Radial Lead Varistors > UltraMOV
®
Varistor Series
Metal-Oxide Varistors
(MOVs)
UltraMOV
®
Varistor Series
Description
RoHS
The UltraMOV
®
Metal Oxide Varistor Series is designed for
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 Surge Protection Device (SPD), 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. UltraMOV
®
varistor 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.
Agency Approvals
Agency
Agency Approval
Agency File
Number
UL1449
CECC 42201-006
IEC 61051-1
IEC 61051-2
IEC 60950-1 (Annex Q) for 14mm
and 20mm only
CSA C22.2 No. 1
CECC 42201-006
IEC 61051-1
IEC 61051-2
IEC 60950-1 (Annex Q) for 10mm,
14mm and 20mm only
IEC/EN 61051-1
IEC 61051-2
IEC 61051-2-2
IEC 60950-1 (Annex Q) for 10mm,
14mm and 20mm only
E3201163
1168951
Features
• Lead–free, Halogen-Free • Custom voltage
and RoHS compliant
types available
• High peak surge
• Standard lead form and
current rating (I
TM
) up
lead space options
to 10kA, single 8 x
• High operating
20 pulse, (20mm)
temperature range up to
125°C (phenolic coating
• Standard operating
option). 10mm, 14mm
voltage range compatible
and 20mm devices are
with common AC
UL Recognized and
line voltages (130
TUV certified with 800V
V
AC
to 625 V
AC
)
isolation voltage rating
• Characterized for
maximum standby
current (Leakage)
Absolute Maximum Ratings
• For ratings of individual members of a series, see Device Ratings and Specifications chart
91788
IECQ-C
1
BSI 14.0001
J 50324242
2
Notes:
. Epoxy coated only.
2. Phenolic coated only.
3. All epoxy coated sizes are UL Recognized while only 10mm, 14mm, and 20mm phenolic
coated parts are UL recognized.
Continuous
Steady State Applied Voltage:
AC Voltage Range (V
M(AC)RMS
)
Transients:
Single-Pulse Peak Current (I
TM
) 8x20µs Wave (See Figure 2)
Single-Pulse Energy Range (W
TM
) 2ms Square Wave
Operating Ambient Temperature Range (T
A
) for Epoxy coated
Operating Ambient Temperature Range (T
A
) for Phenolic coated
Storage Temperature Range (T
STG
) for Epoxy coated
Storage Temperature Range (T
STG
) for Phenolic coated
Temperature Coefficient (a
V
) of Clamping Voltage (V
C
) at Specified Test Current
Hi-Pot Encapsulation (COATING Isolation Voltage Capability)
COATING Insulation Resistance
UltraMOV
®
Varistor Series
130 to 625
Units
V
1,750 to 10,000
12.5 to 400
-55 to +85
-55 to +125
-55 to +125
-55 to +150
<0.01
2500
1000
A
J
ºC
ºC
ºC
ºC
%/ºC
V
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.
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 09/14/17
Radial Lead Varistors > UltraMOV
®
Varistor Series
Metal-Oxide Varistors
(MOVs)
Ratings & Specifications
(Continued...)
Epoxy Coated
Models
Phenolic Coated
Models
Maximum Rating (85°C)
Continuous
Transient
RMS
Volts
V
M(AC)
(V)
460
460
510
510
510
510
550
550
550
625
625
625
DC
Volts
V
M(DC)
(V)
615
615
670
670
670
670
745
745
745
825
825
825
Energy
2ms
W
TM
(J)
180
360
52
92
185
365
95
190
370
100
200
400
Peak Current
8 x 20µs
I
TM
1x
Pulse
(A)
6000
10000
1750
3500
6000
10000
3500
6000
10000
3500
6000
10000
I
TM
2 x Pulse
(A)
4500
6500
1200
2500
4500
6500
2500
4500
6500
2500
4500
6500
Specifications (25°C)
Maximum
Varistor Voltage
Clamping
Typical
at 1mA DC Test
Voltage
Capacitance
Current
8 x 20µs
V
NOM
Min
(V)
675
675
738
738
738
738
819
819
819
900
900
900
V
NOM
Max
(V)
825
825
902
902
902
902
1001
1001
1001
1100
1100
1100
V
C
(V)
1240
1240
1355
1355
1355
1355
1500
1500
1500
1650
1650
1650
I
PK
(A)
50
100
10
25
50
100
25
50
100
25
50
100
f
= 1MHz
(pF)
220
400
40
110
200
350
100
180
300
90
160
250
Part
Branding
Number
V14E460P
V20E460P
V07E510P
V10E510P
V14E510P
V20E510P
V10E550P
V14E550P
V20E550P
V10E625P
V14E625P
V20E625P
P14V460
P20V460
P7V510
P10V510
P14V510
P20V510
P10V550
P14V550
P20V550
P10V625
P14V625
P20V625
Part
Number
V14P460P
V20P460P
V07P510P
V10P510P
V14P510P
V20P510P
V10P550P
V14P550P
V20P550P
V10P625P
V14P625P
V20P625P
Branding
P14P460
P20P460
P7P510
P10P510
P14P510
P20P510
P10P550
P14P550
P20P550
P10P625
P14P625
P20P625
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.
Current Energy and Power Dissipation Ratings
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
developed must be within the specifications shown on the
Device Ratings and Specifications Table for the specific
Figure 1A - Power Derating for Epoxy Coated
100
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
100
PERCENT OF RATED VALUE
80
70
60
50
40
30
20
10
0
-55
50
60
70
80
90 100 110 120
AMBIENT TEMPERATURE (
o
C)
130
140 150
PERCENT OF RATED VALUE
90
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)
FIGURE 1. CURRENT, ENERGY AND POWER DERATING
Peak Pulse Current Test Waveform
CURVE
FIGURE 1. CURRENT, ENERGY AND POWER DERATING
CURVE
PERCENT OF PEAK VALUE
100
90
50
10
O
1
T
T
1
T
2
TIME
0
1
= Virtual Origin of Wave
T = Time from 10% to 90% of Peak
T
1
= Rise Time = 1.25 x T
T
2
= Decay Time
Example
- For an 8/20
µs
Current Waveform:
8µs = T
1
= Rise Time
20µs = T
2
= Decay Time
Figure 2
© 2017 Littelfuse, Inc.
O
1
without notice.
Specifications are subject to change
= Virtual Origin of Wave
T = Time From 10% to 90%
Revised: 09/14/17
of Peak
T
1
= Virtual Front time = 1.25 • t
T = Virtual Time to Half Value (Impulse Duration)
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