V20E275PL1T7 Datasheet, PDF (3/16 Pages) Littelfuse – Radial Lead Varistors UltraMOVTM Series

Varistor Products
Radial Lead Varistors > UltraMOV^TM Series
UltraMOV™ Series Ratings & Specifications (Continued...)
Part Number
V20E460P
V07E510P
V10E510P
V14E510P
V20E510P
V10E550P
V14E550P
V20E550P
V10E625P
V14E625P
V20E625P
Branding
P20V460
P7V510
P10V510
P14V510
P20V510
P10V550
P14V550
P20V550
P10V625
P14V625
P20V625
Maximum Rating (85°C)
Continuous
Transient
RMS DC Energy
Volts Volts 2ms
Peak Current
8 x 20µs
V_M(AC)
(V)
460
510
510
510
510
550
550
550
625
625
625
V_M(DC)
(V)
615
670
670
670
670
745
745
745
825
825
825
W_TM
I_TM
I_TM
1 x Pulse 2 x Pulse
(J)
(A)
(A)
360
10000 6500
52
1750
1200
92
3500
2500
185
6000
4500
365
10000 6500
95
3500
2500
190
6000
4500
370
10000 6500
100
3500
2500
200
6000
4500
400
10000 6500
Specifications (25°C)
Varistor Voltage
at 1mA DC Test
Current
Maximum
Clamping
Voltage
8 x 20µs
V_NOM
Min
V_NOM
Max
V_C
I_PK
(V)
(V)
(V)
(A)
675
825 1240 100
738
902 1355 10
738
902 1355 25
738
902 1355 50
738
902 1355 100
819 1001 1500 25
819 1001 1500 50
819 1001 1500 100
900 1100 1650 25
900 1100 1650 50
900 1100 1650 100
Typical
Capacitance
f = 1MHz
(pF)
400
40
110
200
350
100
180
300
90
160
250
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
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
90
80
70
60
50
40
30
20
10
0
-55 50 60 70 80 90 100 110 120 130 140 150
AMBIENTTEMPERATURE ( ^oC)
FIGURE 1. CURRENT, ENERGY AND POWER DERATING
Peak Pulse CuCrrUeRnVtETest Waveform
100
90
80
70
60
50
40
30
20
10
0
-55 50 60 70 80 90 100 110 120 130 140 150
AMBIENTTEMPERATURE ( ^oC)
FIGURE 1. CURRENT, ENERGY AND POWER DERATING
CURVE
100
90
50
10
O₁
Figure 2
T
T₁
T₂
TIME
0₁ = Virtual Origin of Wave
T = Time from 10% to 90% of Peak
T₁ = Rise Time = 1.25 x T
T₂ = Decay Time
Example - For an 8/20 µs Current Waveform:
8µs = T₁ = Rise Time
20µs = T₂ = Decay Time
© 2014 Littelfuse, Inc.
O₁ = Virtual Origin of Wave
Specifications are subject to chan_Tge₌wit_Tho_imut_eno_Ftic_re_o. _{m 10% to 90% of Peak}
Revised: 11/12/14
T₁ = Virtual Front time = 1.25 • t
T₂ = Virtual Time to Half Value (Impulse Duration)