User Manual

VS-UFB80FA40
www.vishay.com
Vishay Semiconductors
Revision: 21-Oct-11
3
Document Number: 93620
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Fig. 1 - Typical Forward Voltage Drop Characteristics
(Per Leg)
Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics (Per Leg)
1
10
T
J
= 175 °C
T
J
= 25 °C
0
V
F
- Forward Voltage Drop (V)
I
F
- Instantaneous Forward Current (A)
100
1000
0.5 1.5 2.512
0.01
0.1
10
1
100
V
R
- Reverse Voltage (V)
I
R
- Reverse Current (µA)
0.001
1000
0 100 200 300 400
T
J
= 175 °C
T
J
= 25 °C
Reverse Voltage - V
R
(V)
Junction Capacitance - C
T
(pF)
10
100
1000
1 10 100 1000
T
J
= 25 °C
0.01
0.1
1
10
0.0001 0.001 0.01 0.1 1 10
Z
thJC
- Thermal Impedance (°C/W)
t
1
- Rectangular Pulse Duration (s)
DC
Single pulse
(thermal resistance)
P
DM
t
1
t
2
Notes:
1. Duty factor D = t
1
/t
2
2. Peak T
J
= P
DM
x Z
thJC
+ T
C