VS-85HF(R), VS-86HF(R), VS-87HF(R), VS-88HF(R) Series
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Vishay Semiconductors
Revision: 07-Dec-16
5
Document Number: 95802
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Fig. 8 - Forward Power Loss Characteristics
Fig. 9 - Maximum Non-Repetitive Surge Current
Fig. 10 - Maximum Non-Repetitive Surge Current
Fig. 11 - Forward Voltage Drop Characteristics
Fig. 12 - Forward Voltage Drop Characteristics
Average Forward Current (A)
Maximum Average Forward Power Loss (W)
Maximum Allowable Ambient Temperature (°C)
25 50 75 100 125 150
1.5 K/W
2 K/W
3 K/W
5 K/W
10 K/W
0.7 K/W
1 K/W
R
thSA
= 0.5 K/W - Delta R
0
20
40
60
80
100
120
140
0 20 40 60 80 100 120 140
DC
180°
120°
90°
60°
30°
RMS Limit
Conduction Period
85HF(R) Series
(1400 V, 1600 V)
Tj = 150 ˚C
Number Of Equal Amplitude
Half Cycle Current Pulses (N)
Peak Half Sine Wave Forward Current (A)
400
600
800
85HF(R) Series
Initial Tj = Tj Max.
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
At Any Rated Load Condition And With
Rated Vrrm Applied Following Surge.
Peak Half Sine Wave Forward Current (A)
Pulse Train Duration (s)
200
400
600
800
1000
1200
1400
1600
1800
0.01 0.1 1
Maximum Non Repetitive Surge Current
Initial Tj = Tj Max.
No Voltage Reapplied
Rated Vrrm Reapplied
Versus Pulse Train Duration.
85HF(R) Series
Instantaneous Forward Voltage (V)
Instantaneous Forward Current (A)
10
100
1000
10 000
0 1 2 3 4 5
6
T
j
= 25°C
T
j
= T
j
Max.
85HF(R) Series
up to 1200 V
1
10
100
1000
0 0.5 1 1.5 2 2.5
T
j
= 25 °C
T
j
= T
j
Max.
88HF (R) Series
Instantaneous Forward Voltage (V)
Instantaneous Forward Current (A)
