VS-300U(R) Series
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Vishay Semiconductors
Revision: 23-Mar-17
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Document Number: 93508
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Fig. 5 - Maximum Non-Repetitive Surge Current Fig. 6 - Maximum Non-Repetitive Surge Current
Fig. 7 - Forward Voltage Drop Characteristics
Fig. 8 - Thermal Impedance Z
thJC
Characteristic
Peak Half Sine Wave Forward Current (A)
Number Of Equal Amplitude Half Cycle Current Pulses (N)
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
11010
Initial Tj = 200°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
At Any Rated Load Condition And With
Rated Vrrm Applied Following Surge.
300U40AM20
Pulse Train Duration (s)
Peak Half Sine Wave Forward Current (A)
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
0.01 0.1 1
Maximum Non Repetitive Surge Current
Initial Tj = 200°C
No Voltage Reapplied
Rated Vrrm Reapplied
Versus Pulse Train Duration.
300U40AM20
Instantaneous Forward Voltage (V)
Instantaneous Forward Current (A)
10
100
1000
10000
0 0.5 1 1.5 2 2.5 3
Tj = 25°C
Tj = 200°C
300U40AM20
Square Wave Pulse Duration (s)
Transient Thermal Impedance Z
thJC
(K/W)
0.001
0.01
0.1
1
0.0001 0.001 0.01 0.1 1 10
Steady State Value
RthJC = 0.18 K/W
(DC Operation)
300U40AM20
