V14P275L1T Datasheet, PDF (3/11 Pages) Littelfuse – UltraMOV™ Varistor Series

Varistor Products
Radial Lead Varistors > UltraMOV^TM Series
UltraMOV™ Series Ratings & Specifications (Continued...)
Maximum Rating (85°C)
Specifications (25°C)
Part Number Branding
Continuous
RMS DC
Volts Volts
V_M(AC)
(V)
V_M(DC)
(V)
Energy
2ms
W_TM
(J)
Transient
Peak Current
8 x 20μs
I
I
TM
TM
1 x Pulse 2 x Pulse
(A)
(A)
Varistor Voltage
at 1mA DC Test
Current
V
NOM
Min
(V)
V
NOM
Max
(V)
Maximum
Clamping
Voltage
8 x 20μs
V_C
I_PK
(V)
(A)
V07E460P
P7V460 460
615
48
1750
1200
675
825 1240 10
V10E460P
P10V460 460
615
90
3500
2500
675
825 1240 25
V14E460P
P14V460 460
615
180
6000
4500
675
825 1240 50
V20E460P
P20V460 460
615
360
10000 6500
675
825 1240 100
V10E510P
P10V510 510
670
80
3500
2500
738
902 1355 25
V14E510P
P14V510 510
670
165
6000
4500
738
902 1355 50
V20E510P P20V510 510
670
325
10000 6500
738
902 1355 100
V10E550P P10V550 550
745
90
3500
2500
819 1001 1500 25
V14E550P P14V550 550
745
180
6000
4500
819 1001 1500 50
V20E550P P20V550 550
745
360
10000 6500
819 1001 1500 100
V10E625P
P10V625 625
825
100
3500
2500
900
1100 1650 25
V14E625P
P14V625 625
825
200
6000
4500
900
1100 1650 50
V20E625P
P20V625 625
825
400
10000 6500
900
1100 1650 100
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.
Typical
Capacitance
f = 1MHz
(pF)
45
120
220
400
110
200
350
100
180
300
90
160
250
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 device. Furthermore, the operating values
need to be derated at high temperatures as shown in
above. 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.
Current Energy and Power Derating Curve
100
90
80
70
60
50
40
30
20
10
0
-55 50 60 70 80 90 100 110 120 130 140 150
Figure 1
AMBIENT TEMPERATURE ( ^oC)
Peak Pulse Current Test Waveform
100
90
50
10
O₁
Figure 2
T
T₁
T₂
TIME
0 = Virtual Origin of Wave
1
T = Time from 10% to 90% of Peak
T = Rise Time = 1.25 x T
1
T₂ = Decay Time
Example - For an 8/20 μs Current Waveform:
8μs = T₁ = Rise Time
20μs = T = Decay Time
2
©2010 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/tmov.html for current information.
Revision: August 4, 2010
UltraMOV™ Varistor Series