 433 478 526 780 4,100
V321DHB34 34 320 420 460 40,000 462 510 561 830 3,800
V331DHB34 34 330 435 475 40,000 467 519 570 843 3,750
V351DHB34 34 350 460 500 40,000 495 550 604 894 3,600
V391DHB34 34 385 510 550 40,000 545 604 663 1,000 3,500
V421DHB34 34 420 560 600 40,000 610 680 748 1,130 3,000
V441DHB34 34 440 585 630 40,000 622 691 759 1,147 2,900
V481DHB34 34 480 640 650 40,000 670 750 825 1,240 2,700
V511DHB34 34 510 675 700 40,000 735 820 910 1,350 2,500
V551DHB34 34 550 710 755 40,000 778 864 949 1,404 2,390
V571DHB34 34 575 730 770 40,000 805 910 1000 1,480 2,200
V661DHB34 34 660 850 900 40,000 940 1050 1160 1,720 2,000
V681DHB34 34 680 875 925 40,000 962 1068 1173 1,777 1,900
V751DHB34 34 750 970 1050 40,000 1080 1200 1320 2,000 1,800
/PUF
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3.4
L"BQQMJFTJG7
3.4
.
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3.4
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3.4
.
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3.4
L"BQQMJFTJG7
3.4
.
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3.4
L"BQQMJFTJG7
3.4
.
Varistor Products
©2010 Littelfuse, Inc.
Revision: October 19, 2010
DHB34 Varistor Series
Industrial High Energy Terminal Varistors > DHB34 Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/dhb34.html for current information.
HI–ENERGY MOV’SDHB34 Series
Should transients occur in rapid succession, the average
power 100 dissipation result is simply the energy
(watt-seconds) per pulse times the number of pulses
per second. The power so developed must be within
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Specifications table for the specific device. The operating
values must be derated as shown in above.
Power Dissipation Ratings
100
90
50
10
O
1
T
T
1
T
2
TIME
PERCENT OF PEAK VALUE
Peak Pulse Current Test Waveform
Maximum Clamping Voltage
DISC SIZE 34mm
V131DHB34 - V751DHB34
50,000
20,000
10,000
5,000
2,000
1,000
500
200
100
50
20
10
20 100 1,000 10,000
SURGE CURRENT (A)
IMPULSE DURATION (μs)
10
1
INDEFINITE
10
5
10
2
2
10
3
10
4
10
6
Repetitive Surge Capability
/05&*GQVMTFSBUJOHTBSFFYDFFEFEBTIJGUPG7
/%$
(at specified current) of more than
+/-10% could result. This type of shift, which normally results in a decrease of V
/%$
, may
result in the device not meeting the original published specifications, but it does not
prevent the device from continuing to function, and to provide ample protection.
0
1
7JSUVBM0SJHJOPG8BWF
55JNFGSPNUPPG1FBL
T
1
3JTF5JNFY5
T
2
= Decay Time
Example 'PSBOμT$VSSFOU8BWFGPSN
8μs = T
1
3JTF5JNF
20μs = T
2
= Decay Time
1000
10000
0.001 0.01 0.1 1 10 100 10000 100000
Maximum Clamping Voltage
DHB34 Series
110 to 750V AC Rating
TA = -55 C to 85C
Current - AMPS
V751
V681V661
V571
V551
V511
V391 V351 V331 V321 V271 V251 V201 V181
V151
V141
V 111
V131
V301
V481
V441
V421
100
1000
Voltage -
VOLTS
Figure 1
Figure 2
Figure 3
Figure 4
P1-P3P4-P5

V681DHB34

Mfr. #:
Buy V681DHB34
Manufacturer:
Littelfuse
Description:
Varistors DHB Series
Lifecycle:
New from this manufacturer.
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