Datasheet

3
Bulletin PD-20544 rev. C 12/01
www.irf.com
40CTQ045, 40CTQ045S, 40CTQ045-1
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
1
10
100
1000
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8
Instantaneous Forward Current - I (A)
T = 150 C
T = 125 C
T = 25 C
J
J
J
F
FM
Forward Voltage Drop - V (V)
0.001
0.01
0.1
1
10
100
1000
0 5 10 15 20 25 30 35 40 45
R
R
125 C
100 C
75 C
50 C
25 C
Reverse Current - I (mA)
T = 150 C
J
Reverse Voltage - V (V)
100
1000
10000
01020304050
T = 25 C
J
R
T
Junction Capacitan ce - C (pF)
Reverse Voltage - V (V)
0.01
0.1
1
10
0.00001 0.0001 0.001 0.01 0.1 1 10 100
thJC
t , Rectangular Pulse Duration (Seconds)
Single Pulse
(Thermal Resistance)
1
Thermal Impedance Z ( C /W )
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
Notes:
1. Duty factor D = t / t
2. Peak T = P x Z + T
1
2
C
thJC
DM
J
2
t
1
t
P
DM