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V20E250

Part # V20E250
Description VARISTOR 351V 10KA DISC 20MM
Category Microcircuit
Availability Out of Stock
Qty 0
Qty Price
1 + $1.59080

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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

Varistor Products
©2012 Littelfuse, Inc.
Revision: February 9, 2012
UltraMOV™ Varistor Series
Radial Lead Varistors > UltraMOV
TM
Series
TMOV
®
/iTMOV
®
SERIES
ULTRAMOV
™
Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/tmov.html for current information.
Description
The UltraMOV™ Metal Oxide Varistor Series is designed
f
or applications requiring high peak surge current ratings
and high energy absorption capability. UltraMOV™
varistors are primarily intended for use in AC Line Voltage
applications such as Transient Voltage Surge Suppressors
(TVSS), Uninterruptable Power Supplies (UPS), AC Power
Taps, AC Power Meters, or other products that require
voltage clamping of high transient surge currents from
sources such as lightning, inductive load switching, or
capacitor bank switching.
These devices are produced in radial lead package sizes of
7, 10,14 and 20mm and offered in a variety of lead forms.
UltraMOVs™ are manufactured with recognized epoxy
encapsulation and are rated for ambient temperatures up
to 85ºC with no derating. This Series is LASER-branded and
is supplied in bulk, ammo pack (fan-fold), or tape and reel
packaging.
Features
t L
ead–free, Halogen-Free
and RoHS compliant.
t )JHIQFBLTVSHF
current rating (I
TM
) up
to 10kA, single 8 x
20 pulse, (20mm)
t 4UBOEBSEPQFSBUJOH
voltage range compatible
with common AC
line voltages (130
V
AC
to 625 V
AC
)
t $IBSBDUFSJ[FEGPS
maximum standby
current (Leakage)
t $VTUPNWPMUBHF
types available
t 4UBOEBSEMFBEGPSNBOE
lead space options
Agency Approvals
Absolute Maximum Ratings
t'PSSBUJOHTPGJOEJWJEVBMNFNCFSTPGBTFSJFTTFF%FWJDF3BUJOHTBOE4QFDJmDBUJPOTDIBSU
Agency Agency File Number
E320116
116895
LR91788
42201-006
Continuous UltraMOV™ Series Units
Steady State Applied Voltage:
%$7PMUBHF3BOHF7
M(AC)RMS
) 130 to 625 V
Transients:
Single-Pulse Peak Current (I
TM
) 8x20μs Wave (See Figure 2) 1,750 to 10,000 A
Single-Pulse Energy Range (W
TM
) 2ms Square Wave 12.5 to 400 J
Operating Ambient Temperature Range (T
A
) -55 to +85 ºC
Storage Temperature Range (T
STG
) -55 to +125 ºC
5FNQFSBUVSF$PFGmDJFOUB
V
) of Clamping Voltage (V
C
BU4QFDJmFE5FTU$VSSFOU <0.01 %/ºC
Hi-Pot Encapsulation (COATING Isolation Voltage Capability) 2500 V
COATING Insulation Resistance 1000 MΩ
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.
UltraMOV™ Varistor Series
RoHS
Varistor Products
©2012 Littelfuse, Inc.
Revision: February 9, 2012
UltraMOV™ Varistor Series
Radial Lead Varistors > UltraMOV
TM
Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/tmov.html for current information.
UltraMOV™ Series Ratings & Specifications
Part Number Branding
Maximum Rating (85°C) Specifications (25°C)
Continuous Transient
Varistor Voltage
at 1mA DC Test
Current
Maximum
Clamping
Voltage
8 x 20μs
Typical
Capacitance
RMS
Volts
DC
Volts
Energy
2ms
Peak Current
8 x 20μs
V
M(AC)
V
.%$
W
TM
I
TM
1 x Pulse
I
TM
2 x Pulse
V
NOM
Min
V
NOM
Max
V
C
I
PK
f = 1MHz
(V) (V) (J) (A) (A) (V) (V) (V) (A) (pF)
V07E130P P7V130 130 170 12.5 1750 1200 184 226 340 10 180
V1
0E130P P10V130 130 170 25 3500 2500 184 226 340 25 450
V14E130P P14V130 130 170 50 6000 4500 184 226 340 50 1000
V20E130P P20V130 130 170 100 10000 6500 184 226 340 100 1900
V07E140P P7V140 140 180 13.5 1750 1200 200 240 360 10 160
V10E140P P10V140 140 180 27.5 3500 2500 200 240 360 25 400
V14E140P P14V140 140 180 55 6000 4500 200 240 360 50 900
V20E140P P20V140 140 180 110 10000 6500 200 240 360 100 1750
V07E150P P7V150 150 200 15 1750 1200 216 264 395 10 150
V10E150P P10V150 150 200 30 3500 2500 216 264 395 25 360
V14E150P P14V150 150 200 60 6000 4500 216 264 395 50 800
V20E150P P20V150 150 200 120 10000 6500 216 264 395 100 1600
V07E175P P7V175 175 225 17 1750 1200 243 297 455 10 130
V10E175P P10V175 175 225 35 3500 2500 243 297 455 25 350
V14E175P P14V175 175 225 70 6000 4500 243 297 455 50 700
V20E175P P20V175 175 225 135 10000 6500 243 297 455 100 1400
V07E230P P7V230 230 300 20 1750 1200 324 396 595 10 100
V10E230P P10V230 230 300 42 3500 2500 324 396 595 25 250
V14E230P P14V230 230 300 80 6000 4500 324 396 595 50 550
V20E230P P20V230 230 300 160 10000 6500 324 396 595 100 1100
V07E250P P7V250 250 320 25 1750 1200 351 429 650 10 90
V10E250P P10V250 250 320 50 3500 2500 351 429 650 25 220
V14E250P P14V250 250 320 100 6000 4500 351 429 650 50 500
V20E250P P20V250 250 320 170 10000 6500 351 429 650 100 1000
V07E275P P7V275 275 350 28 1750 1200 387 473 710 10 80
V10E275P P10V275 275 350 55 3500 2500 387 473 710 25 200
V14E275P P14V275 275 350 110 6000 4500 387 473 710 50 450
V20E275P P20V275 275 350 190 10000 6500 387 473 710 100 900
V07E300P P7V300 300 385 30 1750 1200 423 517 775 10 70
V10E300P P10V300 300 385 60 3500 2500 423 517 775 25 180
V14E300P P14V300 300 385 125 6000 4500 423 517 775 50 400
V20E300P P20V300 300 385 250 10000 6500 423 517 775 100 800
V07E320P P7V320 320 420 32 1750 1200 459 561 840 10 65
V10E320P P10V320 320 420 67 3500 2500 459 561 840 25 170
V14E320P P14V320 320 420 136 6000 4500 459 561 840 50 380
V20E320P P20V320 320 420 273 10000 6500 459 561 840 100 750
V07E385P P7V385 385 505 36 1750 1200 558 682 1025 10 60
V10E385P P10V385 385 505 75 3500 2500 558 682 1025 25 160
V14E385P P14V385 385 505 150 6000 4500 558 682 1025 50 360
V20E385P P20V385 385 505 300 10000 6500 558 682 1025 100 700
V07E420P P7V420 420 560 40 1750 1200 612 748 1120 10 55
V10E420P P10V420 420 560 80 3500 2500 612 748 1120 25 140
V14E420P P14V420 420 560 160 6000 4500 612 748 1120 50 300
V20E420P P20V420 420 560 320 10000 6500 612 748 1120 100 600
V07E440P P7V440 440 585 44 1750 1200 643 787 1180 10 50
V10E440P P10V440 440 585 85 3500 2500 643 787 1180 25 130
V14E440P P14V440 440 585 170 6000 4500 643 787 1180 50 260
V20E440P P20V440 440 585 340 10000 6500 643 787 1180 100 500
V07E460P P7V460 460 615 48 1750 1200 675 825 1240 10 45
V10E460P P10V460 460 615 90 3500 2500 675 825 1240 25 120
Varistor Products
©2012 Littelfuse, Inc.
Revision: February 9, 2012
UltraMOV™ Varistor Series
Radial Lead Varistors > UltraMOV
TM
Series
TMOV
®
/iTMOV
®
SERIES
ULTRAMOV
™
Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/tmov.html for current information.
Part Number Branding
Maximum Rating (85°C) Specifications (25°C)
Continuous Transient
Varistor Voltage
at 1mA DC Test
Current
Maximum
Clamping
Voltage
8 x 20μs
Typical
Capacitance
RMS
Volts
DC
Volts
Energy
2ms
Peak Current
8 x 20μs
V
M(AC)
V
.%$
W
TM
I
TM
1 x Pulse
I
TM
2 x Pulse
V
NOM
Min
V
NOM
Max
V
C
I
PK
f = 1MHz
(V) (V) (J) (A) (A) (V) (V) (V) (A) (pF)
V14E460P P14V460 460 615 180 6000 4500 675 825 1240 50 220
V20E460P
P20V460 460 615 360 10000 6500 675 825 1240 100 400
V07E510P P7V510 510 670 52 1750 1200 738 902 1355 10 40
V10E510P P10V510 510 670 92 3500 2500 738 902 1355 25 110
V14E510P P14V510 510 670 185 6000 4500 738 902 1355 50 200
V20E510P P20V510 510 670 365 10000 6500 738 902 1355 100 350
V10E550P P10V550 550 745 95 3500 2500 819 1001 1500 25 100
V14E550P P14V550 550 745 190 6000 4500 819 1001 1500 50 180
V20E550P P20V550 550 745 370 10000 6500 819 1001 1500 100 300
V10E625P P10V625 625 825 100 3500 2500 900 1100 1650 25 90
V14E625P P14V625 625 825 200 6000 4500 900 1100 1650 50 160
V20E625P P20V625 625 825 400 10000 6500 900 1100 1650 100 250
UltraMOV™ Series Ratings & Specifications (Continued...)
NOTE: 1. Average power dissipation of transients should not exceed 0.25W, 0.4W, 0.6W and 1.0W for 7mm, 10mm, 14mm, and 20mm model sizes, respectively.
Should transients occur in rapid succession, the average
power dissipation is the energy (watt-seconds) per pulse
times the number of pulses per second. The power so
EFWFMPQFENVTUCFXJUIJOUIFTQFDJmDBUJPOTTIPXOPOUIF
%FWJDF3BUJOHTBOE4QFDJmDBUJPOT5BCMFGPSUIFTQFDJmD
Current Energy and Power Dissipation Ratings
Peak Pulse Current Test Waveform
100
90
50
10
O
1
T
T
1
T
2
TIME
PERCENT OF PEAK VALUE
0
1
= Virtual Origin of Wave
T = Time from 10% to 90% of Peak
T
1
= Rise Time = 1.25 x T
T
2
%FDBZ5JNF
Example - For an 8/20 μs Current Waveform:
8μs = T
1
= Rise Time
20μs = T
2
%FDBZ5JNF
100
90
80
70
60
50
40
30
20
10
0
-55 50 60 70 80 90 100 110 120 130 140 150
AMBIENT TEMPERATURE (
o
C)
PERCENT OF RATED VALUE
Figure 1A - Power Derating for Epoxy Coated
Figure 2
100
90
80
70
60
50
40
30
20
10
0
-55 50 60 70 80 90 100 110 120 130 140 150
AMBIENT TEMPERATURE (
o
C)
PERCENT OF RATED VALUE
device. The operating values of a MOV need to be derated
at high temperatures as shown above. Because varistors
only dissipate a relatively small amount of average power
they are not suitable for repetitive applications that involve
substantial amounts of average power dissipation.
Figure 1B - Power Derating for Phenolic Coated
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