V251CA40PS [LITTELFUSE]
RESISTOR, VOLTAGE DEPENDENT, 330V, 370J, CHASSIS MOUNT, CYLD;
| 型号： | V251CA40PS |
| 厂家： | 
LITTELFUSE |
| 描述： | RESISTOR, VOLTAGE DEPENDENT, 330V, 370J, CHASSIS MOUNT, CYLD 压敏电阻 |
| 文件： | 总8页 (文件大小：106K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Varistor Products
High Energy Industrial Disc
CA Varistor Series
The CA Series of transient surge suppressors are industrial high-energy
disc varistors (MOVs) intended for special applications requiring unique
electrical contact or packaging methods provided by the customer. The
electrode finish of these devices is solderable and can also be used with
pressure contacts. Discs of the same diameter may be stacked.
This series of industrial disc varistors are available in three diameter
sizes of 32, 40, and 60mm, with disc thicknesses ranging from 1.8mm
minimum to 32mm maximum. They offer a wide voltage range of from
250 to 2800 V
.
M(AC)RMS
For information on soldering considerations, refer to AN8820 update.
“Recommendations for Soldering Terminal Leads to MOV Varistor Discs”.
Features
• Provided In Disc Form For Unique Packaging By Customer
• Solderable Electrode Finish Options
• Pressure Contacts and/or Disc Stacking May be Utilized
• Standard Disc Sizes 32mm, 40mm, and 60mm Diameter
• Available Edge Passivation Insulation
• Wide Operating Voltage Range V
M(AC)RMS
250V to 2800V
• High Peak Pulse Current Range . . . . . . . . . . I
70,000A
20,000A to
TM
• Very High Energy Capability W
TM
. . . . . . . . . . . . . . .330J to 10,000J
• No Derating Up to 85oC Ambient
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Varistor Products
High Energy Industrial Disc
CA Varistor Series
Absolute Maximum Ratings For ratings of individual members of a series, see Device Ratings and Specifications chart
CA SERIES
UNITS
Continuous:
Steady State Applied Voltage:
AC Voltage Range (V
DC Voltage Range (V
Transient:
Peak Pulse Current (I
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 to 2800
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330 to 3500
V
V
M(AC)RMS
M(DC)
2
)
TM
For 8/20µs Current Wave (See Figure 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20,000 to 70,000
Single Pulse Energy Range
A
For 2ms Current Square Wave (W ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330 to 10,000
J
OC
TM
Operating Ambient Temperature Range (T ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 to 85
A
Storage Temperature Range (T
STG
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 to 85
OC
Temperature Coefficient (αV) of Clamping Voltage (V ) at Specified Test Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <0.01
%OC
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)
SPECIFICATIONS (25 C)
CONTINUOUS TRANSIENT
MAX
CLAMPING
VOLT V AT
C
200A
CURRENT
(8/20µs)
PEAK
CURRENT
(8/20µs)
TYPICAL
CAPACI-
TANCE
ENERGY
(2ms)
VARISTOR VOLTAGE AT
1mA DC TEST CURRENT
V
V
DC
RMS
SIZE
(mm)
32
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
(J)
(A)
(V)
V131CA32
V151CA32
130
150
250
175
200
330
200
220
20000
184
200
240
390
228
350
4700
32
20000
212
354
268
429
410
4000
V251CA32
V251CA40
V251CA60
32
40
60
330
370
880
20000
40000
50000
680
650
620
2500
5000
10000
V271CA32
V271CA40
V271CA60
32
40
60
275
320
420
480
510
575
660
369
420
560
640
675
730
850
360
400
950
20000
40000
50000
389
462
610
670
735
805
940
430
510
680
750
820
910
473
561
750
730
680
2200
4500
9000
V321CA32
V321CA40
V321CA60
32
40
60
390
460
1100
20000
40000
50000
850
830
760
1900
3800
7500
V421CA32
V421CA40
V421CA60
32
40
60
400
600
1500
25000
40000
70000
748
1200
1130
1060
1500
3000
6000
V481CA32
V481CA40
V481CA60
32
40
60
450
650
1600
25000
40000
70000
825
1300
1240
1160
1300
2700
5500
V511CA32
V511CA40
V511CA60
32
40
60
500
700
1800
25000
40000
70000
910
1440
1350
1300
1200
2500
5000
V571CA32
V571CA40
V571CA60
32
40
60
550
770
2100
25000
40000
70000
1000
1160
1600
1480
1420
1100
2200
4500
V661CA32
V661CA40
V661CA60
32
40
60
600
900
2300
25000
40000
70000
1050
1820
1720
1640
1000
2000
4000
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Varistor Products
High Energy Industrial Disc
CA Varistor Series
Device Ratings and Specifications (continued)
o
o
MAXIMUM RATINGS (85 C)
CONTINUOUS TRANSIENT
SPECIFICATIONS (25 C)
MAX
CLAMPING
VOLT V AT
C
200A
CURRENT
(8/20µs)
PEAK
CURRENT
(8/20µs)
TYPICAL
CAPACI-
TANCE
ENERGY
(2ms)
VARISTOR VOLTAGE AT
1mA DC TEST CURRENT
V
V
DC
RMS
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
(J)
(A)
(V)
V751CA32
V751CA40
V751CA60
32
40
60
750
970
700
1050
2600
25000
40000
70000
1080
1200
1320
2050
2000
1880
800
1800
3500
V881CA60
60
880
1150
3200
70000
1290
1500
1650
2340
2700
V112CA60
V142CA60
V172CA60
V202CA60
V242CA60
V282CA60
60
60
60
60
60
60
1100
1400
1700
2000
2400
2800
1400
1750
2150
2500
3000
3500
3800
5000
6000
7500
8600
10000
70000
70000
70000
70000
70000
70000
1620
2020
2500
2970
3510
4230
1800
2200
2700
3300
3900
4700
2060
2550
3030
3630
4290
5170
2940
3600
4300
5200
6200
7400
2200
1800
1500
1200
1000
800
NOTE: Average power dissipation of transients not exceed 1.5W, 2.0W and 2.5W for model 32mm, 40mm and 60mm, respectively.
1. Peak current applies to applications rated up to 115V . Peak Current is 30kA for applications greater than 115V
.
RMS
RMS
2. Peak current applies to applications rated up to 132V
. Peak Current is 30kA for applications greater than 132V
.
RMS
RMS
Power Dissipation Ratings
Should transients occur in rapid succession, the average power
dissipation result is 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. 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 of average power dissipation.
100
90
50
100
90
80
70
60
50
40
30
20
10
0
10
O
T
T
TIME
1
1
T
2
O
= Virtual Origin of Wave
T = Time From 10% to 90% of Peak
= Virtual Front Time = 1.25 • t
= Virtual Time to Half Value (Impulse Duration)
1
T
T
1
2
Example: For an 8/20µs Current Waveform:
8µs = T = Virtual Front Time
-55 50 60 70 80
90 100 110 120 130 140 150
o
1
20µs = T = Virtual Time to Half Value
2
AMBIENT TEMPERATURE ( C)
FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM
FIGURE 1. CURRENT, ENERGY AND POWER DERATING
CURVE
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Varistor Products
High Energy Industrial Disc
CA Varistor Series
Transient V-I Characteristics Curves
6,000
5,000
6,000
o
o
MAXIMUM CLAMPINGVOLTAGE
DISC SIZE 40mm
MAXIMUM CLAMPINGVOLTAGE
5,000
T = -55 C TO 85 C
A
DISC SIZE 32mm
4,000
4,000
130 TO 750 V
RATING
M(AC)
130 TO 750 V
o
RATING
M(AC)
o
3,000
2,000
3,000
T
= -55 C TO 85 C
A
V751CA40
V661CA40
V571CA40
2
V511CA40
V481CA40
V421CA40
2,000
V751CA32
V661CA32
V571CA32
V511CA32
V481CA32
V421CA32
1,000
900
800
700
600
1,000
900
800
700
600
V321CA32
V271CA32
V251CA32
V321CA40
V271CA40
V251CA40
500
500
400
400
V151CA40
300
200
V151CA32
V131CA32
300
200
V131CA40
-3
10
-2
10
-1
0
1
2
3
4
5
10
10
10
10
10
10
10
-2
10
-1
10
0
1
2
3
4
5
10
10
10
10
10
10
PEAK AMPERES
PEAK AMPERES
FIGURE 3. CLAMPING VOLTAGE FOR V131CA32 - C751CA32
FIGURE 4. CLAMPING VOLTAGE FOR V131CA40 - V751CA40
6,000
30,000
MAX CLAMPINGVOLTAGE
5,000
MAX CLAMPINGVOLTAGE
DISC SIZE 60mm
V511CA60
V481CA60
V421CA60
DISC SIZE 60mm
4,000
250 TO 880V
RATING
1100 TO 2800V
o
RATING
M(AC)
M(AC)
o
20,000
o
o
3,000
T
= -55 C TO 85 C
T = -55 C TO 85 C
A
A
2,000
V881CA60
V751CA60
V661CA60
V571CA60
10,000
9,000
8,000
7,000
6,000
1,000
900
800
700
600
V282CA60
V242CA60
V202CA60
5,000
4,000
V321CA60
V271CA60
V251CA60
500
400
V172CA60
V142CA60
3,000
300
200
V112CA60
2,000
-2
-1
10
0
1
2
3
4
5
10
-2
10
-1
10
0
1
2
3
4
5
10
10
10
10
10
10
10
10
10
10
10
10
PEAK AMPERES (A)
PEAK AMPERES (A)
FIGURE 5. CLAMPING VOLTAGE FOR V251CA60 - V881CA60
FIGURE 6. CLAMPING VOLTAGE FOR V112CA60 - V282CA60
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Varistor Products
High Energy Industrial Disc
CA Varistor Series
Pulse Rating Curves
50,000
20,000
50,000
DISC SIZE 32mm
V421CA32 -V751CA32
DISC SIZE 32mm
V131CA32 -V321CA32
1
1
20,000
2
2
5
10,000
5,000
10,000
5,000
10
10
10
6
10
2
10
2
5
2,000
1,000
2,000
10
10
10
10
3
4
6
3
4
1,000 10
10
500
200
500
10
200
100
50
100
50
20
10
20
INDEFINITE
INDEFINITE
10
20
100
1,000
10,000
20
100
1,000
IMPULSE DURATION (µs)
10,000
IMPULSE DURATION (µs)
FIGURE 7. SURGE CURRENT RATING CURVES FOR
V131CA32 - V321CA32
FIGURE 8. SURGE CURRENT RATING CURVES FOR
V421CA32 - V751CA32
50,000
50,000
1
1
DISC SIZE 40mm
2
DISC SIZE 60mm
V131CA40 -V751CA40
20,000
10,000
5,000
20,000
10,000
V251CA60 -V321CA60
2
10
10
4
5
10
2
2
3
10
5,000
10
10
3
4
5
2,000
1,000
500
2,000
1,000
500
10
10
10
10
200
200
100
6
100
50
10
6
10
50
INDEFINITE
INDEFINITE
20
10
20
10
20
20
100
1,000
IMPULSE DURATION (µs)
10,000
100
1,000
IMPULSE DURATION (µs)
10,000
FIGURE 9. SURGE CURRENT RATING CURVES FOR
V131CA40 - V751CA40
FIGURE 10. SURGE CURRENT RATING CURVES FOR
V251CA60 - V321CA60
100,000
DISC SIZE 60mm
V421CA60 -V282CA60
1
50,000
2
20,000
10
10,000
2
5,000
10
3
10
10
2,000
1,000
4
500
5
10
200
100
50
6
10
20
10
20
INDEFINITE
100
1,000
10,000
IMPULSE DURATION (µs)
FIGURE 11. SURGE CURRENT RATING CURVES FOR
V421CA60 - V282CA60
NOTE: If pulse ratings are exceeded, a shift of V
N(DC)
(at specified current) of more than ±10% could result. This type of shift, which normally results in a decrease of V ,
N(DC)
may result in the device not meeting the original published specifications, but does not prevent the device from continuing to function, and to provide ample protection.
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Varistor Products
High Energy Industrial Disc
CA Varistor Series
Series Dimensions
OPTIONAL
PASSIVATION
COLLAR
DISC DIAMETER
MILLIMETERS
ELECTRODE
2.0
INCHES
MODEL
SIZE
0.25
MIN
31.0
38.0
58.0
MAX
33.0
40.0
62.0
MIN
MAX
1.299
1.575
2.441
2
32
40
60
1.220
1.496
2.283
ELECTRODE
THICKNESS
DIAMETER
(SEE TABLE)
THICKNESS (32mmDISC MODELS)
MILLIMETERS INCHES
THICKNESS (40mmAND 60mmDISC MODELS)
MILLIMETERS INCHES
MODEL
V
RMS
V
MIN
1.4
1.7
1.6
1.8
2.1
2.9
3.1
3.5
3.8
4.4
5.1
-
MAX
2.4
2.8
2.2
2.5
2.9
3.9
4.3
4.7
5.1
6.0
6.9
-
MIN
0.071
0.083
0.063
0.071
0.083
0.114
0.122
0.138
0.150
0.173
0.240
-
MAX
0.094
0.110
0.087
0.098
0.114
0.154
0.169
0.185
0.201
0.236
0.327
-
MIN
MAX
2.8
MIN
MAX
M(AC)
130†
150†
250
1.4
1.5
0.055
0.06
0.134
0.150
0.106
0.118
0.138
0.185
0.205
0.224
0.248
0.283
0.327
0.406
0.512
0.630
0.748
0.886
1.063
1.260
3.0
2.0
2.7
0.079
0.087
0.102
0.138
0.150
0.165
0.181
0.209
0.240
0.287
0.362
0.453
0.551
0.669
0.787
0.945
275
2.2
3.0
320
2.6
3.5
420
3.5
4.7
480
3.8
5.2
510
4.2
5.7
575
4.6
6.3
660
5.3
7.2
750
6.1
8.3
880††
1100††
1400††
1700††
2000††
2400††
2800††
7.3
10.3
13.0
16.0
19.0
22.5
27.0
32.0
-
-
-
-
9.2
-
-
-
-
11.5
14.0
17.0
20.0
24.0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
†
Available in 32mm and 40mm only.
††Available in 60mm size only.
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Varistor Products
High Energy Industrial Disc
CA Varistor Series
Encapsulated Recommendations
MODEL
NUMBER
SIZE
(mm)
TYPICAL DISC
WEIGHT (GRAMS)
After lead attachment, the disc/lead assembly may be coated or
encapsulated in a package to provide electrical insulation and isolation
from environmental contamination as required by the application.
Coating/Filler materials for containers may include silicones,
polyurethanes, and some epoxy resins.Two examples of acceptable
polyurethanes are Dexter Hysol (US7013, parts A and B) and Rhenatech
(resin 4714, hardener 4900), or their equivalents. Materials containing
halogens, sulfides, or alkalines are not recommended.
V131CA32
V131CA40
32
40
9
21
V151CA32
V151CA40
32
40
11
23
V251CA32
V251CA40
V251CA60
32
40
60
8
17
39
Electrode Metallization
V271CA32
V271CA40
V271CA60
32
40
60
10
18
42
The standard CA Series is supplied with sintered silver electrodes on
CA32 devices and arc-sprayed copper-over-aluminum electrodes for CA40
and CA60 series. CA40 parts are also available with sintered silver elec-
trode, see “Ordering information.” In general, when discs are stacked to
attain a specific operating voltage or energy capability, the copper finish is
typically chosen. Likewise, the copper finish is used with high temperature
lead attach soldering operations (wave solder). The silver metallization is
typically used for solder reflow lead attach operations (I-R, Vapour-Phase).
The recommended temperature profile of a belt-fed convection oven is
shown in Figure 13.
V321CA32
V321CA40
V321CA60
V421CA32
V421CA40
V421CA60
V481CA32
V481CA40
V481CA60
V511CA32
V511CA40
V511CA60
V571CA32
V571CA40
V571CA60
V661CA32
V661CA40
V661CA60
V751CA32
V751CA40
V751CA60
V881CA60
32
40
60
32
40
60
32
40
60
32
40
60
32
40
60
32
40
60
32
40
60
60
11
22
50
15
28
66
16
31
71
18
35
80
20
38
88
23
44
101
26
51
116
141
250
200
150
100
50
0
0
100 200 300 400 500 600 700
TIME (SEC)
800 900
FIGURE 13. TYPICAL BELT OVEN TEMPERATURE PROFILE
Stacking and Contact Pressure
Recommendations
When applications require the stacking of Littelfuse CA discs or when
electrical connection is made by pressure contacts, the minimum pres-
sure applied to the disc electrode surface should be 2.2kGs (5 pounds).
The maximum recommended pressure applied to the disc electrode is
dependent upon diameter size and is given in the following table.
V112CA60
V142CA60
V172CA60
V202CA60
V242CA60
V282CA60
60
60
60
60
60
60
178
220
265
317
377
450
MODEL SIZE (mm)
MAXIMUM PRESSURE
2
2
32
40
60
16N/CM (23LBs/IN )
2
2
8N/CM (11.5LBs/IN )
Passivation Layer
2
2
The standard CA Series is supplied with passivation layer around the
outside perimeter of the disc forming an electrical insulator as detailed in
the dimensional drawing. The CA Series is also available without a
passivation layer for applications where the customer provides a suitable
encapsulation or potting material as recommended below.
(See Ordering Information.)
4N/CM (5.7LBs/IN )
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Varistor Products
High Energy Industrial Disc
CA Varistor Series
Ordering Information
The CA Series offers optional electrode finish materials and a glass
passivation edge option which must be designated. When ordering, the
code letters suffix as shown in the following table must be selected and
appended to the standard Model number.
ELECTRODE
MATERIAL
NON-PASSIVATED
DISC
PASSIVATED
DISC
Arc-Sprayed Copper
Sintered Silver
NC
NS
PC
PS
2
NOTES:
1. The 60mm disc types V112CA60 to V282CA60, inclusive, are only
supplied with glass passivation and arc-sprayed copper finish
electrodes. (That is, with the “PC” option suffix code.)
Packaging and Shipping
The CA Series is supplied in bulk for shipment. Discs are packaged in
compartmentalized cartons to protect from scratching or edge-chipping
during shipment.
2. The 32mm size discs are only available with silver metallization.
Note also that the CA Series receives no branding on the disc itself.
V 25 1 CA 40 P S
SILVER ELECTRODE
OPTION DESIGNATOR
VARISTOR DESIGNATOR
PASSIVATION OPTION DESIGNATOR
DISC SIZE (mm)DIAMETER
MAX AC
WORKING VOLTAGE
RMS
(FIRST SIGNIFICANT DIGITS) V
M(AC)
V
VOLTAGE DECADE MULTIPLIER
M(AC)
SERIES DESIGNATOR
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相关型号：
V251CA60
Varistor Products - High Energy Industrial DiscWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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LITTELFUSE
V251CA60
RESISTOR, VOLTAGE DEPENDENT, 330V, 880J, CHASSIS MOUNTWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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RENESAS
V251CA60NC
暂无描述Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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LITTELFUSE
V251CA60NS
RESISTOR, VOLTAGE DEPENDENT, 330V, 880J, CHASSIS MOUNTWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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RENESAS
V251CA60PC
RESISTOR, VOLTAGE DEPENDENT, 330V, 880J, CHASSIS MOUNTWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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RENESAS
V251CA60PC
RESISTOR, VOLTAGE DEPENDENT, 330V, 880J, CHASSIS MOUNTWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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LITTELFUSE
V251CA60PS
RESISTOR, VOLTAGE DEPENDENT, 330V, 880J, CHASSIS MOUNT, CYLDWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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LITTELFUSE
V251DA40
Varistor Products - High Energy IndustrialWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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LITTELFUSE
V251DB40
Industrial High Energy Terminal VaristorsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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LITTELFUSE
V251DHB34
Varistor Products - High Energy IndustrialWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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LITTELFUSE
V251H0H4-1Z400-1XX-XTC1
Rocker Switch, SPST, (on)-off, Maintained, Quick Connect Terminal, Rocker Actuator, Panel Mount,Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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Carling Techn
V251H0H4-6Z4XX-300-XTE1
Rocker Switch, SPST, (on)-off, Maintained, Quick Connect Terminal, Rocker Actuator, Panel Mount,Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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Carling Techn
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