www.vishay.com

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

Document Number: 93400

4

Revision: 19-Aug-08

81CNQ...A Series

Vishay High Power Products

Schottky Rectifier

New Generation 3

D-61 Package, 2 x 40 A

Fig. 1 - Maximum Forward Voltage Drop Characteristics

(Per Leg)

Fig. 2 - Typical Values of Reverse Current vs.

Reverse Voltage (Per Leg)

Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage

(Per Leg)

ForwardVoltageDrop-V

FM

(V)

0.1

1

10

100

1000

0

0.2

0.4

0.6

0.8

1

T = 175°C

T = 125°C

T = 25°C

J

J

J

ReverseVoltage-V

R

(V)

0.001

0.01

0.1

1

10

100

1000

0

5

10 15 20 25 30 35 40 45

150°C

125°C

100°C

75°C

50°C

25°C

Tj = 175°C

ReverseVoltage-V

R

(V)

100

1000

10000

0

10203040

50

T = 25°C

J

t

1

,RectangularPulseDuration(Seconds)

0.01

0.1

1

0.00001

0.0001

0.001

0.01

0.1

1

10

100

Single Pulse

(Thermal Resistance)

D = 0.50

D = 0.33

D = 0.25

D = 0.17

D = 0.08

Notes:

1. Duty factor D = t1/ t2

2. Peak Tj = Pdm x ZthJC + Tc

2

t

1

t

P

DM