VS-70HF(R) Series
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Vishay Semiconductors
Revision: 06-Mar-17
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Document Number: 93521
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Fig. 9 - Maximum Non-Repetitive Surge Current
Fig. 10 - Maximum Non-Repetitive Surge Current
Fig. 11 - Forward Voltage Drop Characteristics
Fig. 12 - Thermal Impedance Z
thJC
Characteristics
Fig. 13 - Forward Voltage Drop Characteristics
300
400
500
600
700
800
900
1000
1100
1 10 100
Peak Half Sine Wave Forward Current (A)
Number Of Equal Amplitude
Half Cycle Current Pulses (N)
70HF(R) series
At any rated load condition and with rated V
RRM
applied following surge.
Initial T
J
= T
J
max.
at 60 Hz 0.0083 s
at 50 Hz 0.0100 s
200
300
400
500
600
700
800
900
1000
1100
1200
0.01 0.1 1
Peak Half Sine Wave Forward Current (A)
Pulse Train Duration (s)
Maximum non repetitive surge current
70HF(R) series
vs. pulse train duration.
Initial T
J
= T
J
max.
No voltage reapplied
Rated V
RRM
reapplied
1
10
100
1000
0 0.5 1 1.5 2 2.5 3
T
J
= 25 °C
Instantaneous Forward Current (A)
Instantaneous Forward Voltage (V)
T
J
= T
J
max.
70HF(R) series
0.001
0.01
0.1
1
10
0.0001 0.001 0.01 0.1 1 10
Square Wave Pulse Duration (s)
Z
thJC
- Transient Thermal Impedance (K/W)
Steady state value
R
thJC
= 0.45 K/W
(DC operation)
70HF(R) series
Instantaneous Forward Voltage (V)
Instantaneous Forward Current (A)
1
10
100
1000
0 0.5 1 1.5 2 2.5 3 3.5 4
T
J
= 25 °C
T
J
= T
J
max.
70HF (R) series
(140 to 160)
