New Product

UH3B, UH3C & UH3D

Vishay General Semiconductor

Document Number: 89109

Revision: 29-May-08

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3

RATINGS AND CHARACTERISTICS CURVES

Figure 1. Maximum Forward Current Derating Curve

Figure 2. Forward Power Loss Characteristics

Figure 3. Typical Instantaneous Forward Characteristics

0

3.5

0

25

50

75

100

125

150

175

Resistive or Inductive Load

3.0

2.5

2.0

1.5

0.5

T

at Mount of Terminal

1.0

0

0.5

2.0

3.0

0

3.5

0.5

Average Forward Current (A)

3.0

2.0

1.5

1.0

D = t

t

p

T

D = 0.1

D = 0.2

D = 0.3 D = 0.5

D = 0.8

D = 1.0

1.0

1.5

2.5

2.5

T

T

T

T

0.2

0.4

0.6

0.8

1.0

1.2

1.6

Instantaneous Forward Voltage (V)

100

10

1

0.1

0.01

1.4

T

Figure 4. Typical Reverse Characteristics

Figure 5. Typical Junction Capacitance

Figure 6. Typical Transient Thermal Impedance

0.1

1

10

100

1000

T

T

T

T

Percent of Rated Peak Reverse Voltage (%)

20

40

60

80

100

0.01

10

30

50

70

90

T

Reverse Voltage (V)

0.1

10

1

100

10

100

T

f = 1.0 MHz

V

t - Pulse Duration (s)

0.001

10

1

100

100

1000

1

10

0.1

Junction to Ambient

0.01