C&H Technology 400U(R) Series - Manual (Page 5)

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4 Revision: 23-Jun-08
400U(R) Series
Vishay High Power Products Standard Recovery Diodes
(Stud Version), 400 A
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
2000
3000
4000
5000
6000
7000
8000
1 10 100
400U/R
At Any Rated Load Condition And With
Rated Vrrm Applied Following Surge.
Initial Tj = 190°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
Peak Half Sine Wave Forward Current (A)
Number Of Equal Amplitude Half Cycle Current Pulses (N)
1000
2000
3000
4000
5000
6000
7000
8000
9000
0.01 0.1 1
Versus Pulse Train Duration.
Maximum Non Repetitive Surge Current
400U/R
Initial Tj = 190°C
No Voltage Reapplied
Rated Vrrm Reapplied
Peak Half Sine Wave Forward Current (A)
Pulse Train Duration (s)
100
1000
10000
0.5 1 1.5 2 2.5
400U/R
Tj = 25°C
Tj = 190°C
Instantaneous Forward Voltage (V)
Instantaneous Forward Current (A)
0.001
0.01
0.1
1
0.001 0.01 0.1 1 10
400U/R
Steady State Value:
RthJC = 0.15 K/W
(DC Operation)
Square Wave Pulse Duration (s)
Transient Thermal Impedance Z
thJC
(K/W)