UH3B Vishay, UH3B Datasheet - Page 3

• Manufacturer Part Number: UH3B
• Description: Surface Mount Ultrafast Rectifier
• Manufacturer: Vishay

RATINGS AND CHARACTERISTICS CURVES
(T
Document Number: 89109
Revision: 29-May-08
A
= 25 °C unless otherwise noted)
Figure 3. Typical Instantaneous Forward Characteristics
0.01
100
3.5
3.0
2.5
2.0
1.5
1.0
0.5
3.0
2.5
2.0
1.5
1.0
0.5
Figure 1. Maximum Forward Current Derating Curve
0.1
10
0
0
1
0.2
0
0
Figure 2. Forward Power Loss Characteristics
T
T
at Mount of Terminal
M
A
= 125 °C
Measured
0.5
25
0.4
T
Instantaneous Forward Voltage (V)
D = 0.1
A
= 150 °C
T
Average Forward Current (A)
M
50
1.0
0.6
- Mount Temperature (°C)
T
D = 0.2
A
1.5
75
0.8
= 175 °C
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T
D = 0.3 D = 0.5
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Resistive or Inductive Load
A
= 25 °C
T
100
2.0
A
1.0
= 100 °C
D = t
125
2.5
1.2
p
/T
D = 0.8
150
T
3.0
1.4
t
D = 1.0
p
175
3.5
1.6
1000
1000
0.01
100
100
100
0.1
10
10
10
0.001
1
1
0.1
Figure 6. Typical Transient Thermal Impedance
10
Junction to Ambient
Vishay General Semiconductor
Figure 4. Typical Reverse Characteristics
Percent of Rated Peak Reverse Voltage (%)
Figure 5. Typical Junction Capacitance
20
0.01
30
UH3B, UH3C & UH3D
t - Pulse Duration (s)
Reverse Voltage (V)
40
1
0.1
T
T
T
A
A
A
50
= 175 °C
= 150 °C
= 125 °C
T
T
A
A
60
= 100 °C
= 25 °C
1
70
10
T
f = 1.0 MHz
V
J
sig
= 25 °C
= 50 mVp-p
80
10
90
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100
100
100
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