Document Number: 93587

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Revision: 20-May-10

7

T40HF..., T70HF..., T85HF..., T110HF... Series

Power Rectifier Diodes

(T-Modules), 40 A to 110 A

Vishay Semiconductors

Fig. 15 - Forward Power Loss Characteristics

Fig. 16 - Forward Power Loss Characteristics

Fig. 17 - Maximum Non-Repetitive Surge Current

Fig. 18 - Maximum Non-Repetitive Surge Current

0

255075

100

125

150

Maximum Allowable Ambient Temperature (°C)

1

K/

W

1.5

K/ W

2 K

/ W

3 K/ W

5 K/ W

7 K/ W

0

10

20

30

40

50

60

70

80

90

100

0

10

2030

4050

6070

8090

Average Forward Current (A)

RMSLimit

Conduc tion Angle

180°

120°

90°

60°

30°

T85HF.. Series

T = 150°C

J

0

25

50

75

100

125

150

Maximum Allowable Ambient Temperature (°C)

0.5

K/ W

0.7

K/ W

1K/

W

1.5K/

W

2K/W

3K/ W

5K/ W

0

20

40

60

80

100

120

140

0

20406080

100

120

140

DC

180°

120°

90°

60°

30°

RMSLimit

Conduc tion Period

Average Forward Current (A)

T85HF.. Series

T = 150°C

J

400

600

800

1000

1200

1400

1600

110

100

Number Of Equal Amplitude Half Cycle Current Pulses(N)

T85HF.. Series

Initial T = 150°C

@60 Hz 0.0083 s

@50 Hz 0.0100 s

J

At Any Ra ted Loa d Cond ition And With

Ra ted V

App lied Following Surge.

RRM

400

600

800

1000

1200

1400

1600

1800

0.01

0.1

1

Pulse Train Duration (s)

Maximum Non Repetitive Surge Current

Initial T = 150°C

No Voltage Reapplied

Rated V

Reapplied

J

Versus Pulse Train Duration.

RRM

T85HF.. Series