C&H Technology 81CNQ...A Series - Manual (Page 5)

www.vishay.com For technical questions, contact: [email protected] 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)
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics (Per Leg)
Instantaneous Forward Current - I
F
(A)
Forward Voltage Drop - 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
Reverse Current - I
R
(mA)
Reverse Voltage - 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
Junction Capacitance - C
T
(p F)
Reverse Voltage - V
R
(V)
100
1000
10000
0 10 20 30 40 50
T = 25°C
J
t
1
, Rectangular Pulse Duration (Seconds)
Thermal Impedance Z
thJC
(°C/W)
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