Datasheet

Document Number: 93123 For technical questions, contact: [e-mail]
www.vishay.com
Revision: 24-Jun-08 3
MURB820/MURB820-1
Ultrafast Rectifier,
8 A FRED Pt
TM
Vishay High Power Products
Fig. 1 - Typical Forward Voltage Drop Characteristics 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
1
10
T
J
= 175 °C
T
J
= 150 °C
T
J
= 25 °C
0 1.80.4 0.8
V
F
- Forward Voltage Drop (V)
I
F
- Instantaneous Forward Current (A)
100
1.2
0.1
0.2 0.6 1.0 1.4 1.6
0.01
0.1
1
10
100
0 100 150
V
R
- Reverse Voltage (V)
I
R
- Reverse Current (µA)
T
J
= 175 °C
T
J
= 150 °C
T
J
= 125 °C
T
J
= 100 °C
T
J
= 25 °C
200 25050
0.001
100
1000
1 10 100 1000
10
V
R
- Reverse Voltage (V)
C
T
- Junction Capacitance (pF)
T
J
= 25 °C
0.01
0.1
10
0.00001 0.0001 0.001 0.01 0.1 1
t
1
- Rectangular Pulse Duration (s)
Z
thJC
- Thermal Impedance (°C/W)
.
.
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
1
Single pulse
(thermal resistance)
D = 0.50
D = 0.20
D = 0.10
D = 0.05
D = 0.02
D = 0.01