Document Number: 93400

For technical questions, contact: diodes-tech@vishay.com

www.vishay.com

Revision: 19-Aug-08

5

81CNQ...A Series

Schottky Rectifier

New Generation 3

D-61 Package, 2 x 40 A

Vishay High Power Products

Fig. 5 - Maximum Allowable Case Temperature vs.

Average Forward Current (Per Leg)

Fig. 6 - Forward Power Loss Characteristics (Per Leg)

Fig. 7 - Maximum Non-Repetitive Surge Current (Per Leg)

Fig. 8 - Unclamped Inductive Test Circuit

AverageForwardCurrent-I

F(AV)

(A)

140

150

160

170

180

0

10

203040

5060

DC

RthJC (DC) = 0.85 °C/W

AverageForwardCurrent-I

F(AV)

(A)

0

4

8

12

16

20

24

28

32

0

10

203040

5060

DC

RMS Limit

D = 0.08

D = 0.17

D = 0.25

D = 0.33

D = 0.50

SquareWavePulseDuration-t

p

(microsec)

100

1000

10000

10

100

1000

10000

At Any Rated Load Condition

And With Rated Vrrm Applied

Following Surge

Current

monitor

High-speed

switch

D.U.T.

R

+

Freewheel

diode

V

L

IRFP460

40HFL40S02