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Document Number: 94660

4

Revision: 29-Jul-09

40CPT080-F

Vishay High Power Products High Performance Schottky

Generation 5.0, 2 x 20 A

Fig. 5 - Maximum Allowable Case Temperature vs.

Average Forward Current

Fig. 6 - Forward Power Loss Characteristics

Fig. 7 - Maximum Non-Repetitive Surge Current

Note

(1) Formula used: TC = TJ - (Pd + PdREV) x RthJC;

Pd = Forward power loss = IF(AV) x VFM at (IF(AV)/D) (see fig. 6);

PdREV = Inverse power loss = VR1 x IR (1 - D); IR at VR1 = 80 % rated VR

0

5

10

15

20

25

30

IF(AV) - Average Forward Current (A)

120

150

140

130

160

170

180

DC

See note (1)

Square wave (D = 0.50)

80 % rated V

R applied

0

5

10

15

20

25

30

IF(AV) - Average Forward Current (A)

0

5

10

15

20

DC

180°

120°

90°

60°

30°

RMS limit

tp - Square Wave Pulse Duration (µs)

10

100

1000

10 000

100

1000

10 000