V321DHB34 [LITTELFUSE]
Varistor Products - High Energy Industrial; 压敏电阻产品 - 高能工业
| 型号： | V321DHB34 |
| 厂家： | 
LITTELFUSE |
| 描述： | Varistor Products - High Energy Industrial |
| 文件： | 总5页 (文件大小：98K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Varistor Products
High Energy Industrial
NEW
®
®
DHB34 Varistor Series
The DHB34 Series of transient surge suppressors are industrial high-
energy Metal-Oxide Varistors (MOVs). 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.
2
The DHB34 Series provides rigid terminals for through-hole solder
mounting on printed circuit boards, thereby eliminating the need for screw
mounting.
See Ratings and Specifications table for part numbers.
Features
• Wide Operating Voltage Range
V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110V to 750V
M(AC)RMS
• High Energy Absorption
Capability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .W
= 220J to 1050J
TM
• High Peak Pulse Current
Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
= 40,000A*
TM
• Rigid Terminals for Secure Through-Hole Solder Mounting
• No Derating Up to 85oC Ambient
AGENCY APPROVALS: Recognized under the components program of
Underwriters Laboratories. Certified by CSA.
AGENCY FILE NUMBERS: UL 1449, E75961, UL1414, E56529,
CSA LR91788.
* NOTE: Ratings are for each individual varistor element
in a dual assembly.
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Varistor Products
High Energy Industrial
DHB34 Varistor Series
Absolute Maximum Ratings For ratings of individual members of a series, see Device Ratings and Specifications chart
Continuous:
DHB34 SERIES
UNITS
Steady State Applied Voltage:
AC Voltage Range (V
DC Voltage Range (V
Transient:
Peak Pulse Current (I
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 to 750
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 to 970
V
V
M(AC)RMS
M(DC)
)
TM
For 8/20µs Current Wave (See Figure 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40,000
Single Pulse Energy Range
For 2ms Current Square Wave (W ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 to 1050
A
J
TM
Operating Ambient Temperature Range (T ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 85
A
OC
OC
%/OC
Storage Temperature Range (T
STG
). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 125
Temperature Coefficient (αV) of Clamping Voltage (V ) at Specified Test Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <0.01
C
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
o
o
MAXIMUM RATINGS (85 C)
CONTINUOUS TRANSIENT
SPECIFICATIONS (25 C)
MAXIMUM
CLAMPING
VOLTAGE
PEAK
CURRENT
(8/20µs)
VARISTOR VOLTAGE
AT 1mA DC TEST
CURRENT
TYPICAL
CAPACI-
TANCE
ENERGY
(2ms)
(V ) AT 200A
C
V
V
(8/20µs)
RMS
DC
SIZE
(mm)
V
V
W
I
MIN
(V)
V
MAX
(V)
V
C
f = 1MHz
(pF)
M(AC)
(V)
M(DC)
(V)
TM
TM
N(DC)
(V)
MODEL
NUMBER
(V)
(A)
(V)
288
V111DHB34
V131DHB34
34
34
110
130
148
175
220
270
40,000 1
40,000 2
156
184
173
200
190
228
11,600
10,000
345
V141DHB34
V151DHB34
34
34
140
150
40,000 3
40,000 4
375
405
9,000
8,000
188
200
291
300
198
212
220
240
248
268
V181DHB34
V201DHB34
34
34
180
200
240
265
330
350
40,000
40,000
254
283
282
314
310
345
468
533
6,800
6,350
V251DHB34
V271DHB34
34
34
34
250
275
330
369
370
400
40,000
40,000
40,000
354
389
390
430
429
473
650
730
780
5,000
4,500
410
420
430
460
433
462
478
510
526
561
4,100
3,800
V301DHB34
V321DHB34
300
320
34
40,000
830
V331DHB34
V351DHB34
34
34
330
350
435
460
475
500
40,000
40,000
467
495
519
550
570
604
843
894
3,750
3,600
NOTE: Ratings are for each individual varistor element in dual assembly.
1. Average power dissipation of transients not to exceed 2.0W per varistor element (2 varistors per device).
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 > 132 VRMS
.
.
.
5. 40kA capability depends on applications rated up to 97VRMS. 30kA applies if > 97 VRMS
.
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Varistor Products
High Energy Industrial
DHB34 Varistor Series
Device Ratings and Specifications
o
o
MAXIMUM RATINGS (85 C)
CONTINUOUS TRANSIENT
SPECIFICATIONS (25 C)
MAXIMUM
CLAMPING
VOLTAGE
PEAK
CURRENT
(8/20µs)
VARISTOR VOLTAGE
AT 1mA DC TEST
CURRENT
TYPICAL
CAPACI-
TANCE
ENERGY
(2ms)
(V ) AT 200A
C
2
V
V
(8/20µs)
RMS
DC
SIZE
(mm)
34
V
V
W
I
MIN
(V)
V
MAX
(V)
V
C
f = 1MHz
(pF)
M(AC)
(V)
M(DC)
(V)
TM
TM
N(DC)
(V)
MODEL
NUMBER
(V)
(A)
(V)
V391DHB34
V421DHB34
385
420
510
560
550
600
40,000
40,000
545
604
680
663
1,000
1,130
3,500
34
610
748
3,000
V441DHB34
V481DHB34
V511DHB34
34
34
34
440
480
510
585
640
675
630
650
700
40,000
40,000
40,000
622
670
735
691
750
820
759
825
910
1,147
1,240
1,350
2,900
2,700
2,500
V551DHB34
34
550
710
755
40,000
778
864
910
949
1,404
2,390
V571DHB34
V661DHB34
V681DHB34
34
34
34
575
660
680
730
850
875
770
900
925
40,000
40,000
40,000
805
940
962
1000
1160
1173
1,480
1,720
1,777
2,200
2,000
1,900
1050
1068
V751DHB34
34
750
970
1050
40,000
1080
1200
1320
2,000
1,800
NOTE: Ratings are for each individual varistor element in dual assembly.
1. Average power dissipation of transients not to exceed 2.0W per varistor element (2 varistors per device).
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 > 132 VRMS
5. 40kA capability depends on applications rated up to 97VRMS. 30kA applies if > 97 VRMS.
.
.
.
111
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Varistor Products
High Energy Industrial
DHB34 Varistor Series
Power Dissipation Ratings
Should transients occur in rapid succession, the average power
dissipation result is simply 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 must be derated as shown
in Figure 1.
100
90
50
10
O
T
TIME
1
T
1
T
2
O
= Virtual Origin of Wave
1
T = Time From 10% to 90% of Peak
T
T
= Virtual Front time = 1.25 • t
= Virtual Time to Half Value (Impulse Duration)
1
2
Example: For an 8/20µs Current Waveform:
8µs = T = Virtual Front Time
1
20µs = T = Virtual Time to Half Value
2
FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM
Transient V-I Characteristics Curves
10000
TA = -55 C to 85C
Maximum Clamping Voltage
DHB34 Series
110 to 750V AC Rating
V751
V661 V681
V571
Voltage
Volts
V551
V511
1000
V481
V111
V131
V141
V441
V151
Current - AMPS
10
100
0.001
0.01
0.1
1
100
1000
10000
100000
V421
V391 V351 V331 V321 V301V271
V251 V201 V181
FIGURE 3. CLAMPING VOLTAGE FOR DHB34 SERIES
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Varistor Products
High Energy Industrial
DHB34 Varistor Series
Mechanical Dimensions
Pulse Rating Curves
50,000
DISC SIZE 34mm
V131DHB34 - V751DHB34
1
T max
2
20,000
10,000
37.5 max
10
5,000
2
5
10
10
10
2
10
6
10
2,000
1,000
3
4
500
200
56 max
100
50
12.7 typ
3.7 typ
INDEFINITE
20
20
10
Dia 3.81 +/- 0.08
S1
100
1,000
IMPULSE DURATION (µs)
10,000
25.4 +/- 0.5
S2
0.51 typ
FIGURE 4. SURGE CURRENT RATING CURVES FOR
V131DHB34 - V751DHB34
7.06 +/- 0.2
NOTE: If pulse ratings are exceeded, a shift of V
N(DC)
(at specified current)
Terminals Configuration: Terminals A & B are connected to one varistor
element. Terminals B & C connected to second varistor element.
Terminal materials: Tin Plated over copper.
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 pub-
N(DC)
lished specifications, but it does not prevent the device from continuing to
function, and to provide ample protection.
TABLEOF DIMENSIONS -
THICKNESS AND TERMINAL OFFSETS
S1
S2
+/- 1.15 mm
TYPE
T MAX
7.6
+/- 2.30mm
V111DHB34
V131DHB34
V141DHB34
V151DHB34
V181DHB34
2.65
2.85
3.00
3.15
3.25
5.50
5.70
6.00
6.30
6.50
7.8
8.2
8.8
Ordering Information
9.0
V 13 1DHB34
V201DHB34
V251DHB34
V271DHB34
V301DHB34
V321DHB34
9.2
7.8
8.7
8.9
9.3
3.35
3.00
3.25
3.50
3.66
6.70
6.00
6.50
7.00
7.24
VARISTOR DESIGNATOR
DISC SIZE (mm)
MAX AC
WORKING VOLTAGE
SERIES DESIGNATOR
RMS
(FIRST SIGNIFICANT DIGITS) V
M(AC)
V
VOLTAGE DECADE MULTIPLIER
M(AC)
V331DHB34
V351DHB34
V391DHB34
9.5
3.70
4.10
7.40
8.20
10.5
11.2
4.45
4.50
4.55
4.80
5.25
5.70
5.80
8.90
9.00
V421DHB34
V441DHB34
V481DHB34
V511DHB34
V551DHB34
11.3
11.5
12.2
13.4
14.6
9.10
9.60
10.50
11.40
11.60
V571DHB34
V661DHB34
V681DHB34
V751DHB34
14.8
17.20
17.5
6.65
7.00
7.35
13.30
14.00
14.70
18.20
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