151CMQ... Series
3
Bulletin PD-2.251 rev. B
05/02
www.irf.com
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 ZthJC
Characteristics (Per Leg)
.001
.01
.1
1
10
100
1000
0 5 10 15 20 25 30 35 40 45
Reverse Voltage - V (V)R
R
T = 175°CJ
150°C
125°C
100°C
75°C
50°C
25°C
Reverse C
urrent - I (m
A)
100
1000
10000
0 1020304050
T = 25°CJ
Reverse Voltage - V (V)R
T
Junction Capacitance - C
(pF)
.001
.01
.1
1
10
.00001 .0001 .001 .01 .1 1 10 100
D = 0. 33
D = 0. 50
D = 0. 25
D = 0. 17
D = 0.08
t , Rectangular Pulse Duration (Seconds)1
thJC
Therm
al Im
pedance - Z (°C
/W
)
Single Pulse
(Thermal Resistance)
t2
t1
PDM
Notes:
1. Duty factor D = t / t 1
2
2. Peak T = P x Z + TJDMthJCC
1
10
100
1000
0.2.4.6.811.21.41.6
ard Voltage Drop - V (V)FM
F
Instantaneous Forward Current - I (A)
T = 175°CJ
T = 125°CJ
T = 25°CJ
Forw
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
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